LiftMaster 3255M Model Chain Drive Opener User Manual

Owner’s Manual

■ Please read this manual and the enclosed safety materials carefully!

■ Fasten the manual near the garage door after installation.

■ The door WILL NOT CLOSE unless the Protector System

is connected and properly aligned.

■ Periodic checks of the opener are required to ensure safe operation.

■ The model number label is located on the front panel of your opener.

GARAGE DOOR OPENER

Model 3245M 1/3 HP

3255M 1/2 HP

3255-2M 1/2 HP

For Residential Use Only

The Chamberlain Group, Inc.

845 Larch Avenue

Elmhurst, Illinois 60126-1196

www.liftmaster.com

Introduction 2-5

Safety symbol and signal word review . . . . . . . . . . . . . . . 2

Preparing your garage door . . . . . . . . . . . . . . . . . . . . . . . 3

Tools needed. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Planning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Carton inventory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Hardware inventory. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Assembly 6-7

Attach the rail to the motor unit . . . . . . . . . . . . . . . . . . . . 6

Attach the chain to the sprocket . . . . . . . . . . . . . . . . . . . . 6

Tighten the chain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Installation 7-23

Installation safety instructions . . . . . . . . . . . . . . . . . . . . . 7

Determine the header bracket location . . . . . . . . . . . . . . . 8

Install the header bracket . . . . . . . . . . . . . . . . . . . . . . . . . 9

Attach the rail to the header bracket . . . . . . . . . . . . . . . . 10

Position the opener. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Hang the opener . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Install the door control . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Install the light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Attach the emergency release rope and handle. . . . . . . . 14

Electrical requirements . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Install the Protector System

. . . . . . . . . . . . . . . . . . 16-19

Fasten the door bracket. . . . . . . . . . . . . . . . . . . . . . . 20-21

Connect the door arm to the trolley . . . . . . . . . . . . . 22-23

Adjustment 24-26

Adjust the travel limits . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Adjust the force. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Test the safety reversal system. . . . . . . . . . . . . . . . . . . . 26

Test the Protector System

. . . . . . . . . . . . . . . . . . . . . . . 26

Operation 27-30

Operation safety instructions . . . . . . . . . . . . . . . . . . . . . 27

Using your garage door opener . . . . . . . . . . . . . . . . . . . 28

Using the wall-mounted door control . . . . . . . . . . . . . . . 28

To open the door manually . . . . . . . . . . . . . . . . . . . . . . . 28

Care of your opener . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Having a problem? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Diagnostic chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Programming 31-32

To add or reprogram a hand-held remote control. . . . . . 31

To erase all codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

3-Button remotes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

To add, reprogram or change

a Keyless Entry PIN. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Repair Parts 33-34

Rail assembly parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Installation parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Motor unit assembly parts . . . . . . . . . . . . . . . . . . . . . . . 34

Accessories 35

Repair Parts and Service 36

Warranty 36

TABLE OF CONTENTS

When you see these Safety Symbols and Signal Words on

the following pages, they will alert you to the possibility

of serious injury or death if you do not comply with the

warnings that accompany them. The hazard may come

from something mechanical or from electric shock. Read

the warnings carefully.

When you see this Signal Word on the following pages, it

will alert you to the possibility of damage to your garage

door and/or the garage door opener if you do not comply

with the cautionary statements that accompany it. Read

them carefully.

INTRODUCTION

Safety Symbol and Signal Word Review

This garage door opener has been designed and tested to offer safe service provided it is installed, operated, maintained

and tested in strict accordance with the instructions and warnings contained in this manual.

Mechanical

Electrical

To prevent damage to garage door and opener:

• ALWAYS disable locks BEFORE installing and

operating the opener.

• ONLY operate garage door opener at 120V, 60 Hz to

avoid malfunction and damage.

To prevent possible SERIOUS INJURY or DEATH:

• ALWAYS call a trained door systems technician if

garage door binds, sticks or is out of balance. An

unbalanced garage door may NOT reverse when

required.

• NEVER try to loosen, move or adjust garage door,

door springs, cables, pulleys, brackets or their

hardware, ALL of which are under EXTREME tension.

• Disable ALL locks and remove ALL ropes connected

to garage door BEFORE installing and operating

garage door opener to avoid entanglement.

Preparing your garage door

Before you begin:

• Disable locks.

• Remove any ropes connected to garage door.

• Complete the following test to make sure your garage

door is balanced and is not sticking or binding:

1. Lift the door about halfway as shown. Release

the door. If balanced, it should stay in place,

supported entirely by its springs.

2. Raise and lower the door to see if there is any

binding or sticking.

If your door binds, sticks, or is out of balance, call a

trained door systems technician.

Tools needed

During assembly, installation and adjustment of the

opener, instructions will call for hand tools as illustrated

below.

Sectional Door

One-Piece Door

Carpenter’s

Level (Optional)

Tape Measure

Pencil

Wire Cutters

Hack Saw

Claw Hammer

Adjustable End Wrench

Screwdriver

Pliers

Drill

Stepladder

1/2" and 7/16" Sockets

and Wrench

3/16", 5/16" and

5/32" Drill Bits

Planning

Identify the type and height of your garage door. Survey

your garage area to see if any of the conditions below

apply to your installation. Additional materials may

be required. You may ﬁ nd it helpful to refer back to

this page and the accompanying illustrations as you

proceed with the installation of your opener.

— — — — — — — —

SECTIONAL DOOR INSTALLATION

ONE-PIECE DOOR WITHOUT TRACK

ONE-PIECE DOOR WITH TRACK

Horizontal and vertical reinforcement

is needed for light weight garage doors

(ﬁ berglass, steel, aluminum,

door with glass panels, etc.).

See page 20 for details.

Slack in chain tension

is normal when

garage door is closed.

Support bracket &

fastening hardware

is required.

See page 12.

Motor Unit

FINISHED CEILING

Wall-Mounted

Door Control

Extension Spring

Torsion Spring

Header Wall

Access

Door

Safety

Reversing

Sensor

Vertical

Centerline of

Garage Door

Gap between ﬂ oor and bottom of door

must not exceed 1/4" (6 mm).

Gap between ﬂ oor

and bottom of door

must not exceed 1/4" (6 mm).

Gap between ﬂ oor and

bottom of door must

not exceed 1/4" (6 mm).

Safety Reversing Sensor

Safety Reversing

Sensor

Safety

Reversing Sensor

Wall-Mounted

Door Control

Header Wall

Slack in chain tension

is normal when

garage door is closed.

Support bracket

& fastening

hardware is required.

See page 12.

FINISHED CEILING

Motor Unit

Slack in chain tension is

normal when garage door

is closed.

Access

Door

Access

Door

Safety

Reversing

Sensor

Safety

Reversing

Sensor

Your garage door opener is packaged in two cartons which

contain the motor unit and all parts illustrated below.

Accessories will depend on the model purchased.

If anything is missing, carefully check the packing material.

Parts may be stuck in the foam. Hardware for installation

is also listed below.

Carton Inventory

INSTALLATION HARDWARE

Hex Bolt 5/16"-18x7/8" (4)

Lag Screw 5/16"-9x1-5/8" (2)

Clevis Pin 5/16"x2-3/4" (1)

Clevis Pin 5/16"x1-1/4" (1)

Clevis Pin 5/16"x1" (1)

Nut 5/16"-18 (4)

Lock Washer 5/16" (4)

Screw 6ABx1-1/4" (2)

Screw 6-32x1" (2)

Self-Threading Screw 1/4"-14x5/8" (2)

Insulated Staples (10)

Ring Fastener (3)

Drywall Anchors (2)

Carriage Bolt 1/4"-20x1/2" (2)

Wing Nut 1/4"-20 (2)

Rope

Handle

SECURITY✚

Single-Button Remote Control

Multi-Function Door

Control Panel

Motor Unit with Light Lens

Header Bracket

Safety Reversing

Sensor Bracket (2)

Safety Labels

and

Literature

Door Bracket

Curved Door

Arm Section

2 Conductor Bell

Wire White &

White/Red

Trolley

Chain Pulley

Bracket

Remote Control

Visor Clip

Chain

Styrofoam

One-Piece

Rail

Sprocket Cover

Straight Door

Arm Section

The Protector System

(2) Safety Reversing Sensors

(1 Sending Eye and 1 Receiving Eye)

with 2-Conductor White & White/Black

Bell Wire Attached

Models 3245M, 3255M (1)

Model 3255-2M (2)

ASSEMBLY STEP 1

Attach the Rail to the Motor Unit

To avoid installation difﬁ culties, do not run the garage

door opener until instructed to do so.

• Remove the two washered bolts mounted in top of

motor unit.

• Position rail at a 45° angle to opener so one hole in rail

and motor unit line up.

• Thread one of the washered bolts part way in.

Use only these bolts! Use of any other bolts will cause

serious damage to door opener.

• Align rail and styrofoam over sprocket. Cut tape from

rail, chain and styrofoam.

• REMOVE STYROFOAM.

ASSEMBLY STEP 2

Attach the Chain to the Sprocket and Install

the Sprocket Cover

• Position chain over the sprocket. If necessary, loosen

the outer nut on the trolley to obtain more chain slack.

• Insert the second washered bolt. CAUTION: Use only

the bolt previously removed from motor unit!

• Tighten both bolts securely through the rail into the

motor unit as shown.

• Install the sprocket cover: Insert the back tab in the

slot. Squeeze the cover slightly and insert the front tab

in the slot on the mounting plate.

To avoid possible SERIOUS INJURY to ﬁ ngers from

moving garage door opener:

• ALWAYS keep hand clear of sprocket while operating

opener.

• Securely attach sprocket cover BEFORE operating.

To avoid SERIOUS damage to garage door opener,

use ONLY those bolts/fasteners mounted in the top of

the opener.

USE ONLY THIS

TYPE AND SIZE

BOLT

Washered Bolt

5/16"-18x1/2"

Styrofoam

Rail

Hole

USE ONLY THIS

TYPE AND SIZE

BOLT

Washered Bolt

5/16"-18x1/2"

Sprocket

Sprocket Cover

Back Tab Slot

Front Tab Slot

Mounting

Plate

INSTALLATION

ASSEMBLY STEP 3

Tighten the Chain

• Spin the inner nut and lock washer down the trolley

threaded shaft, away from the trolley.

• To tighten the chain, turn outer nut in the direction

shown (Figure 1).

• When the chain is approximately 1/2" (13 mm) above

the base of the rail at its midpoint, re-tighten the inner

nut to secure the adjustment.

Sprocket noise can result if chain is too loose.

When installation is complete, you may notice some chain

droop with the door closed. This is normal. If the chain

returns to the position shown in Figure 2 when the door is

open, do not re-adjust the chain.

