
TO WATCH VIDEOS GO TO:
tinyurl.com/lgh5x3h
Contents
Preparation ...................................... 2-5
Assembly .......................................6-10
Installation ..................................11-28
Install the Door Control ............21-22
Install the Protector System® ....23-26
Connect power .........................27-28
Adjustments .................................29-31
MyQ® Smartphone Control .................32
Operation .....................................33-39
Using your Garage Door Opener .....34
To Open the Door Manually ...........34
Motion Detecting
Control Panel ...........................35-36
Multi-Function Control Panel .... 37-38
Remote Control .............................38
Homelink® ...................................38
To Erase the Memory .....................39
Maintenance .....................................40
Troubleshooting ........................... 41-42
Accessories ........................................ 43
Warranty ........................................... 44
Repair Parts ................................. 45-47
Owner’s Manual
B550 • B750
Belt Drive
Garage Door Opener
FOR RESIDENTIAL USE ONLY
PRE-PROGRAMMED REMOTE CONTROL
INCLUDED
www.chamberlain.com
www.mychamberlain.com
Smart Garage Opener
• 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 garage door opener are required to ensure
safe operation.
• The model number label is located on the left side panel of your
garage door opener.
• This garage door opener is compatible with MyQ® and
Security+b2.0® accessories.
• DO NOT install on a one-piece door if using devices or features
providing unattended close. Unattended devices and features are
to be used ONLY with sectional doors.

2
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 strictaccordance with the instructions and warnings contained in
this manual.
Mechanical
Electrical
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 thisSignal Word on the following
pages,it will alert you to the possibilityof 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.
WARNING: This productcan expose you to chemicals including lead, which are known to the
State of California to cause cancer or birth defectsor other reproductive harm.For more
information go to www.P65Warnings.ca.gov.
Unattended Operation
The Timer-to-Close (TTC) feature, the MyQ
®
Smartphone Control app, and MyQ
®
Garage Door and
Gate Monitor are examples of unattended close and are to be used ONLY with sectional doors.Any
device or feature thatallowsthe door to close without being in the line of sight of the door is considered
unattended close. The Timer-to-Close (TTC) feature, the MyQ
®
Smartphone Control, and any other
MyQ
®
devices are to be used ONLY with sectional doors.
Check the Door
To prevent possible SERIOUSINJURYor DEATH:
l 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.
l NEVER try to loosen, move or adjust garage door, door springs,cables,pulleys, bracketsor
their hardware, ALLof which are under EXTREME tension.
l Disable ALLlocksand remove ALLropes connected to garage door BEFORE installation and
operating garage door opener to avoid entanglement.
l DO NOT install on a one-piece door if using devices or features providing unattended close.
Unattended devices and features are to be used ONLY with sectional doors.
To prevent damage to garage door and opener:
l ALWAYS disable locks BEFORE installing and operating the opener.
l ONLY operate garage door opener at 120V, 60Hz to avoid malfunction and damage.
Before you begin:
1. Disable locks and remove any ropes connected to the garage door.
2. Lift the door halfway up. Release the door. Ifbalanced, it should stay in
place, supported entirely by itssprings.
3. Raise and lower the door to check for binding or sticking. Ifyour door
binds,sticks,or is out of balance, call a trained door systems
technician.
4. Check the seal on the bottom of the door. Any gap between the floor
and the bottom of the door mustnot exceed 1/4 inch (6 mm).
Otherwise, the safetyreversal system may not work properly.
5. The opener should be installed above the center of the door. If there is
a torsion spring or center bearing plate in the wayof the header
bracket, itmaybe installed within 4feet (1.2 m) to the left or right of the
door center. See page 12.
Torsion
Spring
Extension
Spring
OR
Preparation

3
Test the Wi-Fi
®
Signal Strength in your garage
You will need a router with Wi-Fi and a smartphone or other mobile device. Make sure your mobile
device is connected to your Wi-Fi network. Hold your mobile device in the place where your garage
door opener will be installed and checkthe Wi-Fi signal strength.
Wi-Fi signal is weak.
The garage door opener will likely connect to your Wi-Fi
network. If not, try one of the options below.
No Wi-Fi signal. Try one of the following:
• Move your router closer to the garage door opener to
minimize interference from walls and other objects
• Buy a Wi-Fi range extender
• Buy a Chamberlain MyQ
®
Internet Gateway (CIGBU) see page 41
Check Signal Strength. If you see:
Wi-Fi signal is strong. You’re all set!
Install your new garage door opener.
Visit wifihelp.chamberlain.com for more details
See MyQ
®
Smartphone Control page 32 to connectyour garage door opener to your Wi-Fi network.
Additional Items You May Need:
Survey your garage area to see if you will need any of the following items:
l (2) 2X4 Pieces of wood : Maybe used to fasten the header bracket to the structural supports.
Also used to position the garage door opener during installation and for testing the safety
reversing sensors.
l Support bracket and fastening hardware: Must be used if you have a finished ceiling in your
garage.
l Extension brackets (MODEL 041A5281-1) or wood blocks: Depending upon garage
construction, extension brackets or wood blocks may be needed to install the safetyreversing
sensor.
l Fastening hardware: Alternate floor mounting of the safetyreversing sensor will require
hardware not provided.
l Door reinforcement: Required if you have a lightweight steel, aluminum,fiberglassor glass
panel door.
l Rail extension kit: Required if your garage door is more than 7 feet (2.13 m) high.
Tools Needed
3/16
7/16
1/2
5/32
5/16
5/8
9/16
1/4
7/16
Preparation

4
Carton Inventory
Save the carton and packing material until the installation and adjustment is complete. Instructions for
the accessories will be attached to the accessory and are not included in this manual. The images
throughout this manual are for reference only and your productmay look different.
Model Power Door Control Remote Control Wireless Keypad
B550 Med LiftPower System™ Multi-Function 3-button (2)
ü
B750 Plus Lift Power System™ Motion Detecting 3-button (2)
ü
A. Header bracket
B. Pulley
C. Door bracket
D. Curved door arm
E. Straight door arm
(Packaged inside front rail section)
F. Trolley
NOTE: Be sure to assemble the trolley before sliding onto rail.
G. Emergencyrelease rope and handle
H. Rail (1 front and 4 center sections)
I. Hanging brackets(2)
(Packaged inside the front rail section)
J. Garage door opener (motor unit)
K. Sprocket cover and screws
L. “U” bracket
M. Belt
N. Door control
O. Remote control
P. The ProtectorSystem
®
Safety reversing sensors with 2 conductor white and white/blackwire attached:Sending
Sensor (1), Receiving Sensor (1), and Safety Sensor Brackets(2)
NOT SHOWN
WirelessKeypad
White and red/white wire
Owner's manual
Hardware
N
A
B
C
H
K
J
OP
I
D
E
F
G
L
M
OR
Preparation

5
Hardware
ASSEMBLY INSTALLATION
DOOR CONTROL
Insulated Staples
(Not Shown)
Clevis Pin 5/16"x1-1/2"
Ring
Fastener (3)
Hex Bolt 5/16"-18x7/8" (4)
Self-Threading Screw
1/4"-14x5/8" (2)
Clevis Pin 5/16"x1" Clevis Pin 5/16"x1-1/4"
Carriage Bolt
1/4"-20x1/2" (2)
Wing Nut
1/4"-20 (2)
Lag Screw 5/16"-9x1-5/8" (4)
Screw 6ABx1" (2)
Drywall Anchors (2)
Screw 6-32x1" (2)
Hex Screw #8x3/8" (3)
(packed with the
sprocket cover)
Bolt
1/4"-20x1-3/4"
Lock Nut
1/4"-20
Bolt
Nut 3/8"
Lock Washer 3/8"
Master Link
Threaded
Shaft with
Spring
Trolley Nut
Lock Washer
5/16"-18 (4)
Nut
5/16"-18 (4)
Preparation

6
Assembly
STEP 1 Assemble the rail and install the trolley
To prevent INJURY from pinching, keep hands and fingers away from the jointswhile assembling the
rail.
To avoid installation difficulties, do not run the garage door opener until instructed to do so.
The front rail has a cut out “window” at the door end. The rail tab MUST be on top of the rail when
assembled.
1. Remove the straight door arm and hanging bracket packaged inside the front rail and set
aside for Installation Step 5 and 9. NOTE: To prevent INJURY while unpacking the rail
carefully remove the straight door arm stored within the rail section.
2. Align the rail sections on a flat surface as shown and slide the tapered ends into the larger
ones. Tabs along the side will lockinto place.
3. Place the motor unit on packing material to protect the cover, and restthe back end of the rail
on top. For convenience, put a support under the front end of the rail.
4. Asa temporary stop, insert a screwdriver into the hole in the second rail section from the motor
unit,as shown.
5. Check to be sure there are 4 plastic wear pads inside the inner trolley. If they became loose
during shipping, checkall packing material. Snap them backinto position as shown.
6. Slide the trolley assembly toward the screwdriver as shown.
7. Slide the rail onto the “U” bracket, until it reaches all the stops on the top and sides of the “U”
bracket.
Wear Pads
Front Rail Section
(TO DOOR)
“U” Bracket
(TO MOTOR UNIT)
Trolley
Rail Tab
On Top
Slide to stops
on top and sides
of “U” bracket
Screwdriver

7
Assembly
STEP 2 Fasten the rail to the motor unit
To avoid SERIOUS damage to garage door opener, use ONLY those bolts/fasteners mounted in the
top of the opener.
1. Insert a 1/4"-20 x 1-3/4" bolt into the cover protection bolt hole on the backend of the rail as
shown. Tighten securely with a 1/4"-20 locknut.DO NOT overtighten.
2. Remove the boltsfrom the top of the motor unit.
3. Use the carton to support the front end of the rail.
4. Place the “U” bracket,flat side down onto the motor unit and align the bracket holes with the
bolt holes.
5. Fasten the “U” bracket with the previouslyremoved bolts; DO NOT use any power tools.The
use of power tools may permanently damage the garage door opener.
Bolt
1/4"-20x1-3/4"
Lock Nut
1/4"-20
HARDWARE
“U” Bracket
Cover Protection
Bolt Hole
Bolt 1/4"-20x1-3/4"
Lock Nut 1/4"-20
Bolts (Mounted in the
garage door opener)

8
Assembly
STEP 3 Install the idler pulley
1. Lay the belt beside the rail, as shown.Grasp the end with the hooked trolley connector and
passapproximately 12" (30 cm) of belt through the window. Keep the ribbed side toward the
rail, and allow it to hang until Assembly Step 4.
2. Remove the tape from the idler pulley.The inside center should be pre-greased. Ifdry,
regrease to ensure proper operation.
3. Place the idler pulley into the window as shown.
4. Insert the idler bolt from the top through the rail and pulley.Tighten with a 3/8" lockwasher
and nut underneath the rail until the lockwasher is compressed.
5. Rotate the pulley to be sure it spins freely.
6. Locate the rail tab. The rail tab is between the idler bolt and the trolley in the front rail section.
Use a flathead screwdriver and liftthe rail tab until the tab is vertical (90º).
Rail
Idler Pulley
Grease Inside
Pulley
Bolt
Belt
Lock Washer
Nut
Bolt
Nut 3/8" Lock Washer 3/8"
HARDWARE
Trolley Connector
Rail Tab

9
Assembly
STEP 4 Install the belt
1. Pull the belt around the idler pulley and toward the trolley.The ribbed side mustcontact the
pulley.
2. Hook the trolley connector into the retaining slot on the trolley as shown (Figure 1).
3. With the trolley against the screwdriver, dispense the remainder of the belt along the rail
lengthtoward the motor unit and around the sprocket (Figure 2). The sprocket teeth must
engage the belt.
4. Check to make sure the belt is not twisted. Connectthe trolley threaded shaftwith the master
link(Figure 3).
l Push pins of master link bar through holes in end of belt and trolley threaded shaft.
l Push master link cap over pins and pastpin notches.
l Slide the closed end of the clip-on spring over one of the pins.Push the open end of the
clip-on spring onto the other pin.
5. Remove the spring trolley nut from the threaded shaft.
6. Insert the trolley threaded shaftthrough the hole in the trolley.
HARDWARE
Master Link
Figure 3
Threaded Shaft with Spring Trolley Nut
Threaded Shaft
Master Link
Sprocket
Figure 2
Figure 1
Trolley
Connector
Retaining
Slot

10
Assembly
STEP 5 Tighten the belt
1. Byhand, thread the spring trolley nut on the threaded shaftuntil it is finger tight againstthe
trolley.Do not use any tools.Remove the screwdriver.
2. Insert a flathead screwdriver tip into one of the nut ring slots and brace it firmlyagainstthe
trolley.
3. Tighten the spring trolley nut with an adjustable wrench or a 7/16" open end wrench about a
quarter turn until the spring releases and snaps the nut ring againstthe trolley.This sets the
spring to optimum belt tension.
Spring
Trolley Nut
Nut Ring Slot
Nut RingNut Ring
AFTER
1-1/4" (3.18 cm)
BEFORE
1" (2.5 cm)
STEP 6 Install the sprocket cover
To avoid possible SERIOUS INJURY to finger from moving garage door opener:
l ALWAYS keep hand clear of sprocket while operating opener.
l Securely attach sprocket cover BEFORE operating.
1. Position the sprocket cover over the sprocket as shown and fasten to the mounting plate with
8x3/8" hex screwsprovided.
You have now finished assembling your garage door opener. Please read the following warnings
before proceeding to the installation section.
Hex Screw #8x3/8"
(Packed with the sprocket cover)
HARDWARE
Hex Screw #8x3/8"
Sprocket Cover

11
Installation
IMPORTANT INSTALLATION INSTRUCTIONS
To reduce the risk of SEVERE INJURY or DEATH:
1. READ ANDFOLLOW ALL INSTALLATION WARNINGS ANDINSTRUCTIONS.
2. Install garage door opener ONLY on properly balanced and lubricated garage door. An
improperly balanced door may NOT reverse when required and could resultin 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 floor.
6. Mount the emergencyrelease within reach, but at least6 feet (1.83 m) above the floor and
avoiding contactwith 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:
l within sight of the garage door.
l out of reach of small children at a minimum height of 5feet (1.5m) above floors,landings,
steps or any other adjacent walking surface.
l away from ALL moving partsof the door.
10. Place entrapment warning label on wall next to garage door control.
11. Place manual release/safetyreverse testlabel 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" (3.8cm) high object(or a 2x4 laid flat) on the floor.
13. To avoid SERIOUS PERSONAL INJURY or DEATHfrom electrocution, disconnectALL electric
power BEFORE performing ANY service or maintenance.
14. DO NOTinstall on a one-piece door if using devices or features providing unattended close.
Unattended devices and features are to be used ONLY with sectional doors.

12
Installation
STEP 1 Determine the header bracket location
To prevent possible SERIOUS INJURY or DEATH:
l Header bracket MUST be RIGIDLY fastened to structural supporton header wall or ceiling,
otherwise garage door might NOT reverse when required. DO NOT install header bracket over
drywall.
l Concrete anchors MUST be used if mounting header bracket or 2x4 into masonry.
l NEVER try to loosen, move or adjust garage door, springs, cables,pulleys, brackets, or their
hardware, ALL of which are under EXTREME tension.
l 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.
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 13) 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 13.
3. Open your door to the highestpoint of travel as shown. Draw an intersecting horizontal line on
the header wall 2" (5 cm) above the high point:
l 2" (5 cm) above the high point for sectional door and one-piece door with track.
l 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: Ifthe total number of inches
exceeds the height available in your garage, use the maximum height possible, or refer to page 13 for
ceiling installation.
Header Wall
Vertical Centerline of Garage Door
2x4
Structural
Supports
Level
(Optional)
Unfinished
Ceiling
2x4
OPTIONAL CEILING MOUNT
FOR HEADER BRACKET
Sectional door with curved track
Header Wall
Track
2" (5 cm)
Highest
Point of
Travel
Door
One-piece door with horizontal track
Header Wall
Track
2" (5 cm)
Highest
Point of
Travel
Door
One-piece door without track:
jamb hardware
Header Wall
8" (20 cm)
Highest
Point of
Travel
Door
Jamb
Hardware
One-piece door without track:
pivot hardware
Header Wall
8" (20 cm)
Highest
Point of
Travel
Door
Pivot