NOTE: During future maintenance, ALWAYS pull the

emergency release handle to disconnect trolley before

adjusting chain. You may notice loosening of chain after

Adjustment Step 3 (Test the Safety Reversal System).

Check for proper tension and readjust chain if necessary.

Then repeat Adjustment Step 3.

You have now ﬁ nished assembling your garage door

opener. Please read the following warnings before

proceeding to the installation section.

IMPORTANT INSTALLATION INSTRUCTIONS

To reduce the risk of SEVERE INJURY or DEATH:

WARNING

WARNING WARNING

1. READ AND FOLLOW ALL INSTALLATION WARNINGS

AND INSTRUCTIONS.

2. Install garage door opener ONLY on properly balanced

and lubricated garage door. An improperly balanced

door may NOT reverse when required and could result

in SEVERE INJURY or DEATH.

3. ALL repairs to cables, spring assemblies and other

hardware MUST be made by a trained door systems

technician BEFORE installing opener.

4. Disable ALL locks and remove ALL ropes connected

to garage door BEFORE installing opener to avoid

entanglement.

5. Install garage door opener 7 feet (2.13 m) or more

above ﬂ oor.

6. Mount the emergency release within reach, but at

least 6 feet (1.8 m) above the ﬂ oor and avoiding

contact with vehicles to avoid accidental release.

7. NEVER connect garage door opener to power source

until instructed to do so.

8. NEVER wear watches, rings or loose clothing while

installing or servicing opener. They could be caught

in garage door or opener mechanisms.

9. Install wall-mounted garage door control:

• within sight of the garage door.

• out of reach of children at minimum height of

5 feet (1.5 m).

• away from ALL moving parts of the door.

10. Place entrapment warning label on wall next to

garage door control.

11. Place manual release/safety reverse test label in plain

view on inside of garage door.

12. Upon completion of installation, test safety reversal

system. Door MUST reverse on contact with a 1-1/2"

(3.8 cm) high object (or a 2x4 laid ﬂ at) on the ﬂ oor.

Figure 1

Figure 2

Lock

Washer

Inner Nut

To Tighten Inner Nut

Outer Nut

To Tighten Outer Nut

Trolley

Chain

1/2" (13 mm)

Mid Length of Rail

Base of Rail

INSTALLATION STEP 1

Determine the Header Bracket Location

Installation procedures vary according to garage door

types. Follow the instructions which apply to your door.

1. Close the door and mark the inside vertical centerline

of the garage door.

2. Extend the line onto the header wall above the door.

You can fasten the header bracket within 4 feet

(1.22 m) of the left or right of the door center only if

a torsion spring or center bearing plate is in the way;

or you can attach it to the ceiling (see page 9) when

clearance is minimal. (It may be mounted on the

wall upside down if necessary, to gain approximately

1/2" (1 cm).)

If you need to install the header bracket on a 2x4

(on wall or ceiling), use lag screws (not provided)

to securely fasten the 2x4 to structural supports as

shown here and on page 9.

3. Open your door to the highest point of travel as shown.

Draw an inter secting horizontal line on the header wall

above the high point:

• 2" (5 cm) above the high point for sectional door

and one-piece door with track.

• 8" (20 cm) above the high point for one-piece door

without track.

This height will provide travel clearance for the top

edge of the door.

NOTE: If the total number of inches exceeds the height

available in your garage, use the maximum height

possible, or refer to page 9 for ceiling installation.

To prevent possible SERIOUS INJURY or DEATH:

• Header bracket MUST be RIGIDLY fastened to

structural support on header wall or ceiling,

otherwise garage door might NOT reverse when

required. DO NOT install header bracket over drywall.

• Concrete anchors MUST be used if mounting header

bracket or 2x4 into masonry.

• NEVER try to loosen, move or adjust garage door,

springs, cables, pulleys, brackets, or their hardware,

ALL of which are under EXTREME tension.

• ALWAYS call a trained door systems technician if

garage door binds, sticks, or is out of balance. An

unbalanced garage door might NOT reverse when

required.

Unﬁ nished

Ceiling

Header Wall

Vertical Centerline

of Garage Door

2x4

Structural

Supports

Level

(Optional)

Header Wall

2" (5 cm)

Highest

Point of

Travel

Highest

Point of

Travel

Highest

Point of

Travel

Highest

Point of

Travel

Track

Header Wall

8" (20 cm)

Header Wall

Door

Jamb

Hardware

Door

Pivot

Sectional door with

curved track

One-piece door without track:

jamb hardware

One-piece door with

horizontal track

One-piece door without track:

pivot hardware

OPTIONAL

CEILING

MOUNT

FOR

HEADER

BRACKET

INSTALLATION STEP 2

Install the Header Bracket

You can attach the header bracket either to the wall above

the garage door, or to the ceiling. Follow the instructions

which will work best for your particular requirements.

DO NOT install the header bracket over drywall.

If installing into masonry, use concrete anchors

(not provided).

WALL HEADER BRACKET INSTALLATION

• Center the bracket on the vertical centerline with the

bottom edge of the bracket on the horizontal line as

shown (with the arrow pointing toward the ceiling).

• Mark the vertical set of bracket holes (do not use the

holes designated for ceiling mount). Drill 3/16" pilot

holes and fasten the bracket securely to a structural

support with the hardware provided.

HARDWARE SHOWN ACTUAL SIZE

Header Bracket

2x4 Structural

Support

Vertical Centerline

of Garage Door

Optional Wall

Mounting Holes

Lag Screws

5/16"-9x1-5/8"

Vertical Centerline

of Garage Door

Door Spring

Highest Point

of Garage

Door Travel

Horizontal

Line

- Header Wall -

Wall Mounting Holes

- Garage Door -

- Header Wall -

Lag Screw

5/16"-9x1-5/8"

Garage Door

- Finished Ceiling -

Ceiling Mounting Holes

Vertical

Centerline

of Garage

Door

Vertical Centerline

of Garage Door

Lag Screws

5/16"-9x1-5/8"

Header

Bracket

Door

Spring

6" (15 cm)

Maximum

CEILING HEADER BRACKET INSTALLATION

• Extend the vertical centerline onto the ceiling as shown.

• Center the bracket on the vertical mark, no more than

6" (15 cm) from the wall. Make sure the arrow is

pointing toward the wall. The bracket can be mounted

ﬂ ush against the ceiling when clearance is minimal.

• Mark the side holes. Drill 3/16" pilot holes and fasten

bracket securely to a structural support with the

hardware provided.

INSTALLATION STEP 3

Attach the Rail to the Header Bracket

• Position the opener on the garage ﬂ oor below the

header bracket. Use packing material as a protective

base. NOTE: If the door spring is in the way you’ll need

help. Have someone hold the opener securely on a

temporary support to allow the rail to clear the spring.

• Position the rail bracket against the header bracket.

• Align the bracket holes and join with a clevis pin

as shown.

• Insert a ring fastener to secure.

HARDWARE SHOWN ACTUAL SIZE

Header Wall

Header Bracket

Clevis Pin

5/16"x2-3/4"

Chain

Pulley

Bracket

Rail

Temporary

Support

Ring Fastener

Clevis Pin

5/16"x2-3/4"

Garage

Door

Ring Fastener

Chain Pulley

Bracket

Rail

ONE-PIECE DOOR WITHOUT TRACK

A 2x4 on its side is convenient for setting an ideal

door-to-rail distance.

• Remove foam packaging.

• Raise the opener onto a stepladder. You will need help

at this point if the ladder is not tall enough.

• Open the door all the way and place a 2x4 on its side

on the top section of the door beneath the rail.

• The top of the door should be level with the top of the

motor unit. Do not position the opener more than

4" (10 cm) above this point.

INSTALLATION STEP 4

Position the Opener

Follow instructions which apply to your door type as

illustrated.

SECTIONAL DOOR OR ONE-PIECE DOOR WITH

TRACK

A 2x4 laid ﬂ at is convenient for setting an ideal

door-to-rail distance.

• Remove foam packaging.

• Raise the opener onto a stepladder. You will need help

at this point if the ladder is not tall enough.

• Open the door all the way and place a 2x4 laid ﬂ at on

the top section beneath the rail.

• If the top section or panel hits the trolley when you

raise the door, pull down on the trolley release arm to

disconnect inner and outer sections. Slide the outer

trolley toward the motor unit. The trolley can remain

disconnected until Installation Step 12 is completed.

To prevent damage to garage door, rest garage door

opener rail on 2x4 placed on top section of door.

Rail

Door

2x4 is used to determine

the correct mounting height

from ceiling.

2x4 is used to determine

the correct mounting height

from ceiling.

Header Bracket

RELEASED

Trolley

Release Arm

ENGAGED

Top of Door

INSTALLATION STEP 5

Hang the Opener

Three representative installations are shown. Yours may

be different. Hanging brackets should be angled

(Figure 1) to provide rigid support. On ﬁ nished ceilings

(Figure 2 and Figure 3), attach a sturdy metal bracket

to structural supports before installing the opener. This

bracket and fastening hardware are not provided.

1. Measure the distance from each side of the motor unit

to the structural support.

2. Cut both pieces of the hanging bracket to required

lengths.

3. Drill 3/16" pilot holes in the structural supports.

4. Attach one end of each bracket to a support with

5/16"-18x1-7/8" lag screws (not provided).

5. Fasten the opener to the hanging brackets with

5/16"-18x7/8" hex bolts, lock washers and nuts.

6. Check to make sure the rail is centered over the door

(or in line with the header bracket if the bracket is not

centered above the door).

7. Remove the 2x4. Operate the door manually. If the

door hits the rail, raise the header bracket.

NOTE: DO NOT connect power to opener at this time.

To avoid possible SERIOUS INJURY from a falling

garage door opener, fasten it SECURELY to structural

supports of the garage. Concrete anchors MUST be

used if installing ANY brackets into masonry.

Figure 1

Figure 2

Figure 3

FINISHED CEILING

Bolt 5/16"-18x7/8"

Lock Washer 5/16"

Nut 5/16"-18

Bolt 5/16"-18x7/8"

Lock Washer 5/16"

Nut 5/16"-18

Bolt 5/16"-18x7/8"

Lock Washer 5/16"

Nut 5/16"-18

(Not Provided)

Bolt 5/16"-18x7/8"

Lock Washer 5/16"

Nut 5/16"-18

(Not Provided)

Bolt 5/16"-18x7/8"

Lock Washer 5/16"

Nut 5/16"-18

Structural

Supports

Measure

Distance

Hidden Support

Bracket

(Not Provided)

HARDWARE SHOWN ACTUAL SIZE

Hex Bolt

5/16"-18x7/8"

Lock Washer

5/16"

Nut

5/16"-18

(Not Provided)

Lag Screws 5/16"-18x1-7/8"

(Not Provided)

Lag Screws 5/16"-18x1-7/8"

(Not Provided)

Lag Screws

5/16"-18x1-7/8"

To prevent possible SERIOUS INJURY or DEATH from

electrocution:

• Be sure power is NOT connected BEFORE installing

door control.