13
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 bestfor your particular requirements. Do not install the header bracket
over drywall. If installing into masonry, use concrete anchors (not provided).
Lag Screw 5/16"-9x1-5/8"
HARDWARE
OPTION A WALL INSTALLATION
1. 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).
2. Mark the vertical setof bracket holes.Drill 3/16" pilot holes and fasten the bracket securely to a
structural support with the hardware provided.
OPTION B CEILING INSTALLATION
1. Extend the vertical centerline onto the ceiling as shown.
2. Center the bracket on the vertical mark,no more than 6" (15 cm) from the wall. Make sure the
arrow is pointing away from the wall. The bracket can be mounted flush againstthe ceiling
when clearance is minimal.
3. Mark the side holes.Drill 3/16" pilot holes and fasten bracket securely to a structural support
with the hardware provided.
UP
Wall Mounting
Holes
WALL INSTALLATION
CEILING INSTALLATION
Optional Mounting
Holes
Vertical
Centerline of
Garage Door
Header Wall
Header
Bracket
2x4
Structural
Support
Door
Spring
Garage Door
Highest Point
of Garage
Door Travel
Horizontal
Line
Lag
Screw
UP
Header Wall
Ceiling Mounting
Holes
Finished Ceiling
Vertical
Centerline of
Garage Door
Header
Bracket
6" (15 cm)
Maximum
Door Spring
Garage Door
Lag Screw

14
Installation
STEP 3 Attach the rail to the header bracket
1. Position the opener on the garage floor below the header bracket.Use packing material as a
protective base.
NOTE: Ifthe door spring is in the way, you will need help. Have someone hold the opener
securely on a temporary support to allow the rail to clear the spring.
2. Position the rail bracket againstthe header bracket.
3. Align the bracket holes and join with a clevis pin as shown.
4. Insert a ring fastener to secure.
HARDWARE
Clevis Pin
5/16"x1-1/2"
Ring Fastener
Clevis Pin
Ring Fastener
STEP 4 Position the garage door opener
To prevent damage to garage door, restgarage door opener rail on 2x4 placed on top section of
door.
1. Remove the packing material and lift the garage door opener onto a ladder.
2. Fully open the door and place a 2x4 (laid flat) under the rail. For one-piece doors without
tracks, lay the 2x4 on it's side.
NOTE: A 2x4 is ideal for setting the distance between the rail and the door. If the ladder is not tall
enough you will need help at this point. If the door hits the trolley when it is raised, pull the trolley
release arm down to disconnect the inner and outer trolley. Slide the outer trolley toward the garage
door opener. The trolley can remain disconnected until instructed.
Connected Disconnected
One-piece door
without tracks
2x4 2x4
All other
door types

15
Installation
STEP 5 Hang the garage door opener
To avoid possible SERIOUS INJURY from a falling garage door opener, fasten it SECURELY to
structural supportsof the garage. Concrete anchors MUST be used if installing ANY brackets into
masonry.
Hanging the garage door opener will vary depending on your garage. Below are three example
installations.Your installation may be different.For ALL installations the garage door opener MUST be
connected to structural supports. The instructions illustrate one of the examples below.
1. On finished ceilings,use the lag screwsto attach a support bracket (not provided) to the
structural supportsbefore installing the garage door opener.
2. Make sure the garage door opener is aligned with the header bracket.Measure the distance
from each side of the garage door opener to the support bracket.
3. Cut both pieces of the hanging bracket to required lengths.
4. Attach the end of each hanging bracket to the support bracket with appropriate hardware (not
provided).
5. Attach the garage door opener to the hanging brackets with the hex bolts,lockwashers,and
nuts.
6. Remove the 2x4 and manually close the door. If the door hits the rail, raise the header bracket.
Finished Ceiling
Lag Screw
1
2
3
Not
Provided
Not Provided
Not Provided
Hex Bolt
Nut
Lock
Washer
4 5
6
Lag Screw
Finished Ceiling
EXAMPLES
Unfinished Ceiling
HARDWARE
Hex Bolt
5/16"- 18x7/8"
Nut
5/16"-18
Lock Washer
5/16"-18
Lag Screw
5/16"-9x1-5/8"

16
Installation
STEP 6 Install the light bulbs
To prevent possible OVERHEATING of the end panel or light socket:
l Use ONLY A19 incandescent (100W maximum) or compact fluorescent (26W maximum) light
bulbs.
l DO NOT use incandescent bulbs larger than 100W.
l DO NOT use compactfluorescent light bulbs larger than 26W (100W equivalent).
l DO NOT use halogen bulbs.
l DO NOT use short neckor specialty light bulbs.
1. Pull on the top sides of the light lens and rotate the light lens down.
2. Insert an A19 incandescent (100W maximum) or compactfluorescent (26W,100W
equivalent) light bulb into the light socket.
3. Rotate the lens up to close.
NOTE: Do not use halogen, short neck, or specialty light bulbs as these may overheat the end panel or
light socket. Do not use LED bulbs as they may reduce the range or performance of your remote
controls.
or
or
STEP 7 Attach the emergency release rope and handle
To prevent possible SERIOUS INJURY or DEATH from a falling garage door:
l If possible, use emergencyrelease 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.
l NEVER use emergency release handle unlessgarage doorwayis clear of persons and
obstructions.
l NEVER use handle to pull door open or closed. Ifrope knot becomesuntied, you could fall.
1. Insert one end of the emergencyrelease rope through the handle. Make sure that “NOTICE”
is right side up. Secure with an overhand knot at least1" (2.5 cm) from the end of the rope to
prevent slipping.
2. Insert the other end of the emergencyrelease rope through the hole in the trolley release arm.
Mount the emergencyrelease within reach, but at least6 feet (1.83 m) above floor, avoiding
contact with vehicles to prevent accidental release and secure with a knot.
NOTE: Ifit is necessary to cut the emergency release rope, seal the cut end with a match or lighter to
prevent unraveling. Ensure the emergency release rope and handle are above the top of all vehicles to
avoid entanglement.

17
Installation
STEP 8 Install the door bracket
Fiberglass, aluminum or lightweight steel garage doors WILL REQUIRE reinforcement BEFORE
installation of door bracket. Contact the garage door manufacturer or installing dealer for opener
reinforcement instructions or reinforcement kit. Failure to reinforce the top section as required
according to the door manufacturer mayvoid the door warranty.
A horizontal and vertical reinforcement is needed for lightweight garage doors (fiberglass, aluminum,
steel, doors with glasspanel, etc.) (not provided). 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. Contact the garage door manufacturer or installing dealer for opener
reinforcement instructions or 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 the nextstep.
OPTION A SECTIONAL DOORS
1. Center the door bracket on the previouslymarked 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" (5-10cm) below the top edge of the door, OR
directly below any structural support acrossthe 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:
l Drill 3/16" fastening holes.Secure the door bracket using the two 1/4"-14x5/8" self-threading
screws. (Figure1)
l Alternately,use two 5/16"-18x2" bolts,lockwashers and nuts(not provided). (Figure2)
Metal, insulated or light weight factory reinforced doors:
l Drill 3/16" fastening holes.Secure the door bracket using the self-threading screws. (Figure3)
Wood doors:
l Use top and bottom or side to side door bracket holes.Drill 5/16" holes through the door and
secure bracket with 5/16"-18x2" carriage bolts, lock washers and nuts(not provided).
(Figure4)
NOTE: The 1/4"-14x5/8" self-threading screws are not intended for use on wood doors.
FIGURE 1
FIGURE 3 FIGURE 4
FIGURE 2
Vertical
Reinforcement
Vertical
Centerline
of Garage Door
UP
Door Bracket
Vertical Reinforcement
Vertical Reinforcement
Horizontal Reinforcement
Vertical Centerline
of Garage Door
Hardware
(not provided)
Door Bracket
UP
Vertical
Centerline
of Garage Door
UP
Vertical Centerline of
Garage Door
Hardware
(not provided)
UP
Inside Edge of Door or
Reinforcement Board
Self-Threading Screw
Self-Threading
Screw
HARDWARE
Self-Threading Screw
1/4"-14x5/8"

18
Installation
STEP 8 Install the door bracket (continued)
OPTION B ONE-PIECE DOORS
1. Center the door bracket on the top of the door, in line with the header bracket as shown.
2. Mark either the leftand right, or the top and bottom holes.
Metal Doors:
l Drill 3/16" pilot holes and fasten the bracket with the self-threading screwsprovided.
Wood Doors:
l Drill 5/16" holes and use 5/16"-18x2" carriage bolts, lockwashers 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.)
For a door with no exposed
framing, or for the optional
installation, use lag screws
5/16"x1-1/2" (not provided)
to fasten the door bracket.
Vertical
Centerline
of Garage
Door
Optional
Placement
of Door
Bracket
Door Bracket
Header Bracket
Header Wall
2x4 Support
(Finished Ceiling)
Door
Bracket
Top of Door
(Inside Garage)
Top Edge of
Door
Optional
Placement
Optional
Placement
Top Edge
of Door
Top of Door
(Inside Garage)
Door
Bracket
Hardware
(not provided)
Hardware
(not provided)
Metal Door Wood Door
Self-Threading

19
Installation
STEP 9 Connect the door arm to the trolley
Installation will vary according to the garage door type. Follow the instructions which apply to your door.
OPTION A SECTIONAL DOORS
IMPORTANT: The groove on the straight door arm MUST face away from the curved door arm.
1. Close the door.Disconnectthe trolley by pulling the emergencyrelease handle.
2. Attach the straight door arm to the outer trolley using the clevis pin. Secure with the ring
fastener.
3. Attach the curved door arm to the door bracket using the clevispin. Secure with the ring
fastener.
4. Bring arm sections together. Find two pairs of holes that line up and join sections.Selectholes
as far apart as possible to increase door arm rigidityand attach using the bolts,nuts, and lock
washers.
5. Pull the emergencyrelease handle toward the garage door opener until the trolley release
arm is horizontal.The trolley will re-engage automatically when the garage door opener is
activated.
NOTE: Ifthe holes in the curved door arm and the straight door arm do not align, reverse the straight
door arm, select two holes (as far apart as possible) and attach using bolts, nuts, and lock washers.If the
straight door arm is hanging down too far, you may cut 6 inches (15 cm) from the solid end.
HARDWARE
Hex Bolt 5/16"-18x7/8"
Nut 5/16"-18
Lock Washer
5/16" -18
Clevis Pin 5/16"x1" Clevis Pin 5/16"x1-1/4"
Ring Fastener
Lock Washer
Nut
Hex Bolt
Clevis Pin
5/16"x1-1/4"
Ring Fastener
Clevis Pin 5/16"x1"
Straight
Door Arm
(Groove
facing out)
Curved
Door Arm

20
Installation
STEP 9 Connect the door arm to the trolley (continued)
OPTION B ONE-PIECE DOORS
IMPORTANT: The groove on the straight door arm MUST face away from the curved door arm.
1. Close the door.Disconnectthe trolley by pulling the emergencyrelease handle.
2. Fasten the straight door arm and the curved door arm together to the longestpossible length
(with a 2 or 3 hole overlap) using the bolts, nuts,and lockwashers.
3. Attach the straight door arm to the door bracket using the clevispin. Secure with the ring
fastener.
4. Attach the curved door arm to the trolley using the clevis pin. Secure with the ring fastener.
5. Pull the emergencyrelease handle toward the garage door opener until the trolley release
arm is horizontal.
HARDWARE
Hex Bolt 5/16"-18x7/8"
Nut 5/16"-18
Lock Washer
5/16" -18
Clevis Pin 5/16"x1" Clevis Pin 5/16"x1-1/4"
Ring Fastener
One-Piece Door without Track
One-Piece Door with Track
Ring Fastener
Ring Fastener
Ring Fastener
Nut
Nut
Ring Fastener
Lock Washer
Lock Washer
Clevis Pin 5/16"x1-1/4"
Clevis Pin
5/16"x1-1/4"
Hex Bolts
Hex Bolts
Clevis Pin
5/16"x1"
Clevis Pin
5/16"x1"
Straight Door Arm
(Groove facing out)
Curved Door Arm

21
Installation
STEP 10 Install the door control
To prevent possible SERIOUS INJURY or DEATH from electrocution:
l Be sure power is NOT connected BEFORE installing door control.
l Connectdoor control ONLY to 12 VOLT low voltage wires.
To prevent possible SERIOUS INJURY or DEATH from a closing garage door:
l Install door control within sight of garage door, out of reach of small children at a minimum
height of 5feet (1.5m) above floors,landings,steps or any other adjacent walking surface, and
away from ALL moving partsof door.
l NEVER permit children to operate or play with door control push buttons or remote control
transmitters.
l Activate door ONLY when it can be seen clearly,is properly adjusted, and there are no
obstructions to door travel.
l ALWAYS keep garage door in sight until completely closed. NEVER permit anyone to cross
path of closing garage door.
INTRODUCTION
Older Chamberlain door controls and third partyproducts are not compatible. Install the door control
within sight of the door at a minimum height of5 feet (1.5 m) above floors,landings, steps or any other
adjacent walking surface, where small children cannot reach,and away from the moving partsof the
door. For gang box installations it is not necessary to drill holes or install the drywall anchors.Use the
existing holes in the gang box.
NOTE: Your product may look different than the illustrations.
Screw
6ABx1" (2)
Drywall
Anchors (2)
Screw
6-32x1" (2)
HARDWARE
1. Strip 7/16 inch (11 mm) of insulation from one end of the wire and separate the wires.
2. Connectone wire to each of the two screws on the backof the door control. The wires can be
connected to either screw. Ifyour garage is pre-wired for the door control choose any two
wires to connect,note which wires are used so the correct wires are connected to the garage
door opener in a later step.
3. Mark the location of the bottom mounting hole and drill a 5/32 inch hole.
4. Install the bottom screw, allowing 1/8 inch (3 mm) to protrude from the wall.
5. Position the bottom hole of the door control over the screw and slide down into place.
6. Lift the push bar up and mark the top hole.
7. Remove the door control from the wall and drill a 5/32 inch hole for the top screw.
8. Position the bottom hole of the door control over the screw and slide down into place. Attach
the top screw.
7/16" (11 mm)
Wall
1
2 3
4-5 6
8
7
DRYWALL
GANG BOX
6ABx1"
6-32x1"
Drywall Anchor
DRYWALL GANG BOX
6ABx1"
6-32x1"
Drywall Anchor

22
Installation
STEP 11 Wire the door control to the garage door opener
1. Run the white and red/white wire from the door control to the garage door opener. Attach the
wire to the wall and ceiling with the staple (not applicable for gang box or pre-wired
installations).Do not pierce the wire with the staple as this may cause a short or an open
circuit.
2. Strip 7/16 inch (11 mm) of insulation from the end of the wire near the garage door opener.
3. Connectthe wire to the red and white terminals on the garage door opener. If your garage is
pre-wired make sure you use the same wires that are connected to the door control. To insert
or release wires from the terminal, push in the tab with screwdriver tip.
RED
WHITE
WHITE
GREY
7/16" (11 mm)
2
3
1
HARDWARE
Insulated Staple (Not Shown)
Staple
STEP 12 Attach the warning labels
1. Attach the entrapment warning label on the wall near the door control with tacksor staples.
2. Attach the manual release/safetyreverse testlabel in a visible location on the inside of the
garage door.