• Connect ONLY to 24 VOLT low voltage wires.

To prevent possible SERIOUS INJURY or DEATH from a

closing garage door:

• Install door control within sight of garage door,

out of reach of children at a minimum height of 5 feet

(1.5 m), and away from ALL moving parts of door.

• NEVER permit children to operate or play with door

control push buttons or remote control transmitters.

• Activate door ONLY when it can be seen clearly, is

properly adjusted, and there are no obstructions to

door travel.

• ALWAYS keep garage door in sight until completely

closed. NEVER permit anyone to cross path of closing

garage door.

INSTALLATION STEP 6

Install the Door Control

Locate door control within sight of door at a minimum

height of 5 feet (1.5 m) where small children cannot

reach, and away from moving parts of door and door

hardware. The installation surface must be smooth and

ﬂ at. If installing into drywall (Figure 1), drill 5/32" holes

and use anchors provided. For pre-wired installations

(as in new home construction), it may be mounted to

a single gang box (Figure 2). NOTE: After installation,

a green or amber indicator light behind the cover will

indicate proper connection. If not lit, the Lock and Light

features will not function (reverse wires to correct).

1. Strip 7/16" (11 mm) of insulation from one end of bell

wire and connect to the two screw terminals on back

of door control by color: white wire to WHT and white/

red wire to the RED (Figure 3).

2. Remove cover by gently prying at slot in the side of

the cover with a small ﬂ at head screwdriver (Figure 4).

Fasten with 6ABx1-1/4" self-tapping screws (drywall

installation) or 6-32x1" machine screws (into gang

box) as follows:

• Drill and install bottom screw, allowing 1/8" (3 mm)

to protrude above wall surface.

• Position bottom of door control on screw head and

slide down to secure. Adjust screw for snug ﬁ t.

• Install top screw with care to avoid cracking plastic

housing. DO NOT overtighten.

• Insert bottom tabs and snap on cover.

NOTE: The push bar may stick if the door control is not

mounted on a smooth surface. If a click is not heard

when pressing the push bar, loosen the two mounting

screws or relocate the door control to a smoother

surface.

3. (Standard installation only) Run bell wire up wall and

across ceiling to motor unit. Use insulated staples to

secure wire in several places. Do not pierce wire with a

staple, creating a short or open circuit.

4. Strip 7/16" (11 mm) of insulation from end of bell wire.

Connect bell wire to the quick-connect terminals as

follows: white to white and white/red to red (Figure 5).

NOTE: When connecting multiple door controls to the

opener, twist same color wires together. Insert wires

into quick-connect holes: white to white and red/white

to red.

5. Use tacks or staples to permanently attach entrapment

warning label to wall near door control, and manual

release/safety reverse test label in a prominent location

on inside of garage door.

NOTE: DO NOT connect power and operate opener at this

time. The trolley will travel to the full open position but

will not return to the close position until the sensor beam

is connected and properly aligned.

HARDWARE SHOWN ACTUAL SIZE

Figure 5

Figure 1

Figure 3 Figure 4

Figure 2

REMOVE COVER

Screw 6ABx1-1/4"

(standard installation)

Insulated Staples

PRE-WIRED

INSTALLATION

MULTI-FUNCTION

DOOR CONTROL (BACK)

STANDARD

INSTALLATION

To Replace

Insert Bottom

Tabs First

To Replace

Insert Bottom

Tabs First

Top Mounting Hole

Terminal Screws

Bell Wire

Bottom Mounting Hole

Door Control

Connections

To release or insert

wire, push in tab

with screwdriver tip

White

Grey

Red

Strip wire 7/16" (11 mm)

Slot

24 Volt

Bell Wire

Drywall Anchors

Screw 6-32x1"

(pre-wired)

INSTALLATION STEP 7

Install the Light

• Press the release tabs on both sides of lens. Gently

rotate lens back and downward until the lens hinge is

in the fully open position. Do not remove the lens.

• Install a 100 watt maximum light bulb in each socket.

Light bulb size should be A19, standard neck only.

The lights will turn ON and remain lit for approximately

4-1/2 minutes when power is connected. Then the

lights will turn OFF.

• Reverse the procedure to close the lens.

• Use A19, standard neck garage door opener bulbs for

replacement.

NOTE: Use only standard light bulbs. The use of short

neck or speciality light bulbs may overheat the endpanel

or light socket.

INSTALLATION STEP 8

Attach the Emergency Release Rope and

Handle

• Thread one end of the rope through the hole in the

top of the red handle so “NOTICE” reads right side up

as shown. Secure with an overhand knot at least

1" (2.5 cm) from the end of the rope to prevent

slipping.

• Thread the other end of the rope through the hole in

the release arm of the outer trolley.

• Adjust rope length so the handle is 6 feet (1.83 m)

above the ﬂ oor. Ensure that the rope and handle clear

the tops of all vehicles to avoid entanglement. Secure

with an overhand knot.

NOTE: If it is necessary to cut the rope, heat seal the cut

end with a match or lighter to prevent unraveling.

To prevent possible OVERHEATING of the endpanel or

light socket:

• DO NOT use short neck or specialty light bulbs.

• DO NOT use halogen bulbs. Use ONLY incandescent.

To prevent damage to the opener:

• DO NOT use bulbs larger than 100W.

• ONLY use A19 size bulbs.

To prevent possible SERIOUS INJURY or DEATH from

a falling garage door:

• If possible, use emergency release handle to

disengage trolley ONLY when garage door is

CLOSED. Weak or broken springs or unbalanced

door could result in an open door falling rapidly and/

or unexpectedly.

• NEVER use emergency release handle unless garage

doorway is clear of persons and obstructions.

• NEVER use handle to pull door open or closed. If

rope knot becomes untied, you could fall.

100 Watt (Max)

Standard Light Bulb

Release Tab

Lens Hinge

Overhand

Knot

Trolley

Release Arm

Emergency

Release Handle

Rope

Trolley

INSTALLATION STEP 9

Electrical Requirements

To avoid installation difﬁ culties, do not run the opener

at this time.

To reduce the risk of electric shock, your garage door

opener has a grounding type plug with a third grounding

pin. This plug will only ﬁ t into a grounding type outlet.

If the plug doesn’t ﬁ t into the outlet you have, contact a

qualiﬁ ed electrician to install the proper outlet.

If permanent wiring is required by your local code, refer

to the following procedure.

To make a permanent connection through the 7/8" hole in

the top of the motor unit:

• Remove the motor unit cover screws and set the cover

aside.

• Remove the attached 3-prong cord.

• Connect the black (line) wire to the screw on the brass

terminal; the white (neutral) wire to the screw on

the silver terminal; and the ground wire to the green

ground screw. The opener must be grounded.

• Reinstall the cover.

To avoid installation difﬁ culties, do not run the opener

at this time.

To prevent possible SERIOUS INJURY or DEATH from

electrocution or ﬁ re:

• Be sure power is NOT connected to the opener, and

disconnect power to circuit BEFORE removing cover

to establish permanent wiring connection.

• Garage door installation and wiring MUST be in

compliance with ALL local electrical and building

codes.

• NEVER use an extension cord, 2-wire adapter, or

change plug in ANY way to make it ﬁ t outlet. Be sure

the opener is grounded.

RIGHT WRONG

PERMANENT WIRING

CONNECTION

Ground

Tab

Black

Wire

Black

Wire

White

Wire

White

Wire

Green

Ground

Screw

Ground

Wire

Facing the door from inside the garage.

INSTALLATION STEP 10

Install The Protector System

The safety reversing sensor must be connected and

aligned correctly before the garage door opener will

move in the down direction.

IMPORTANT INFORMATION ABOUT THE SAFETY

REVERSING SENSOR

When properly connected and aligned, the sensor will

detect an obstacle in the path of its electronic beam.

The sending eye (with an amber indicator light) transmits

an invisible light beam to the receiving eye (with a green

indicator light). If an obstruction breaks the light beam

while the door is closing, the door will stop and reverse

to full open position, and the opener lights will ﬂ ash

10 times.

The units must be installed inside the garage so that the

sending and receiving eyes face each other across the

door, no more than 6" (15 cm) above the ﬂ oor. Either can

be installed on the left or right of the door as long as the

sun never shines directly into the receiving eye lens.

The mounting brackets are designed to clip onto the track

of sectional garage doors without additional hardware.

If it is necessary to mount the units on the wall, the

brackets must be securely fastened to a solid surface

such as the wall framing. Extension brackets (see

Accessories) are available if needed. If installing in

masonry construction, add a piece of wood at each

location to avoid drilling extra holes in masonry if

repositioning is necessary.

The invisible light beam path must be unobstructed. No

part of the garage door (or door tracks, springs, hinges,

rollers or other hardware) may interrupt the beam while

the door is closing.

Be sure power is NOT connected to the garage door

opener BEFORE installing the safety reversing sensor.

To prevent SERIOUS INJURY or DEATH from a

closing garage door:

• Correctly connect and align the safety reversing

sensor. This required safety device MUST NOT be

disabled.

• Install the safety reversing sensor so beam is NO

HIGHER than 6" (15 cm) above garage ﬂ oor.

Safety Reversing Sensor

6" (15 cm) max. above ﬂ oor

Safety Reversing Sensor

6" (15 cm) max. above ﬂ oor

Invisible Light Beam

Protection Area

INSTALLING THE BRACKETS

Be sure power to the opener is disconnected. Install

and align the brackets so the sensors will face each other

across the garage door, with the beam no higher than

6" (15 cm) above the ﬂ oor. They may be installed in one of

three ways, as follows.

Garage door track installation (preferred):

• Slip the curved arms over the rounded edge of each

door track, with the curved arms facing the door. Snap

into place against the side of the track. It should lie

ﬂ ush, with the lip hugging the back edge of the track,

as shown in Figure 1.

If your door track will not support the bracket securely,

wall installation is recommended.

Wall installation (Figures 2 & 3):

• Place the bracket against the wall with curved arms

facing the door. Be sure there is enough clearance for

the sensor beam to be unobstructed.

• If additional depth is needed, an extension bracket (see

Accessories) or wood blocks can be used.

• Use bracket mounting holes as a template to locate

and drill (2) 3/16" diameter pilot holes on the wall at

each side of the door, no higher than 6" (15 cm) above

the ﬂ oor.

• Attach brackets to wall with lag screws (not provided).

• If using extension brackets or wood blocks, adjust

right and left assemblies to the same distance out from

the mounting surface. Make sure all door hardware

obstructions are cleared.

Floor installation (Figure 4):

• Use wood blocks or extension brackets (see

Accessories) to elevate sensor brackets so the lenses

will be no higher than 6" (15 cm) above the ﬂ oor.

• Carefully measure and place right and left assemblies

at the same distance out from the wall. Be sure all door

hardware obstructions are cleared.

• Fasten to the ﬂ oor with concrete anchors as shown.

HARDWARE SHOWN ACTUAL SIZE

Figure 4

Figure 3

Figure 2

Figure 1

DOOR TRACK MOUNT (RIGHT SIDE)

WALL MOUNT (RIGHT SIDE)

FLOOR MOUNT (RIGHT SIDE)

Safety

Reversing

Sensor

Bracket

Safety

Reversing

Sensor

Bracket

(Provided with

Extension Bracket)

Extension Bracket

(See Accessories)

Safety

Reversing

Sensor

Bracket

Safety

Reversing

Sensor

Bracket

Door

Track

Lip

Indicator

Light

Lens

Carriage Bolt

1/4"-20x1/2"

Wing Nut

1/4"-20

Staples

Lens

Attach with

Concrete Anchors

(Not Provided)

Indicator

Light

(Provided with

Extension Bracket)

Indicator

Light

Lag Screws

(Not Provided)

Indicator

Light

Fasten Wood Block to Wall with

Lag Screws (Not Provided)

MOUNTING AND WIRING THE SAFETY

REVERSING SENSORS

Mounting:

• Slide a 1/4"-20x1/2" carriage bolt head into the slot

on each sensor. Use wing nuts to fasten sensors

to brackets, with lenses pointing toward each other

across the door. Be sure the lens is not obstructed by a

bracket extension (Figure 5).

• Finger tighten the wing nuts.

Option A - Installation Without Pre-Wiring:

• Run the bell wire from both sensors to the garage

door opener. Attach the wire to the wall and ceiling

with the staples (Figure 6).

Option B - Pre-Wired Installation:

If your garage already has wires installed for the safety

reversing sensors, follow the instructions below:

• Cut the end of the safety reversing sensor wire, making

sure there is enough wire to reach the pre-installed

wires from the wall (Figure 7).

• Separate the safety reversing sensor wires and strip

7/16" (11 mm) of insulation from each end. Choose two

of the pre-installed wires and strip 7/16" (11 mm) of

insulation from each end. Make sure that you choose

the same color pre-installed wires for each sensor

(Figure 8).

• Connect the pre-installed wires to the sensor wires with

wire nuts making sure the colors correspond for each

sensor (Figure 9).

Figure 5

Figure 6

Figure 7

Figure 9

Figure 8

Safety Reversing

Sensor Wires

Safety Reversing

Sensor Wires

White

White/Black

Not Provided

Pre-Installed

Wires

7/16"

(11 mm)

7/16"

(11 mm)

Pre-Installed

Wires

Wing Nut

1/4"-20

Lens

Carriage Bolt

1/4"-20x1/2"

ALIGNING THE SAFETY REVERSING SENSORS

• Plug in the opener. The indicator lights in both the

sending and receiving eyes will glow steadily if wiring

connections and alignment are correct.

The sending eye amber indicator light will glow regardless

of alignment or obstruction. If the green indicator light in

the receiving eye is off, dim, or ﬂ ickering (and the invisible

light beam path is not obstructed), alignment is required.

• Loosen the sending eye wing nut and readjust, aiming

directly at the receiving eye. Lock in place.

• Loosen the receiving eye wing nut and adjust sensor

until it receives the sender’s beam. When the green

indicator light glows steadily, tighten the wing nut.

TROUBLESHOOTING THE SAFETY

REVERSING SENSORS

1. If the sending eye indicator light does not glow steadily

after installation, check for:

• Electric power to the opener.

• A short in the white or white/black wires. These can

occur at staples, or at opener connections.

• Incorrect wiring between sensors and opener.

• A broken wire.

2. If the sending eye indicator light glows steadily but the

receiving eye indicator light doesn’t:

• Check alignment.

• Check for an open wire to the receiving eye.

3. If the receiving eye indicator light is dim, realign

either sensor.

NOTE: When the invisible beam path is obstructed or

misaligned while the door is closing, the door will reverse.

If the door is already open, it will not close. The opener

lights will blink 10 times. See page 16.

Connect to garage door opener:

• Strip 7/16" (11 mm) of insulation from each set of

wires. Separate white and white/black wires sufﬁ ciently

to connect to the opener quick-connect terminals.

Twist like colored wires together. Insert wires into

quick-connect holes: white to white and white/black to

grey (Figure 10).

Figure 10

- Finished Ceiling -

Bell Wire

Connect Wire to

Quick-Connect Terminals

Safety

Reversing

Sensor

Safety Reversing

Sensor

Invisible Light Beam

Protection Area

Quick-Connect Terminals

Red White

7/16" (11 mm)1. Strip wire 7/16" (11 mm)

2. Twist like colored

wires together

3. To insert or release wire,

push in tab with

screwdriver tip

Grey

Fiberglass, aluminum or lightweight steel garage

doors WILL REQUIRE reinforcement BEFORE

installation of door bracket. Contact your door

manufacturer for reinforcement kit.

INSTALLATION STEP 11

Fasten the Door Bracket

Follow instructions which apply to your door type as

illustrated below or on the following page.

A horizontal reinforcement brace should be long enough

to be secured to two or three vertical supports. A vertical

reinforcement brace should cover the height of the top

panel.

Figure 1 shows one piece of angle iron as the horizontal

brace. For the vertical brace, 2 pieces of angle iron are

used to create a U-shaped support. The best solution is to

check with your garage door manufacturer for an opener

installation door reinforcement kit.

NOTE: Many door reinforcement kits provide for direct

attachment of the clevis pin and door arm. In this case you

will not need the door bracket; proceed to Step 12.

SECTIONAL DOORS

1. Center the door bracket on the previously marked

vertical centerline used for the header bracket

installation. Note correct UP placement, as stamped

inside the bracket.

2. Position the top edge of the bracket 2"-4" (5-10 cm)

below the top edge of the door, OR directly below any

structural support across the top of the door.

3. Mark, drill holes and install as follows, depending on

your door’s construction:

Metal or light weight doors using a vertical angle iron

brace between the door panel support and the door

bracket:

• Drill 3/16" fastening holes. Secure the door bracket

using the two 1/4"-14x5/8" self-threading screws

(Figure 2A).

• Alternately, use two 5/16" bolts, lock washers and nuts

(not provided) (Figure 2B).

Metal, insulated or light weight factory reinforced doors:

• Drill 3/16" fastening holes. Secure the door bracket

using the self-threading screws (Figure 3).

Wood Doors:

• Use top and bottom or side to side door bracket holes.

Drill 5/16" holes through the door and secure bracket

with 5/16"x2" carriage bolts, lock washers and nuts

(not provided) (Figure 4).

NOTE: The 1/4"-14x5/8" self-threading screws are not

intended for use on wood doors.

Figure 1

Figure 2A

Figure 3

Figure 4

Figure 2B

HARDWARE

SHOWN

ACTUAL SIZE

HORIZONTAL AND VERTICAL

REINFORCEMENT IS NEEDED

FOR LIGHTWEIGHT GARAGE

DOORS (FIBERGLASS,

ALUMINUM, STEEL, DOORS

WITH GLASS PANEL, ETC).

(NOT PROVIDED)

Header

Bracket

Door

Bracket

Location

Vertical

Centerline

of Garage

Door

Vertical

Reinforcement

Vertical

Reinforcement

Vertical

Centerline

of Garage

Door

Vertical

Centerline of

Garage Door

Self-Threading

Screw

1/4"-14x5/8"

Self-Threading

Screw

1/4"-14x5/8"

Vertical

Centerline of

Garage Door

Door

Bracket

Self-Threading

Screw 1/4"-14x5/8"

Nut

5/16"-18

Lock

Washer

5/16"

Door

Bracket

Bolt

5/16"-18x2"

(Not

Provided)

Vertical

Centerline

of Garage

Door

Bolt 5/16"x2"

(Not Provided)

Inside Edge

of Door or

Reinforcement

Board

ONE-PIECE DOORS

Please read and comply with the warnings and

reinforcement instructions on the previous page.

They apply to one-piece doors also.

• Center the door bracket on the top of the door, in line

with the header bracket as shown. Mark either the left

and right, or the top and bottom holes.

• Metal Doors: Drill 3/16" pilot holes and fasten the

bracket with the 1/4"-14x5/8" self-threading screws

provided.

• Wood Doors: Drill 5/16" holes and use 5/16"x2"

carriage bolts, lock washers and nuts (not provided) or

5/16"x1-1/2" lag screws (not provided) depending on

your installation needs.

NOTE: The door bracket may be installed on the top edge

of the door if required for your installation. (Refer to the

dotted line optional placement drawing.)

HARDWARE SHOWN

ACTUAL SIZE

Self-Threading Screw

1/4"-14x5/8"

WOOD DOOR

METAL DOOR

- Finished Ceiling -

HORIZONTAL

AND VERTICAL

REINFORCEMENT

IS NEEDED FOR

LIGHTWEIGHT

GARAGE DOORS

(FIBERGLASS,

ALUMINUM,

STEEL, DOORS

WITH GLASS

PANEL, ETC).

(NOT PROVIDED)

Self-Threading

Screw 1/4"-14x5/8"

Top of Door

(Inside Garage)

Top of Door

(Inside Garage)

Top Edge

of Door

Top Edge

of Door

Optional

Placement

Optional

Placement

Carriage Bolt

5/16"x2"

(Not Provided)

For a door with no exposed framing, or for the

optional installation, use lag screws 5/16"x1-1/2"

(Not Provided) to fasten door bracket.

Lock Washer 5/16"

Nut

5/16"-18

Door

Bracket

Door

Bracket

Header

Wall

Header

Bracket

2x4

Support

Door

Bracket

Optional

Placement

of Door

Bracket

Vertical

Centerline

of Garage

Door

INSTALLATION STEP 12

Connect Door Arm to Trolley

Follow instructions which apply to your door type as

illustrated below and on the following page.

SECTIONAL DOORS ONLY

Make sure garage door is fully closed. Pull the emergency

release handle to disconnect the outer trolley from the

inner trolley. Slide the outer trolley back (away from the

door) about 2" (5 cm) as shown in Figures 1, 2 and 3.