23
Installation
STEP 13 Install the Protector System
®
Be sure power is NOT connected to the garage door opener BEFORE installing the safetyreversing
sensor.
To prevent SERIOUS INJURY or DEATH from closing garage door:
l Correctly connect and align the safetyreversing sensor. This required safety device MUST NOT
be disabled.
l Install the safetyreversing sensor so beam is NO HIGHER than 6" (15 cm) above garage floor.
IMPORTANT INFORMATION ABOUT THE SAFETY REVERSING SENSORS
The safety reversing sensors must be connected and aligned correctly before the garage door
opener will move in the down direction.
The sending sensor (with an amber LED) transmitsan invisible light beam to the receiving sensor (with
a green LED).If an obstruction breaksthe light beam while the door is closing, the door will stop and
reverse to the full open position, and the garage door opener lightswill flash 10 times.
NOTE: For energy efficiency the garage door opener will enter sleep mode when the door is fully
closed. The sleep mode shuts the garage door opener down until activated. The sleep mode is
sequenced with the garage door opener light bulb; as the light bulb turns off the sensor LEDs will turn
offand whenever the garage door opener lights turn on the sensor LEDs will light. The garage door
opener will not go into the sleep mode until the garage door opener has completed 5 cycles upon
power up.
When installing the safety reversing sensors check the following:
l Sensors are installed inside the garage, one on either side of the door.
l Sensors are facing each other with the lenses aligned and the receiving sensor lens does not
receive direct sunlight.
l Sensors are no more than 6 inches (15 cm) above the floor and the light beam is
unobstructed.
Safety Reversing Sensor
6" (15 cm) max. above floor
Invisible Light Beam
Protection Area
Facing the door from inside the garage
Carriage Bolt
1/4"-20 x 1/2"
Wing Nut
1/4"-20
HARDWARE
The safety reversing sensors can be attached to the door track,the wall, or the floor. The sensors should
be no more than 6 inches (15 cm) above the floor. If the door track will not support the sensor bracket a
wall installation is recommended. Choose one of the following installations.
OPTION A DOOR TRACK INSTALLATION
1. Slide the curved armsof the sensor bracket around the edge of the door track.Snap into
place so that the sensor bracket is flush againstthe track.
2. Slide the carriage bolt into the sloton each sensor.
3. Insert the bolt through the hole in the sensor bracket and attach with the wing nut.The lenses
on both sensors should point toward each other. Make sure the lens is not obstructed by the
sensor bracket.
No more
than 6 inches
(15 cm)
Carriage Bolt
Wing Nut
1
2
3

24
Installation
STEP 13 Install the Protector System
®
(continued)
OPTION B WALL INSTALLATION
If additional clearance is needed an extension bracket (not provided) or wood blocks can be used.
Make sure each bracket has the same amount of clearance so they will align correctly.
1. Position the sensor bracket againstthe wall with the curved armsfacing the door. Make sure
there is enough clearance for the beam to be unobstructed. Mark holes.
2. Drill 3/16 inch pilot holes for each sensor bracket and attach the sensor bracketsto the wall
using lag screws (not provided).
3. Slide the carriage bolt into the sloton each sensor.
4. Insert the bolt through the hole in the sensor bracket and attach with the wing nut.The lenses
on both sensors should point toward each other. Make sure the lens is not obstructed by the
sensor bracket.
Lens
Carriage
Bolt
(Not provided)
No more than
6 inches (15 cm)
1 2
(Not provided)
Wing Nut
3 4
OPTION C FLOOR INSTALLATION
Use an extension bracket (not provided) or wood blockto raise the sensor bracket if needed.
1. Carefully measure the position of both sensor brackets so they will be the same distance from
the wall and unobstructed.
2. Attach the sensor bracketsto the floor using concrete anchors (not provided).
3. Slide the carriage bolt into the sloton each sensor.
4. Insert the bolt through the hole in the sensor bracket and attach with the wing nut.The lenses
on both sensors should point toward each other. Make sure the lens is not obstructed by the
sensor bracket.
(Not provided)
I
e
l
l
1 2
Carriage Bolt
Wing Nut
3 4

25
Installation
STEP 14 Wire the Safety Reversing Sensors
If your garage already has wires installed for the safetyreversing sensors,proceed to page 26.
OPTION A INSTALLATION WITHOUT PRE-WIRING
1. Run the wire from both sensors to the garage door opener. Attach the wire to the wall and
ceiling with the staples.
2. Strip 7/16 inch (11 mm) of insulation from each set of wires.Separate the wires.Twist the white
wires together. Twist the white/blackwires together.
3. Insert the white wires into the white terminal on the garage door opener. Insert the white/black
wires into the grey terminal on the garage door opener. To insert or remove the wires from the
terminal, push in the tab with a screwdriver tip.
Staple
7/16" (11 mm)
WHITE
WHITE
GREY
RED
1
2
3
HARDWARE
Insulated Staple (Not Shown)

26
Installation
STEP 14 Wire the Safety Reversing Sensors (continued)
OPTION B PRE-WIRED INSTALLATION
1. Cut the end of the safety reversing sensor wire, making sure there is enough wire to reach the
pre-installed wires from the wall.
2. Separate the safety reversing sensor wires and strip 7/16 inch (11 mm) of insulation from each
end. Choose two of the pre-installed wires and strip 7/16 inch (11 mm) of insulation from each
end. Make sure that you choose the same color pre-installed wires for each sensor.
3. Connectthe pre-installed wires to the sensor wires with wire nutsmaking sure the colors
correspond for each sensor. For example, the white wire would connectto the yellow wire and
the white/blackwire would connectto the purple wire.
4. Atthe garage door opener, strip 7/16 inch (11 mm) of insulation from each end of the wires
previously chosen for the safety reversing sensors. Twist the like-colored wires together.
5. Insert the wires connected to the white safetysensor wires to the white terminal on the garage
door opener. Insert the wires that are connected to the white/blacksafety sensor wires to the
grey terminal on the garage door opener.
Safety reversing
sensor wires
Pre-installed
wires
White
White/Black
Yellow (for example)
Purple (for example)
Wire nuts (not provided)
Pre-installed wires
Safety reversing
sensor wires
1
3
4
7/16" (11 mm)
2
Purple
Yellow
5
7/16" (11 mm)
Yellow
Purple
To insert or remove the wires from the terminal,
push in the tab with a screwdriver tip.

27
Installation
STEP 15 Connect power
To prevent possible SERIOUS INJURY or DEATH from electrocution or fire:
l Be sure power is NOT connected to the opener, and disconnectpower to circuit BEFORE
removing cover to establish permanent wiring connection.
l Garage door installation and wiring MUST be in compliance with ALL local electrical and
building codes.
l NEVER use an extension cord, 2-wire adapter, or change plug in ANY way to make it fitoutlet.
Be sure the opener is grounded.
To avoid installation difficulties, 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 fitinto a grounding type outlet. Ifthe plug doesn’t fitinto the outlet you
have, contact a qualified electrician to install the proper outlet.
THERE ARE TWO OPTIONS FOR CONNECTING POWER:
OPTION A TYPICAL WIRING
1. Plug in the garage door opener into a grounded outlet.
2. DO NOT run garage door opener at this time.
OPTION B PERMANENT WIRING
If permanent wiring is required by your local code, refer to the following procedure. To make a
permanent connection through the 7/8 inch hole in the top of the motor unit (according to local
code):
1. Remove the motor unit cover screwsand set the cover aside.
2. Remove the attached 3-prong cord.
3. Connectthe 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.
4. Reinstall the cover.
Ground Tab
Green Ground Screw
Ground Wire
White Wire
Black Wire

28
Installation
STEP 16 Aligning the safety reversing sensors
The door will not close if the sensors have not been installed and aligned correctly.
When the light beam is obstructed or misaligned while the door is closing, the door will reverse and the
garage door opener lights will flash ten times.Ifthe door is already open, it will not close.
1. Check to make sure the LEDsin both sensors are glowing steadily.The LEDsin both sensors
will glow steadily if they are aligned and wired correctly.
The sensors can be aligned by loosening the wing nuts,aligning the sensors,and tightening the wing
nuts.
Green LED
Amber LED
Wing Nut
SENDING SENSOR
RECEIVING SENSOR
(invisible light beam)
If the receiving sensor is in direct
sunlight, switch it with sending sensor so
it is on the opposite side of the door.
IF THE AMBER LED ON THE SENDING SENSOR IS NOT GLOWING:
1. Make sure there is power to the garage door opener.
2. Make sure the sensor wire is not shorted/broken.
3. Make sure the sensor has been wired correctly:white wires to white terminal and white/black
wires to grey terminal.
RED
WHITE
WHITE
GREY
3
2
1
IF THE GREEN LED ON THE RECEIVING SENSOR IS NOT GLOWING:
1. Make sure the sensor wire is not shorted/broken.
2. Make sure the sensors are aligned.
1
2
STEP 17 Ensure the door control is wired correctly
If the door control has been installed and wired correctly,the command LED on the Multi-Function
Control Panel or Motion Detecting Control Panel will blink.