Figure 1:

• Fasten straight door arm section to outer trolley with

the 5/16"x1" clevis pin. Secure the connection with a

ring fastener.

• Fasten curved section to the door bracket in the same

way, using the 5/16"x1-1/4" clevis pin.

IMPORTANT: The groove on the straight door arm MUST

face away from the curved door arm (Figure 4).

Figure 2:

• Bring arm sections together. Find two pairs of holes

that line up and join sections. Select holes as far apart

as possible to increase door arm rigidity.

Figure 3, Hole alignment alternative:

• If holes in curved arm are above holes in straight arm,

disconnect straight arm. Cut about 6" (15 cm) from the

solid end. Reconnect to trolley with cut end down as

shown.

• Bring arm sections together.

• Find two pairs of holes that line up and join with bolts,

lock washers and nuts.

Pull the emergency release handle toward the opener at

a 45° angle so that the trolley release arm is horizontal.

Proceed to Adjustment Step 1, page 24. Trolley will

re-engage automatically when opener is operated.

Figure 1

Figure 2

Figure 3

Figure 4

HARDWARE SHOWN

ACTUAL SIZE

Straight

Door Arm

Straight

Door Arm

Curved

Door

Arm

Curved

Door

Arm

(Groove

facing out)

CORRECT INCORRECT

Inner Trolley

Outer Trolley

Ring

Fastener

Clevis Pin

5/16"x1"

Emergency

Release

Handle

Straight

Door Arm

Curved

Door Arm

Clevis Pin

5/16"x1-1/4"

Lock

Washers

5/16"

Lock

Washers

5/16"

Nuts

5/16"-18

Nuts

5/16"-18

Nut 5/16"-18 Ring Fastener

Clevis Pin 5/16"x1-1/4"

(Door Bracket)

Clevis Pin 5/16"x1"

(Trolley)

Hex Bolt

5/16"-18x7/8"

Lock Washer 5/16"

Bolts

5/16"-18x7/8"

Bolts

5/16"-18x7/8"

Cut This End

Door Bracket

ALL ONE-PIECE DOORS

1. Assemble the door arm, Figure 5:

IMPORTANT: The groove on the straight door arm MUST

face away from the curved door arm (Figure 5).

• Fasten the straight and curved door arm sections

together to the longest possible length (with a 2 or 3

hole overlap).

• With the door closed, connect the straight door arm

section to the door bracket with the 5/16"x1-1/4"

clevis pin.

• Secure with a ring fastener.

2. Adjustment procedures, Figure 6:

• On one-piece doors, before connecting the door arm

to the trolley, the travel limits must be adjusted. Limit

adjust ment screws are located on the left side panel

as shown on page 24. Follow adjustment procedures

below.

• Open door adjustment: decrease UP travel limit

- Turn the UP limit adjustment screw

counterclockwise 4 turns.

- Press the Door Control push button. The trolley will

travel to the fully open position.

- Manually raise the door to the open position

(parallel to the ﬂ oor), and lift the door arm to the

trolley. The arm should touch the trolley just in back

of the door arm connector hole. Refer to the fully

open trolley/door arm positions in the illustration.

If the arm does not extend far enough, adjust the

limit further. One full turn equals 2" (5 cm) of trolley

travel.

• Closed door adjustment: decrease DOWN travel

limit

- Turn the DOWN limit adjustment screw clockwise

4 complete turns.

- Press the Door Control push button. The trolley will

travel to the fully closed position.

Figure 5

Figure 6

- Manually close the door and lift the door arm to the

trolley. The arm should touch the trolley just ahead of

the door arm connector hole. Refer to the fully closed

trolley/door arm positions in the illustration. If the arm

is behind the connector hole, adjust the limit further.

One full turn equals 2" (5 cm) of trolley travel.

3. Connect the door arm to the trolley:

• Close the door and join the curved arm to the

connector hole in the trolley with the remaining clevis

pin. It may be necessary to lift the door slightly to

make the connection.

• Secure with a ring fastener.

• Run the opener through a complete travel cycle. If

the door has a slight “backward” slant in full open

position as shown in the illustration, decrease the UP

limit until the door is parallel to the ﬂ oor.

NOTE: When setting the up limit on the following page, the

door should not have a “backward” slant when fully open

as illustrated below. A slight backward slant will cause

unnecessary bucking and/or jerking operation as the door

is being opened or closed from the fully open position.

Straight

Door Arm

Straight

Door Arm

Curved

Door

Arm

Curved

Door

Arm

(Groove

facing out)

CORRECT INCORRECT

Door

Bracket

Clevis Pin

5/16"x1-1/4"

Straight

Arm

Bolts

5/16"-18x7/8"

Ring

Fastener

Lock

Washers

5/16"

Nuts

5/16"-18

Curved

Door Arm

Inner Trolley

Outer Trolley

Emergency Release

Handle

Correct Angle

Open Door

Door with Backward

Slant (Incorrect)

Outer Trolley

Door Arm

Connector Hole

Door Arm

Closed Door

Inner Trolley

ADJUSTMENT STEP 1

Adjust the UP and DOWN Travel Limits

Limit adjustment settings regulate the points at which the

door will stop when moving up or down.

To operate the opener, press the Door Control push bar.

Run the opener through a complete travel cycle.

• Does the door open and close completely?

• Does the door stay closed and not reverse

unintentionally when fully closed?

If your door passes both of these tests, no limit

adjustments are necessary unless the reversing test fails

(Adjustment Step 3, page 26).

Adjustment procedures are outlined below. Read the

procedures carefully before proceeding to Adjustment

Step 2. Use a screwdriver to make limit adjustments.

Run the opener through a complete travel cycle after

each adjustment.

NOTE: Repeated operation of the opener during adjustment

procedures may cause the motor to overheat and shut off.

Simply wait 15 minutes and try again. If anything interferes

with the door’s upward travel, it will stop. If anything

interferes with the door’s downward travel (including

binding or unbalanced doors), it will reverse.

HOW AND WHEN TO ADJUST THE LIMITS

• If the door does not open completely but opens at

least ﬁ ve feet (1.5 m):

Increase up travel. Turn the UP limit adjustment screw

clockwise. One turn equals 2" (5 cm) of travel.

NOTE: To prevent the trolley from hitting the cover

protection bolt, keep a minimum distance of

2-4" (5 cm - 10 cm) between the trolley and the bolt.

• If door does not open at least 5 feet (1.5 m):

Adjust the UP (open) force as explained in Adjustment

Step 2.

• If the door does not close completely:

Increase down travel. Turn the DOWN limit adjustment

screw counterclockwise. One turn equals 2" (5 cm)

of travel.

If door still won't close completely and the trolley

bumps into the pulley bracket (page 4), try lengthening

the door arm (page 22) and decreasing the down limit.

• If the opener reverses in fully closed position:

Decrease down travel. Turn the DOWN limit adjustment

screw clockwise. One turn equals 2" (5 cm) of travel.

• If the door reverses when closing and there is no

visible interference to travel cycle:

If the opener lights are ﬂ ashing, the Safety Reversing

Sensors are either not installed, misaligned, or

obstructed. See Troubleshooting, page 19.

Test the door for binding: Pull the emergency release

handle. Manually open and close the door. If the door is

binding or unbalanced, call for a trained door systems

technician. If the door is balanced and not binding,

adjust the DOWN (close) force. See Adjustment Step 2.

Without a properly installed safety reversal system,

persons (particularly small children) could be

SERIOUSLY INJURED or KILLED by a closing garage

door.

• Incorrect adjustment of garage door travel limits

will interfere with proper operation of safety reversal

system.

• If one control (force or travel limits) is adjusted, the

other control may also need adjustment.

• After ANY adjustments are made, the safety reversal

system MUST be tested. Door MUST reverse on

contact with 1-1/2" high (3.8 cm) object (or 2x4 laid

ﬂ at) on ﬂ oor.

To prevent damage to vehicles, be sure fully open

door provides adequate clearance.

Cover Protection Bolt

2-4"

(5-10 cm)

Left Side

Panel

Limit Adjustment

Screws

ADJUSTMENT LABEL

ADJUSTMENT STEP 2

Adjust the Force

Force adjustment controls are located on the back panel

of the motor unit. Force adjustment settings regulate the

amount of power required to open and close the door.

If the forces are set too light, door travel may be

interrupted by nuisance reversals in the down direction

and stops in the up direction. Weather conditions can

affect the door movement, so occasional adjustment may

be needed.

The maximum force adjustment range is about 3/4 of a

complete turn. Do not force controls beyond that point.

Turn force adjustment controls with a screwdriver.

NOTE: If anything interferes with the door’s upward

travel, it will stop. If anything interferes with the door’s

downward travel (including binding or unbalanced doors),

it will reverse.

HOW AND WHEN TO ADJUST THE FORCES

1. Test the DOWN (close) force

• Grasp the door bottom when the door is about halfway

through DOWN (close) travel. The door should reverse.

Reversal halfway through down travel does not

guarantee reversal on a 1-1/2" (3.8 cm) obstruction.

See Adjustment Step 3, page 26. If the door is hard to

hold or doesn’t reverse, DECREASE the DOWN (close)

force by turning the control counterclockwise. Make

small adjustments until the door reverses normally.

After each adjustment, run the opener through a

complete cycle.

• If the door reverses during the down (close) cycle

and the opener lights aren’t ﬂ ashing, INCREASE

DOWN (close) force by turning the control clockwise.

Make small adjustments until the door completes a

close cycle. After each adjustment, run the opener

through a complete travel cycle. Do not increase the

force beyond the minimum amount required to close

the door.

2. Test the UP (open) force

• Grasp the door bottom when the door is about halfway

through UP (open) travel. The door should stop. If the

door is hard to hold or doesn’t stop, DECREASE UP

(open) force by turning the control counterclockwise.

Make small adjustments until the door stops easily

and opens fully. After each adjustment, run the opener

through a complete travel cycle.

• If the door doesn’t open at least 5 feet (1.5 m),

INCREASE UP (open) force by turning the control

clockwise. Make small adjustments until door opens

completely. Readjust the UP limit if necessary. After

each adjustment, run the opener through a complete

travel cycle.

Without a properly installed safety reversal system,

persons (particularly small children) could be

SERIOUSLY INJURED or KILLED by a closing garage

door.

• Too much force on garage door will interfere with

proper operation of safety reversal system.

• NEVER increase force beyond minimum amount

required to close garage door.

• NEVER use force adjustments to compensate for a

binding or sticking garage door.

• If one control (force or travel limits) is adjusted, the

other control may also need adjustment.

• After ANY adjustments are made, the safety reversal

system MUST be tested. Door MUST reverse on

contact with 1-1/2" high (3.8 cm) object (or 2x4 laid

ﬂ at) on ﬂ oor.

Back Panel

Force Adjustment

Controls

Antenna

FORCE ADJUSTMENT LABEL

Close ForceOpen Force

Without a properly installed safety reversal system,

persons (particularly small children) could be

SERIOUSLY INJURED or KILLED by a closing garage

door.

• Safety reversal system MUST be tested every month.

• If one control (force or travel limits) is adjusted, the

other control may also need adjustment.

• After ANY adjustments are made, the safety reversal

system MUST be tested. Door MUST reverse on

contact with 1-1/2" high (3.8 cm) object (or 2x4 laid

ﬂ at) on the ﬂ oor.

ADJUSTMENT STEP 3

Test the Safety Reversal System

TEST

• With the door fully open, place a 1-1/2" (3.8 cm) board

(or a 2x4 laid ﬂ at) on the ﬂ oor, centered under the

garage door.

• Operate the door in the down direction. The door must

reverse on striking the obstruction.

ADJUST

• If the door stops on the obstruction, it is not traveling

far enough in the down direction. Increase the DOWN

limit by turning the DOWN limit adjustment screw

counterclockwise 1/4 turn.

NOTE: On a sectional door, make sure limit adjustments

do not force the door arm beyond a straight up and

down position. See the illustration on page 22.

• Repeat the test.

• When the door reverses on the 1-1/2" (3.8 cm) board,

remove the obstruction and run the opener through

3 or 4 complete travel cycles to test adjustment.

• If the unit continues to fail the Safety Reverse Test, call

for a trained door systems technician.

IMPORTANT SAFETY CHECK:

Test the Safety Reverse System after:

• Each adjustment of door arm length, limits, or force

controls.

• Any repair to or adjustment of the garage door

(including springs and hardware).

• Any repair to or buckling of the garage ﬂ oor.

• Any repair to or adjustment of the opener.

ADJUSTMENT STEP 4

Test The Protector System

• Press the remote control push button to open the door.

• Place the opener carton in the path of the door.

• Press the remote control push button to close the door.

The door will not move more than an inch (2.5 cm),

and the opener lights will ﬂ ash.

The garage door opener will not close from a remote if the

indicator light in either sensor is off (alerting you to the

fact that the sensor is misaligned or obstructed).

If the opener closes the door when the safety reversing

sensor is obstructed (and the sensors are no more

than 6" (15 cm) above the ﬂ oor), call for a trained door

systems technician.

Without a properly installed safety reversing sensor,

persons (particularly small children) could be

SERIOUSLY INJURED or KILLED by a closing garage

door.

1-1/2" (3.8 cm) board

(or a 2x4 laid ﬂ at)

Safety Reversing Sensor Safety Reversing Sensor

OPERATION

IMPORTANT SAFETY INSTRUCTIONS

To reduce the risk of SEVERE INJURY or DEATH:

Using Your Garage Door Opener

Your Security✚

opener and hand-held remote control

have been factory-set to a matching code which changes

with each use, randomly accessing over 100 billion

new codes. Your opener will operate with up to eight

Security✚

remote controls and one Security✚

Keyless

Entry System. If you purchase a new remote, or if you

wish to deactivate any remote, follow the instructions in

the Programming section.

Activate your opener with any of the following:

• The Hand-Held Remote Control: Hold the large push

button down until the door starts to move.

• The Wall-Mounted Door Control: Hold the push button

or bar down until the door starts to move.

• The Keyless Entry (See Accessories): If provided with

your garage door opener, it must be programmed

before use. See Programming.

When the opener is activated (with the safety reversing

sensor correctly installed and aligned)

1. If open, the door will close. If closed, it will open.

2. If closing, the door will reverse.

3. If opening, the door will stop.

4. If the door has been stopped in a partially open

position, it will close.

5. If obstructed while closing, the door will reverse.

If the obstruction interrupts the sensor beam, the

opener lights will blink for ﬁ ve seconds.

6. If obstructed while opening, the door will stop.

7. If fully open, the door will not close when the beam is

broken. The sensor has no effect in the opening cycle.

If the sensor is not installed, or is misaligned, the door

won’t close from a hand-held remote. However, you can

close the door with the Door Control, the Outside Keylock,

or Keyless Entry, if you activate them until down travel

is complete. If you release them too soon, the door will

reverse.

The opener lights will turn on under the following

conditions: when the opener is initially plugged in; when

power is restored after interruption; when the opener is

activated.

They will turn off automatically after 4-1/2 minutes or

provide constant light when the Light feature on the

Multi-Function Door Control is activated. Bulb size is A19.

Bulb power is 100 watts maximum.

Security

✚

light feature: Lights will also turn on when

someone walks through the open garage door. With a

Multi-Function Door Control, this feature may be turned off

as follows: With the opener lights off, press and hold the

light button for 10 seconds, until the light goes on, then off

again. To restore this feature, start with the opener lights

on, then press and hold the light button for 10 seconds

until the light goes off, then on again.

WARNING

WARNING WARNING

1. READ AND FOLLOW ALL WARNINGS AND

INSTRUCTIONS.

2. ALWAYS keep remote controls out of reach of

children. NEVER permit children to operate or play with

garage door control push buttons or remote controls.

3. ONLY activate garage door when it can be seen clearly,

it is properly adjusted, and there are no obstructions

to door travel.

4. ALWAYS keep garage door in sight and away from

people and objects until completely closed. NO ONE

SHOULD CROSS THE PATH OF THE MOVING DOOR.

5. NO ONE SHOULD GO UNDER A STOPPED, PARTIALLY

OPEN DOOR.

6. If possible, use emergency release handle to disengage

trolley ONLY when garage door is CLOSED. Use

caution when using this release with the door open.

Weak or broken springs or unbalanced door could

result in an open door falling rapidly and/or

unexpectedly and increasing the risk of SEVERE

INJURY or DEATH.

7. NEVER use emergency release handle unless garage

doorway is clear of persons and obstructions.

8. NEVER use handle to pull garage door open or closed.

If rope knot becomes untied, you could fall.

9. If one control (force or travel limits) is adjusted, the

other control may also need adjustment.

10. After ANY adjustments are made, the safety reversal

system MUST be tested.

11. Safety reversal system MUST be tested every month.

Garage door MUST reverse on contact with 1-1/2"

high (3.8 cm) object (or a 2x4 laid ﬂ at) on the ﬂ oor.

Failure to adjust the garage door opener properly

increases the risk of SEVERE INJURY or DEATH.

12. ALWAYS KEEP GARAGE DOOR PROPERLY

BALANCED (see page 3). An improperly balanced

door may NOT reverse when required and could

result in SEVERE INJURY or DEATH.

13. ALL repairs to cables, spring assemblies and other

hardware, ALL of which are under EXTREME tension,

MUST be made by a trained door systems technician.

14. ALWAYS disconnect electric power to garage door

opener BEFORE making ANY repairs or removing

covers.

15.

SAVE THESE

INSTRUCTIONS.

Using the Wall-Mounted Door Control

THE MULTI-FUNCTION DOOR CONTROL

Press the push button to open or close

the door. Press again to reverse the door

during the closing cycle or to stop the

door while it's opening.

Light feature: Press the Light button to turn the opener

light on or off. It will not control the opener lights when

the door is in motion. If you turn it on and then activate the

opener, the light will remain on for 4-1/2 minutes. Press

again to turn it off sooner. The 4-1/2 minute interval can

be changed to 1-1/2, 2-1/2, or 3-1/2 minutes as follows:

Press and hold the Lock button until the light blinks (about

10 seconds). A single blink indicates that the timer is reset

to 1-1/2 minutes. Repeat the procedure and the light will

blink twice, resetting the timer to 2-1/2 minutes. Repeat

again for a 3-1/2 minute interval, etc., up to a maximum of

four blinks and 4-1/2 minutes.

Lock feature: Designed to prevent operation of the door

from hand-held remote controls. However, the door will

open and close from the Door Control, the Outside Keylock

and the Keyless Entry Accessories.

To activate, press and hold the Lock button for 2 seconds.

The push bar light will ﬂ ash as long as the Lock feature is

on.

To turn off, press and hold the Lock button again for 2

seconds. The push bar light will stop ﬂ ashing. The Lock

feature will also turn off whenever the “learn” button on

the motor unit panel is activated.

To Open the Door Manually

NOTICE: To comply with FCC and or Industry Canada (IC) rules,

adjustment or modifications of this receiver and/or transmitter are

prohibited, except for changing the code setting or replacing the

battery. THERE ARE NO OTHER USER SERVICEABLE PARTS.

Tested to Comply with FCC Standards FOR HOME OR OFFICE USE.

Operation is subject to the following two conditions: (1) this device may

not cause harmful interference, and (2) this device must accept any

interference received, including interference that may cause undesired

operation.

To prevent possible SERIOUS INJURY or DEATH:

• NEVER allow small children near batteries.

• If battery is swallowed, immediately notify doctor.

To reduce risk of ﬁ re, explosion or chemical burn:

• Replace ONLY with 3V2032 coin batteries.

• DO NOT recharge, disassemble, heat above 100° C

(212° F) or incinerate.

To prevent possible SERIOUS INJURY or DEATH from

a falling garage door:

• If possible, use emergency release handle to

disengage trolley ONLY when garage door is

CLOSED. Weak or broken springs or unbalanced door

could result in an open door falling rapidly and/or

unexpectedly.

• NEVER use emergency release handle unless garage

doorway is clear of persons and obstructions.

• NEVER use handle to pull door open or closed. If rope

knot becomes untied, you could fall.

Care of Your Opener

LIMIT AND FORCE ADJUSTMENTS:

Weather conditions may cause some

minor changes in door operation

requiring some re-adjustments,

particularly during the ﬁ rst year of

operation.

Pages 24 and 25 refer to the limit and force adjustments.

Only a screwdriver is required. Follow the instructions

carefully.

Repeat the safety reverse test (Adjustment Step 3,

page 26) after any adjustment of limits or force.

MAINTENANCE SCHEDULE

Every Month

• Manually operate door. If it is unbalanced or binding,

call a trained door systems technician.

• Check to be sure door opens and closes fully. Adjust

limits and/or force if necessary (see pages 24 and 25).

• Repeat the safety reverse test. Make any necessary

adjustments (see Adjustment Step 3).

Two Times a Year

• Check chain tension. Disconnect trolley ﬁ rst. Adjust if

necessary (see page 7).

Every Year

• Oil door rollers, bearings and hinges. The opener does

not require additional lubrication. Do not grease the

door tracks.