29
Adjustments
Introduction
Without a properly installed safety reversal system,persons (particularly small children) could be
SERIOUSLY INJURED or KILLED by a closing garage door.
l Incorrect adjustment of garage door travel limits will interfere with proper operation of safety
reversal system.
l After ANY adjustmentsare made, the safety reversal system MUSTbe tested. Door MUST
reverse on contact with 1-1/2" (3.8 cm) high object (or 2x4 laid flat) on floor.
To prevent damage to vehicles, be sure fully open door provides adequate clearance.
Your garage door opener is designed with electronic controls to make setup and adjustmentseasy. The
adjustmentsallow you to program where the door will stop in the open (UP) and close (DOWN)
position. The electronic controls sense the amount of force required to open and close the door. The
force is adjusted automatically when you program the travel.
NOTE: Ifanything interferes with the door’s upward travel it will stop. If anything interferes with the
door’s downward travel, it will reverse.
UP (Open)
DOWN (Close)
One-Piece Doors Only
When setting the UP travel for a one-piece door ensure that the door does not slant backwards when
fully open (UP). Ifthe door is slanted backwards this will cause unnecessary bucking and/or jerking
when the door is opening or closing.
Correct
Incorrect
Programming Buttons
The programming buttons are located on the left side panel of the garage door opener and are used to
program the travel. While programming, the UP and DOWN buttons can be used to move the door as
needed.
UP Button
Adjustment Button
DOWN Button
PROGRAMMING BUTTONS

30
Adjustments
STEP 1 Program the Travel
Without a properly installed safety reversal system,persons (particularly small children) could be
SERIOUSLY INJURED or KILLED by a closing garage door.
l Incorrect adjustment of garage door travel limits will interfere with proper operation of safety
reversal system.
l After ANY adjustmentsare made, the safety reversal system MUSTbe tested. Door MUST
reverse on contact with 1-1/2" (3.8 cm) high object (or 2x4 laid flat) on floor.
While programming, the UP and DOWNbuttons can be used to move the door as needed.
1. Pressand hold the Adjustment Button until the UP Button begins to flash and/or a beep is
heard.
2. Pressand hold the UP Button until the door is in the desired UP position.
3. Once the door is in the desired UP position pressand release the Adjustment Button. The
garage door opener lights will flash twice and the DOWNButton will begin to flash.
IMPORTANT NOTE: For one-piece door installations refer to page 29.
4. Pressand hold the DOWN button until the door is in the desired DOWNposition.
5. Once the door is in the desired DOWN position pressand release the AdjustmentButton. The
garage door opener lights will flash twice and the UP Button will begin to flash.
6. Pressand release the UP Button. When the door travelsto the programmed UP position, the
DOWN Button will begin to flash.
7. Pressand release the DOWNButton. The door will travel to the programmed DOWN position.
Programming is complete.
* Ifthe garage door opener lights are flashing 5 times during the steps for Program the Travel, the
programming has timed out.Ifthe garage door opener lights are flashing 10 times during the steps for
Program the Travel, the safetyreversing sensors are misaligned or obstructed (refer to page 28). When
the sensors are aligned and unobstructed, cycle the door through a complete up and down cycle using
the remote control or the UP and DOWNbuttons. Programming is complete. Ifyou are unable to
operate the door up and down, repeat the steps for Programming the Travel.
UP Button
Adjustment Button
DOWN Button
PROGRAMMING BUTTONS
1 2
3
4 5
6 7
To watch a video, go to tinyurl.com/lkwbnhj

31
Adjustments
STEP 2 Test the Safety Reversal System
Without a properly installed safety reversal system,persons (particularly small children) could be
SERIOUSLY INJURED or KILLED by a closing garage door.
l Safety reversal system MUSTbe tested every month.
l After ANY adjustmentsare made, the safety reversal system MUSTbe tested. Door MUST
reverse on contact with 1-1/2" (3.8 cm) high object (or 2x4 laid flat) on the floor.
1. With the door fully open, place a 1-1/2 inch (3.8 cm) board (or a 2x4 laid flat) on the floor,
centered under the garage door.
2. Pressthe remote control push button to close the door. The door MUST reverse when it
makes contact with the board.
If the door stops and does not reverse on the obstruction,increase the down travel (refer to Adjustment
Step 1). Repeat the test.When the door reverses upon contact with the 1-1/2 inch board, remove the
board and open/close the door 3 or 4 times to testthe adjustment.Ifthe garage door opener continues
to fail the safetyreversal test,call a trained door systems technician.
1 2
STEP 3 Test the Protector System
®
Without a properly installed safety reversing sensor, persons (particularly small children) could be
SERIOUSLY INJURED or KILLED by a closing garage door.
1. Open the door. Place the garage door opener carton in the path of the door.
2. Pressthe remote control push button to close the door. The door will not move more than an
inch (2.5 cm), and the garage door opener lightswill flash 10 times.
The garage door opener will not close from a remote control if the LED in either safety reversing sensor
is off (alerting you to the fact that the sensor is misaligned or obstructed). Ifthe garage door opener
closesthe door when the safetyreversing sensor is obstructed (and the sensors are no more than
6inches [15 cm] above the floor), call for a trained door systems technician.
1
2

32
MyQ
®
Smartphone Control
Get Connected
…and control your garage door opener with the MyQ
®
App.
You will need:
l A smartphone or tablet
l Broadband Internet connection
l A strong Wi-Fi signal (2.4 Ghz, 802.11b/g/n required) in the garage, see page 3
l Password for your home network
l MyQ
®
serial number located on the garage door opener
1. ACTIVATE "Wi-Fi LEARN" MODE
Press and release the yellow LEARNbutton on the garage door opener 3 times. The garage door
opener will beep once and a blue light will flash.You have 20 minutesto complete the connection
process.
“beep”
Blue LED
2. CONNECT TO THE MyQ
®
Wi-Fi NETWORK
On your mobile device, go to Settings > Wi-Fi,and selectthe network with the "MyQ-" prefix.
3. CONNECT THE GARAGE DOOR OPENER TO YOUR HOME Wi-Fi NETWORK
Launch the web browser (such as Safari or Chrome) on your mobile device and go to
"setup.myqdevice.com".Follow the on-screen prompts to add the garage door opener to your home
Wi-Fi network.
4. SETUP YOUR MyQ
®
ACCOUNT
Download the MyQ
®
app from the App Store
SM
or Google Play™ store. Sign up for your MyQ
®
account
and add the MyQ
®
serial number to your account.
Google Play
App Store
or
Congratulations you've successfully completed the setup. Enjoy MyQ
®
Smartphone Control!
In addition to controlling your garage door opener you can control your house lighting with additional
MyQ
®
accessories,see page 43.
NOTES:
To erase the Wi-Fi settings, see page 39.
To learn more go to wifihelp.chamberlain.com.

33
IMPORTANT INSTALLATION INSTRUCTIONS
To reduce the risk of SEVERE INJURY or DEATH:
1. READ ANDFOLLOW 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 PATHOF THE MOVING DOOR.
5. NO ONE SHOULD GO UNDER A STOPPED,PARTIALLY OPENED DOOR.
6. Ifpossible, use emergency release handle to disengage trolley ONLY when garage door is
CLOSED. Use caution when using thisrelease 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 emergencyrelease handle unlessgarage doorway is clear of persons and
obstructions.
8. NEVER use handle to pull garage door open or closed. If rope knot becomesuntied, you could
fall.
9. After ANY adjustmentsare made, the safetyreversal system MUSTbe tested.
10. Safety reversal system MUST be tested every month. Garage door MUST reverse on contact
with 1-1/2" (3.8 cm) high object(or a 2x4 laid flat) on the floor. Failure to adjustthe garage
door opener properly increases the risk of SEVERE INJURY or DEATH.
11. ALWAYS KEEP GARAGE DOOR PROPERLY BALANCED(see page 2). An improperly
balanced door mayNOT reverse when required and could resultin SEVERE INJURY or
DEATH.
12. 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.
13. ALWAYS disconnectelectric power to garage door opener BEFORE making ANY repairs or
removing covers.
14. This operator system is equipped with an unattended operation feature. The door could move
unexpectedly. NO ONE SHOULD CROSS THE PATH OF THE MOVING DOOR.
15. DO NOTinstall on a one-piece door if using devices or features providing unattended close.
Unattended devices and features are to be used ONLY with sectional doors.
16. SAVE THESE INSTRUCTIONS.
Operation

34
Operation
Using your Garage Door Opener
l The garage door opener can be activated with a wall-mounted door control,remote control,
wirelesskeylessentry, MyQ
®
Smartphone Control app or MyQ
®
Garage Door Monitor. When
the door is closed and the garage door opener is activated the door will open. Ifthe door
senses an obstruction or is interrupted while opening the door will stop. When the door is in
any position other than closed and the garage door opener is activated the door will close. If
the garage door opener senses an obstruction while closing, the door will reverse.If the
obstruction interrupts the sensor beam the garage door opener lights will blink 10 times.Ifthe
door is fully open, and the safetyreversing sensors are not installed, or are misaligned, the
door will not close from a remote control,TTC,or the MyQ
®
Smartphone Control app.
However, you can close the door by holding the button on the door control or the ENTER
button on the keylessentryuntil the door is fully closed.
l The garage door opener light bulbs will turn on when the opener is initially plugged in; power
is restored after interruption, or when the garage door opener is activated. The lightswill turn
offautomatically after 4-1/2 minutes. The lightswill turn on when someone enters through the
open garage door and the safetyreversing sensor infrared beam is obstructed, see page 35
(Motion Detecting Control Panel) or see page 37 (Multi-Function Control Panel). Use an
incandescent A19 light bulb (100 watt maximum) or for maximum energy efficiencya 26W
(100W equivalent) compact fluorescent light (CFL) bulb. NOTE: Do not use halogen, short
neck, or specialty light bulbs as these may overheat the end panel or light socket. Do not use
LED bulbs as they may reduce the range or performance of your remote controls.
To Open the Door Manually
To prevent possible SERIOUS INJURY or DEATH from a falling garage door:
l If possible, use emergencyrelease 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.
l NEVER use emergency release handle unlessgarage doorwayis clear of persons and
obstructions.
l NEVER use handle to pull door open or closed. Ifrope knot becomesuntied, you could fall.
DISCONNECT THE TROLLEY
1. The door should be fully closed if possible.
2. Pull down on the emergencyrelease handle so the trolley release arm snaps to the vertical
position. The door can now be raised and lowered as often as necessary.
TO RE-CONNECT THE TROLLEY
1. Pull the emergencyrelease handle toward the garage door opener so the trolley release arm
snaps to the horizontal position. The trolley will reconnecton the next UP or DOWN operation,
either manually or by using the door control or remote control.

35
Operation
Motion Detecting Control Panel
SYNCHRONIZE THE DOOR CONTROL: To synchronize the door control to the garage door opener,
press the push bar until the garage door opener activates (it may take up to 3 presses).Testthe door
control by pressing the push bar; each pressof the push bar will activate the garage door opener.
ON (TTC)
OFF (TTC)
Command LED
Motion Sensor Switch
LIGHT
Button
HOLD OPEN
Button(TTC)
Motion Sensor
Push Bar
1, 5, and
10 Minute
TTC LED
LEARN Button
LOCK Button
PUSH BAR: Pressthe push bar to open or close the door.
LIGHT BUTTON: Press the LIGHT button to turn the garage door opener lightson or off. When the
lights are turned on they will stay on until the LIGHTbutton is pressed again, or until the garage door
opener is activated. Once the garage door opener is activated the lights will turn offafter the specified
period of time (the factory default is 4-1/2 minutes). The LIGHTbutton will not control the lightswhen the
door is in motion. The Light Feature will turn on the light on the garage door opener when someone
enters through the open garage door and the safetyreversing sensor infrared beam is obstructed.
To change the amount of time the lights stay on:
Press and hold the LOCK button (approximately 10 seconds) until the garage door opener lightsflash.
The time interval is indicated by the number of timesthe garage door opener lightsflash:
l 1 flash is 1-1/2 minutes
l 2 flashes is 2-1/2 minutes
l 3 flashes is 3-1/2 minutes
l 4 flashes is 4-1/2 minutes
To cycle through the time intervals repeat the step above. Ifthe push bar LED is continuously blinking,
the LOCK feature needs to be turned off.
To turn the Light feature on or off(Factory default is On):
Turn OFF:
1. Close the garage door.
2. Start with the garage door opener lights"OFF".
3. Pressand hold the LIGHTbutton (approximately 10 seconds) until the garage door opener
lights turn off, then on again.
Turn ON:
1. Close the garage door.
2. Start with the garage door opener lights"ON".
3. Pressand hold the LIGHTbutton (approximately 10 seconds) until the garage door opener
lights turn off, then on again.
LEARN BUTTON: Any compatible remote control, wireless keylessentry, or MyQ
®
devices can be
programmed to the garage door using the LEARN button.
MOTION SENSOR: The motion sensor automatically turns on the garage door opener lights when
motion is detected. The lights come on for the set period of time, and then shut off.If using the garage
door opener light as a worklight disable the motion sensor, otherwise the lightsmay turn off
automatically if you are beyond the range of the motion sensor.
The motion sensor switch turns the motion sensor on or off.
LOCK: Preventsthe garage door opener from being activated by remote controls while still allowing
activation from the door control and keylessentry.
Turn ON:
Press and hold the LOCK button for 2 seconds.The command LED will flash as long as the lock feature
is on.
Turn OFF:
Press and hold the LOCK button for 2 seconds.The command LED will stop flashing and normal
operation will resume.

36
Operation
TIMER-TO-CLOSE (TTC) (Factory default is set to off): The Timer-to-Close feature automatically
closesthe door after a specified time period and can be adjusted using the door control. DO NOT
enable TTC if operating a one-piece door. TTC is to be used ONLY with sectional doors.The garage
door opener will beep and the lightswill flash before closing the door. The TTC feature will deactivate if
the garage door encounters an obstruction twice; or the safetyreversing sensors are incorrectly
installed. The garage door will reverse open and WILL NOT close until the obstructions are clear or the
safety reversing sensors are correctly installed. When the obstruction has been cleared or the safety
reversing sensors have been aligned, the door will close when the garage door opener is activated.
TTC WILL NOT work if the garage door opener is operating by battery power or if the safetyreversing
sensors are misaligned.This feature is NOT intended to be the primary method of closing the door. A
keyless entryshould be installed in the event of an accidental lockout when using this feature.
To turn TTC on or offor to set the TTC time interval:
Turn ON:
1. Pressand hold the ON button until one of the TTC LEDs light up.
2. Then pressthe ON button again to cycle through the time interval options.The TTC time
interval can be set to 1, 5, and 10 minutes (the corresponding TTC LED will light for each time
interval). The garage door opener light bulbs will blink as confirmation. Once the TTC has
been set and the door is open, the TTC LED for the selected time interval will blink and begin
to count down to close the door.
Turn OFF:
1. Pressand hold the OFFbutton until all TTC LEDs turn offand a beep is heard from the
garage door opener.
Temporarily hold door open (suspend TTC):
1. Pressand release the HOLD OPEN button.
2. Pressthe HOLD OPEN button again to resume normal TTC operation.