Every Three to Four Years

• Use a rag to wipe away the existing grease from the

garage door opener rail. Reapply a small layer of white

lithium grease to the rail.

THE REMOTE CONTROL BATTERY

The lithium battery should

produce power for up to

5 years.

To replace battery, use the

visor clip or screwdriver

blade to pry open the case as

shown. Insert battery positive

side up (+).

FORCE CONTROLS

LIMIT CONTROLS

Push

Button

Lock

Button

Light

Button

MANUAL DISCONNECT

POSITION

Trolley

Release

Arm

Emergency

Release

Handle

(Pull Down)

LOCKOUT POSITION

Trolley

Release

Arm

Emergency

Release

Handle

(Down and Back)

Dispose of old battery properly.

Replace the battery with only

3V2032 coin cell batteries.

Battery

positive

side up (+)

The door should be fully closed

if possible. Pull down on the

emergency release handle and lift the

door manually. To reconnect the door

to the opener, press the door control

push bar.

The lockout feature prevents

the trolley from reconnecting

automatically. Pull the emergency

release handle down and back

(toward the opener). The door can

then be raised and lowered manually

as often as necessary. To disengage

the lockout feature, pull the handle

straight down. The trolley will

reconnect on the next UP or DOWN

operation, either manually or by using

the door control or remote.

Having a Problem?

1. My door will not close and the light bulbs blink on

my motor unit: The safety reversing sensor must be

connected and aligned correctly before the garage door

opener will move in the down direction.

• Verify the safety reversing sensors are properly

installed, aligned and free of any obstructions.

Refer to Installation Step 10: Install The Protector

System

• Check diagnostic LED for ﬂ ashes on the motor unit

then refer to the Diagnostic Chart on the following

page.

2. My remotes will not activate the door:

• Verify your door control is not blinking. If it is

blinking, deactivate the Lock Mode following the

instructions for Using the Wall-Mounted Door

Control.

• Reprogram remotes following the programming

instructions. Refer to Programming.

• If remote will still not activate your door, check

diagnostic LED for ﬂ ashes on motor unit then refer

to Diagnostic Chart on the following page.

3. My door reverses for no apparent reason: Repeat

safety reverse test after adjustments to force or travel

limits. The need for occasional adjustment for the force

and limit settings is normal. Weather conditions in

particular can affect door travel.

• Manually check door for balance or any binding

problems.

• Refer to Adjustment Step 2, Adjust the Force.

4. My door reverses for no apparent reason after fully

closing and touching the ﬂ oor: Repeat safety reverse

test after adjustments to force or travel limits. The

need for occasional adjustment for the force and limit

settings is normal. Weather conditions in particular

can affect door travel.

• Refer to Adjustment Step 1, Adjust the UP and

DOWN Travel Limits. Decrease down travel by

turning down limit adjustment screw clockwise.

5. My lights will not turn off when door is open:

• The garage door opener is equipped with a security

light feature. This feature activates the light on

when the safety reversing sensor beam has been

obstructed. Refer to Operation section; Using the

Wall-Mounted Door Control, Light Feature.

6. My motor unit hums brieﬂ y:

• First verify that the trolley is against the stop bolt.

• Release the door from the opener by pulling the

Emergency Release Rope.

• Manually bring the door to a closed position.

• Loosen the chain by adjusting the outer nut 4 to 5

turns. This relieves the tension.

• Run the motor unit from the remote control or door

control. The trolley should travel towards the door

and stop. If the trolley re-engages with the door, pull

the Emergency Release Rope to disengage.

• Decrease the UP travel by turning the UP Travel

adjustment screw 2 full turns away from the arrow.

• Re-tighten the outer nut so the chain is a 1/2"

(13 mm) above the base of the rail. (When the door

is reconnected and closed, the chain will sag. This

is normal.)

• If the trolley does not move away from the bolt,

repeat the steps above.

Bell Wire

Safety Reversing

Sensor

Sending Eye Safety Reversing

Sensor (Amber Indicator Light)

Receiving Eye Safety Reversing

Sensor (Green Indicator Light)

“Learn”

Button

LED or

Diagnostic

LED

Your garage door opener is programmed with self-diagnostic

capabilities. The “Learn” button/diagnostic LED will ﬂ ash

a number of times then pause signifying it has found a

potential issue. Consult Diagnostic Chart below.

Diagnostic Chart

Symptom: One or both of the Indicator lights on the safety reversing sensors

do not glow steady.

• Inspect sensor wires for a short (staple in wire), correct wiring polarity (black/

white wires reversed), broken or disconnected wires, replace/attach as needed.

• Disconnect all wires from back of motor unit.

• Remove sensors from brackets and shorten sensor wires to 1-2 ft. (30-60 cm)

from back each of sensor.

• Reattach sending eye to motor unit using shortened wires. If sending eye indicator

light glows steadily, attach the receiving eye.

• Align sensors, if the indicator lights glow replace the wires for the sensors. If the

sensor indicator lights do not light, replace the safety reversing sensors.

Symptom: LED is not lit on door control.

• Inspect door control/wires for a short (staple in wire), replace as needed.

• Disconnect wires at door control, touch wires together. If motor unit activates,

replace door control.

• If motor unit does not activate, disconnect door control wires from motor unit.

Momentarily short across red and white terminals with jumper wire. If motor unit

activates, replace door control wires.

Symptom: Sending indicator light glows steadily, receiving indicator light is dim

or ﬂ ashing.

• Realign receiving eye sensor, clean lens and secure brackets.

• Verify door track is ﬁ rmly secured to wall and does not move.

Symptom: Motor has over heated; the motor unit does not operate or trolley

is stuck on stop bolt = Motor unit hums brieﬂ y; RPM Sensor = Short travel

6-8" (15-20 cm).

• Unplug unit to reset. Try to operate motor unit, check diagnostic code.

• If it is still ﬂ ashing 5 times and motor unit moves 6-8" (15-20 cm), replace

RPM sensor.

• If motor unit doesn’t operate, motor unit is overheated. Wait 30 minutes and retry.

If motor unit still will not operate replace logic board.

Symptom: Motor unit doesn’t operate.

• Replace logic board because motor rarely fails.

Motor Circuit Failure.

Replace Receiver.

Logic Board.

Motor overheated or

possible RPM sensor

failure. Unplug to reset.

Safety reversing sensors

slightly misaligned

(dim or ﬂ ashing LED).

Door control or

wire shorted.

Safety reversing sensors

wire shorted or black/

white wire reversed.

Safety reversing sensors

wire open (broken or

disconnected).

1 FLASH

2 FLASHES

3 FLASHES

4 FLASHES

5 FLASHES

6 FLASHES

Safety Reversing

Sensor

LED or

Diagnostic

LED

“Learn”

Button

Bell Wire

Diagnostics Located

on Motor Unit

Installed

Safety Reversing

Sensor

*3-Button Remotes

If provided with your garage door opener, the large

button is factory programmed to operate it. Additional

buttons on any Security✚

3-Button remote or

compact remote

can be programmed

to operate other

Security✚

garage

door openers.

To Erase All Codes From

Motor Unit Memory

To deactivate any unwanted remote,

ﬁ rst erase all codes:

Press and hold the “learn” button on

motor unit until the learn indicator

light goes out (approximately 6 seconds). All previous

codes are now erased. Reprogram each remote or

keyless entry you wish to use.

1. Press and hold the button on the

hand-held remote* that you wish to

operate your garage door.

2. While holding the remote button,

press and hold the LIGHT button on

the door control.

3. Continue holding both buttons while

you press the push bar on the door

control (all three buttons are held).

4. Release buttons when the motor unit

lights blink. It has learned the code.

If light bulbs are not installed, two

clicks will be heard.

1. Press and release the “learn” button

on the motor unit. The learn indicator

light will glow steadily for 30 seconds.

2. Within 30 seconds, press and hold the

button on the hand-held remote* that

you wish to operate your garage door.

3. Release the button when the motor

unit lights blink. It has learned the

code. If light bulbs are not installed,

two clicks will be heard.

PROGRAMMING

NOTICE: If this Security

✚

garage door opener is operated with a non-rolling code transmitter, the technical measure in

the receiver of the garage door opener, which provides security against code-theft devices, will be circumvented.

The owner of the copyright in the garage door opener does not authorize the purchaser or supplier of the non-rolling code

transmitter to circumvent that technical measure.

Your garage door opener has already been programmed at the factory to operate with your hand-held remote control.

The door will open and close when you press the large push button.

Below are instructions for programming your opener to operate with additional Security✚

315 MHz remote controls.

To Add or Reprogram a Hand-Held Remote Control

USING THE “LEARN” BUTTON USING THE DOOR CONTROL

1. Enter a four digit personal

identiﬁ cation number (PIN) of your

choice on the keypad. Then press and

hold enter.

2. While holding the ENTER button,

press and hold the LIGHT button on

the door control.

3. Continue holding the ENTER and

LIGHT buttons while you press the

push bar on the door control (all three

buttons are held).

4. Release buttons when the motor unit

lights blink. It has learned the code. If

light bulbs are not installed, two clicks

will be heard.

1. Press and release the “learn” button

on motor unit. The learn indicator

light will glow steadily for 30 seconds.

2. Within 30 seconds, enter a four digit

personal identiﬁ cation number (PIN)

of your choice on the keypad. Then

press and hold the ENTER button.

3. Release the button when the motor

unit lights blink. It has learned the

code. If light bulbs are not installed,

two clicks will be heard.

To Add, Reprogram or Change a Keyless Entry PIN

NOTE: Your new Keyless Entry must be programmed to operate your garage door opener.

USING THE “LEARN” BUTTON USING THE DOOR CONTROL

NOTE: This method requires two people if the Keyless

Entry is already mounted outside the garage.

To change an existing, known PIN

If the existing PIN is known, it may be changed by one

person without using a ladder.

1. Press the four buttons for the present PIN, then press

and hold the # button.

The opener light will blink twice. Release the # button.

2. Press the new 4-digit PIN you have chosen, then

press Enter.

The motor unit lights will blink once when the PIN has

been learned.

Test by pressing the new PIN, then press Enter. The door

should move.

To set a temporary PIN

You may authorize access by visitors or service people

with a temporary 4-digit PIN. After a programmed number

of hours or number of accesses, this temporary PIN

expires and will no longer open the door. It can be used

to close the door even after it has expired. To set a

temporary PIN:

1. Press the four buttons for your personal entry PIN

(not the last temporary PIN), then press and hold the

✽ button.

The opener light will blink three times. Release the

button.

2. Press the temporary 4-digit PIN you have chosen, then

press Enter.

The opener light will blink four times.

3. To set the number of hours this temporary PIN will

work, press the number of hours (up to 255), then

press ✽.

3. To set the number of times this temporary PIN will

work, press the number of times (up to 255), then

press #.

The opener light will blink once when the temporary PIN

has been learned.

Test by pressing the four buttons for the temporary PIN,

then press Enter. The door should move. If the temporary

PIN was set to a certain number of openings, remember

that the test has used up one opening. To clear the

temporary password, repeat steps 1-3, setting the number

of hours or times to 0 in step 3.

LOCK

LIGHT

One Button Close: Opener can be closed by pressing only the ENTER button if the one button close feature has been

activated. This feature has been activated at the factory. To activate or deactivate this feature press and hold buttons

1 and 9 for 10 seconds. The keypad will blink twice when the one button close is active. The keypad will blink four times

when one button close is deactivated.

REPAIR PARTS

Rail Assembly Parts

KEY PART

NO. NO. DESCRIPTION

1 4A1008 Master link kit

2 41A4813 Chain pulley bracket

3 41A3489 Complete trolley assembly

4 1707LM One-piece rail

1708LM 8 ft. (2.4 m) complete rail

1710LM 10 ft. (3 m) complete rail

5 41D3484 Full chain assembly

6 83A11-2 Rail grease

CEILING MOUNT ONLY

NOTICE

LOCK

LIGHT

Installation Parts

KEY PART

NO. NO. DESCRIPTION

1 41A5273-1 Multi-function door control panel

2 371LM Single-button remote control

3 10A20 3V2032 Lithium battery

4 29B137 Remote control visor clip

5 41A2828 Emergency release rope & handle

assembly

6 41B4494-1 2-Conductor bell wire,

white & white/red

7 41A4353 Header bracket with clevis pin &

fastener

8 41A5047 Door bracket with clevis pin &

fastener

9 178B35 Curved door arm section

10 178B34 Straight door arm section

11 41A5034 Safety reversing sensor kit (receiving

and sending eyes) with 3 ft. (.9 m)

2-conductor bell wire

12 41A5266-1 Safety reversing sensor brackets (2)

NOT SHOWN

41A2770-6 Installation hardware bag

(includes hardware listed on page 5)

114A4248 Owner’s manual

114A4248SP Owner’s manual - Spanish

Motor Unit Assembly Parts

KEY PART

NO. NO. DESCRIPTION

1 31D380 Sprocket cover

2 41C4220A Gear and sprocket assembly

Complete with: Spring washer,

thrust washer, retaining ring,

bearing plate, roll pins (2), drive

gear and worm gear, helical

gear with retainer and grease

3 41B4245 Line cord

4 41A5484-1 End panel with all labels

5 4A1344 Light socket

6 108D79 Lens

7 30B532 Capacitor - 1/2 HP

30B533 Capacitor - 1/3 HP

8 12A373 Capacitor bracket

9 41A3150 Terminal block with screws

10 41D3058 Universal replacement motor &

bracket assembly

Complete with: Motor, worm,

bracket, bearing assembly, RPM

sensor

KEY PART

NO. NO. DESCRIPTION

11 41A5525-24 Cover

12 41A2818 Limit switch drive & retainer

13 41D3452 Limit switch assembly

14 41A2822-1 Interrupter cup assembly

15 41C4398A RPM sensor assembly

16 41AC050-1M Receiver logic board

Complete with: Logic board,

end panel with all labels

17 41C5498 Low voltage wire harness

41C5497 High voltage wire harness

18 41D180-1 End panel with all labels

NOT SHOWN

41A2826 Motor shaft bearing kit

41A2825 Opener assembly hardware kit

(includes screws not designated

by a number in illustration)

LIMIT SWITCH ASSEMBLY

(Down)

Contact

Brown

Wire

Drive

Gear

Center Limit

Contact

(Up)

Contact

Yellow Wire

Grey Wire

ACCESSORIES

374LM

370LM

395LM

41A5281

1702LM

Outside Quick Release:

Required for a garage with NO access

door. Enables homeowner to open

garage door manually from outside by

disengaging trolley.

Remote Light Control:

Enables homeowner to turn on a lamp,

television or other appliance from their

car with their garage door opener remote

or from anywhere in their home with an

additional LiftMaster Security✚

remote.

Security✚

4-Button Remote Control :

Includes visor clip.

Wireless Door Control:

Push bar, light feature and auxiliary button.

Includes battery.

377LM

Extension Brackets:

(Optional) For safety reversing sensor

installation onto the wall or ﬂ oor.

Wireless Keyless Entry with Security✚

Enables homeowner to operate garage

door opener from outside by entering

a password on a specially designed

keyboard. Also can add a temporary

password for visitors or service persons.

This temporary password can be limited

to a programmable number of hours or

entries.

378LM

3-Button Mini-Remote Control with

Security✚

With key ring and fastening strip.

Garage Door Monitor:

Security for the largest door of your

home!

Tells you if your garage door is open or

closed. Monitors up to 4 garage doors by

adding additional sensor modules.

915LM 975LM

990LM

Laser Park Assist:

Laser enables homeowners to precisely

park vehicles in the garage.

Surge Protector:

The Garage Door Opener Surge Protector

is designed to protect LiftMaster

garage

door openers against damage from

lightning and power surges.

Security✚

3-Button Remote Control :

Includes visor clip.

373P

LIFTMASTER

ONE-YEAR LIMITED WARRANTY

FOUR YEAR MOTOR LIMITED WARRANTY

The Chamberlain Group, Inc. (“Seller”) warrants to the ﬁ rst retail purchaser of this product, for the residence in which this product is

originally installed, that it is free from defect in materials and/or workmanship for a period of one year from the date of purchase [and

that the motor is free from defect in materials and/or workmanship for a period of four years from the date of purchase]. The proper

operation of this product is dependent on your compliance with the instructions regarding installation, operation, maintenance and

testing. Failure to comply strictly with those instructions will void this limited warranty in its entirety.

If, during the limited warranty period, this product appears to contain a defect covered by this limited warranty, call 1-800-528-9131,

toll free, before dismantling this product. Then send this product, pre-paid and insured, to our service center for warranty repair. You

will be advised of shipping instructions when you call. Please include a brief description of the problem and a dated proof-of-purchase

receipt with any product returned for warranty repair. Products returned to Seller for warranty repair, which upon receipt by Seller are

conﬁ rmed to be defective and covered by this limited warranty, will be repaired or replaced (at Seller’s sole option) at no cost to you

and returned pre-paid. Defective parts will be repaired or replaced with new or factory-rebuilt parts at Seller’s sole option.

ALL IMPLIED WARRANTIES FOR THE PRODUCT, INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTIES OF

MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE LIMITED IN DURATION TO THE ONE-YEAR LIMITED

WARRANTY PERIOD SET FORTH ABOVE [EXCEPT THE IMPLIED WARRANTIES WITH RESPECT TO THE MOTOR, WHICH ARE

LIMITED IN DURATION TO THE FOUR-YEAR LIMITED WARRANTY PERIOD FOR THE MOTOR], AND NO IMPLIED WARRANTIES

WILL EXIST OR APPLY AFTER SUCH PERIOD. Some States do not allow limitations on how long an implied warranty lasts, so the

above limitation may not apply to you. THIS LIMITED WARRANTY DOES NOT COVER NON-DEFECT DAMAGE, DAMAGE CAUSED

BY IMPROPER INSTALLATION, OPERATION OR CARE (INCLUDING, BUT NOT LIMITED TO ABUSE, MISUSE, FAILURE TO PROVIDE

REASONABLE AND NECESSARY MAINTENANCE, UNAUTHORIZED REPAIRS OR ANY ALTERATIONS TO THIS PRODUCT), LABOR

CHARGES FOR REINSTALLING A REPAIRED OR REPLACED UNIT, REPLACEMENT OF BATTERIES AND LIGHT BULBS OR UNITS

INSTALLED FOR NON-RESIDENTIAL USE.

THIS LIMITED WARRANTY DOES NOT COVER ANY PROBLEMS WITH, OR RELATING TO, THE GARAGE DOOR OR GARAGE

DOOR HARDWARE, INCLUDING BUT NOT LIMITED TO THE DOOR SPRINGS, DOOR ROLLERS, DOOR ALIGNMENT OR HINGES.

THIS LIMITED WARRANTY ALSO DOES NOT COVER ANY PROBLEMS CAUSED BY INTERFERENCE. ANY SERVICE CALL THAT

DETERMINES THE PROBLEM HAS BEEN CAUSED BY ANY OF THESE ITEMS COULD RESULT IN A FEE TO YOU.

UNDER NO CIRCUMSTANCES SHALL SELLER BE LIABLE FOR CONSEQUENTIAL, INCIDENTAL OR SPECIAL DAMAGES ARISING

IN CONNECTION WITH USE, OR INABILITY TO USE, THIS PRODUCT. IN NO EVENT SHALL SELLER’S LIABILITY FOR BREACH

OF WARRANTY, BREACH OF CONTRACT, NEGLIGENCE OR STRICT LIABILITY EXCEED THE COST OF THE PRODUCT COVERED

HEREBY. NO PERSON IS AUTHORIZED TO ASSUME FOR US ANY OTHER LIABILITY IN CONNECTION WITH THE SALE OF THIS

PRODUCT.

Some States do not allow the exclusion or limitation of consequential, incidental or special damages, so the above limitation or

exclusion may not apply to you. This limited warranty gives you speciﬁ c legal rights, and you may also have other rights which vary

from state to state.

LIFTMASTER

SERVICE

IS ON CALL

OUR LARGE SERVICE ORGANIZATION SPANS

AMERICA AND CANADA

INSTALLATION AND SERVICE INFORMATION IS AS

NEAR AS YOUR TELEPHONE.

SIMPLY DIAL OUR TOLL FREE NUMBER:

1-800-528-9131

www.liftmaster.com

For professional installation, parts and service,

contact your local LIFTMASTER/CHAMBERLAIN

dealer. Look for him in the Yellow Pages, or call our

Service number for a list of dealers in your area.

HOW TO ORDER

REPAIR PARTS

Selling prices will be furnished on request or parts will

be shipped at prevailing prices and you will be billed

accordingly.

WHEN ORDERING REPAIR PARTS, ALWAYS GIVE

THE FOLLOWING INFORMATION:

• PART NUMBER

• PART NAME

• MODEL NUMBER

ADDRESS ORDERS TO:

THE CHAMBERLAIN GROUP, INC.

Technical Support Group

6050 S. Country Club Road

Tucson, Arizona 85706

SERVICE INFORMATION TOLL FREE NUMBER:

1-800-528-9131

LiftMaster 3255M Model Chain Drive Opener

Product's Documents

User Manual

Specifications

LiftMaster 3255M Questions and Answers