37
Operation
Multi-Function Control Panel
SYNCHRONIZE THE DOOR CONTROL: To synchronize the door control to the garage door opener,
press the push bar until the garage door opener activates (it may take up to 3 presses).Testthe door
control by pressing the push bar; each pressof the push bar will activate the garage door opener.
Push Bar
LIGHT Button
LOCK Button
Command LED
LEARN Button
PUSH BAR: Pressthe push bar to open or close the door.
LIGHT BUTTON: Press the LIGHT button to turn the garage door opener lightson or off. When the
lights are turned on they will stay on until the LIGHTbutton is pressed again, or until the garage door
opener is activated. Once the garage door opener is activated the lights will turn offafter the specified
period of time (the factory default is 4-1/2 minutes). The LIGHTbutton will not control the lightswhen the
door is in motion. The Light Feature will turn on the light on the garage door opener when someone
enters through the open garage door and the safetyreversing sensor infrared beam is obstructed.
To change the amount of time the lights stay on:
Press and hold the LOCK button (approximately 10 seconds) until the garage door opener lightsflash.
The time interval is indicated by the number of timesthe garage door opener lightsflash:
l 1 flash is 1-1/2 minutes
l 2 flashes is 2-1/2 minutes
l 3 flashes is 3-1/2 minutes
l 4 flashes is 4-1/2 minutes
To cycle through the time intervals repeat the step above. Ifthe push bar LED is continuously blinking,
the LOCK feature needs to be turned off.
To turn the Light feature on or off(Factory default is On):
Turn OFF:
1. Close the garage door.
2. Start with the garage door opener lights"OFF".
3. Pressand hold the LIGHTbutton (approximately 10 seconds) until the garage door opener
lights turn off, then on again.
Turn ON:
1. Close the garage door.
2. Start with the garage door opener lights"ON".
3. Pressand hold the LIGHTbutton (approximately 10 seconds) until the garage door opener
lights turn off, then on again.
LEARN BUTTON: Any compatible remote control, wireless keylessentry, or MyQ
®
devices can be
programmed to the garage door using the LEARN button.
LOCK: Preventsthe garage door opener from being activated by remote controls while still allowing
activation from the door control and keylessentry.
Turn ON:
Press and hold the LOCK button for 2 seconds.The command LED will flash as long as the lock feature
is on.
Turn OFF:
Press and hold the LOCK button for 2 seconds.The command LED will stop flashing and normal
operation will resume.

38
Operation
TIMER-TO-CLOSE (DO NOT enable on one-piece doors)
The Timer-to-Close feature is not available on all door controls.Below is a listof door controls with the
Timer-to-Close feature:
041A7305-1 Smart Control Panel and 041A7327-1 Motion Detecting Control Panel
The Timer-to-Close feature automatically closes the garage door after a specified time period. DO NOT
enable TTC if operating a one-piece door. TTC is to be used ONLY with sectional doors. Factory
default is set to off.The garage door opener will beep and the lightswill flash before closing the door.
The TTC feature will deactivate if the garage door encounters an obstruction twice; or the safety
reversing sensors are incorrectly installed. The garage door will reverse open and WILL NOT close
until the obstructions are clear or the safetyreversing sensors are correctly installed. When the
obstruction has been cleared or the safetyreversing sensors have been aligned, the door will close
when the garage door opener is activated. TTC WILL NOT work if the garage door opener is operating
by battery power or if the safetyreversing sensors are misaligned. This feature is NOT intended to be
the primary method of closing the door. A keyless entry should be installed in the event of an
accidental lock out when using this feature.
Remote Control and Keyless Entry
Pre-programmed remote control included, no need to program the remote.
To add or reprogram a remote control, follow the instructions below.Older Chamberlain remote
controls are NOT compatible, see page 43 for compatible accessories.
PROGRAM USING THE DOOR CONTROL
1. Pressthe LEARN button on the door control to enter Programming Mode.
2. Pressthe LEARN button again, the LED will flash once.
3. Remote Control: Pressthe button on the remote control that you wish to operate your garage
door.
Keyless Entry: Enter a 4-digit personal identification number (PIN) of your choice on the
keyless entrykeypad. Then press the ENTER button.
The garage door opener lightswill flash (or two clickswill be heard) when the code has been
programmed.
The command LED will flash once.
or
The command LED will flash once again.1 2
OR
PIN
? ? ? ?
3
or
To watch a video, go to tinyurl.com/lcsf6xt
HomeLink
®
If your vehicle is equipped with HomeLink,a CompatibilityBridge
TM
(not included) may be necessary for
certain vehicles. Visitbridge.chamberlain.com to find out if a Bridge is needed.

39
Operation
To Erase the Memory
ERASE ALL REMOTE CONTROLS AND KEYLESS ENTRIES
1. Pressand hold the LEARNbutton on garage door opener until the learn LED goes out
(approximately 6 seconds). All remote control and keylessentrycodes are now erased.
Reprogram any accessory you wish to use.
ERASE ALL REMOTE CONTROLS, KEYLESS ENTRIES AND MyQ
®
DEVICES
FROM GARAGE DOOR OPENER
1. Pressand hold the LEARNbutton on garage door opener until the learn LED goes out
(approximately 6 seconds).
2. Immediately pressand hold the LEARNbutton again until the learn LED goes out. All codes
are now erased. Reprogram any accessory you wish to use.
ERASE THE CONNECTION FROM GARAGE DOOR OPENER TO HOME Wi-Fi
NETWORK
1. Pressand hold the blackadjustmentbutton on the garage door opener until 3 beeps are
heard (Approximately 6 seconds).
ERASE A MyQ
®
ACCOUNT
1. Go to www.mychamberlain.com to accessyour MyQ
®
account.
2. Go to "Account" section.
3. Click "Delete Account".
Go to wifihelp.chamberlain.com for more details.
LEARN Button
Black
Adjustment
Button

40
Maintenance
Maintenance Schedule
EVERY MONTH
l Manually operate door. Ifit is unbalanced or binding, call a trained door systems technician.
l Check to be sure door opens and closesfully.Adjustif necessary,see page29.
l Testthe safetyreversal system.Adjustif necessary,see page31.
EVERY YEAR
l Oil door rollers, bearings and hinges.The garage door opener does not require additional
lubrication. Do not grease the door tracks.
The Remote Control Battery
To prevent possible SERIOUS INJURY or DEATH:
l NEVER allow small children near batteries.
l If battery is swallowed, immediately notify doctor.
To reduce riskof fire, explosion or chemical burn:
l Replace ONLY with 3V CR2032 coin batteries.
l DO NOT recharge, disassemble, heat above 212°F (100°C) or incinerate.
The 3V CR2032 Lithium battery should produce power for up
to 3 years.If the battery is low,the remote control’s LED will
not flash when the button is pressed.
To replace battery, pry open the case first in the middle (1),
then at each side (2 and 3) with the visor clip. Replace the
batteries with only 3V CR2032 coin cell batteries.Insert
battery positive side up. Dispose of old batteries properly.
1
2
3
NOTICE:To complywith FCC and/orIndustryCanada (IC)rules,adjustment ormodificationsof thistransceiverare prohibited. THERE
ARENOUSER SERVICEABLEPARTS.
Thisdevice complieswith Part15 of the FCC rulesand IC RSS-210. Operation issubjectto the following two conditions: (1)thisdevice
maynot causeharmfulinterference, and (2)thisdevicemustaccept anyinterferencereceived, including interference that maycause
undesired operation.
Thisdevice mustbe installed ina waywhere a minimum8"(20 cm)distance ismaintained between users/bystandersand device.
AVIS:Lesrèglesde la FCC et/ou d’Industrie Canada (IC)interdisent tout ajustement ou toute modification de cerécepteur.IL
N’EXISTEAUCUNEPIÈCESUSCEPTIBLED’ÊTREENTRETENUEPARL’UTILISATEUR.
Cet appareilestconforme auxdispositionsde la partie15 du règlement de la FCC et de l'norme IC RSS-210. Son utilisation est
assujettieauxdeuxconditoinssuivantes: (1)ce dispositif ne peut causerdesinterférencesnuisibles,et (2)ce dispositif doit accepter
toute interférencerecue, ycomprisune interférence pouvant causerun fonctionnement non souhaité.
Cet appareildoit être installé de manière à laisserune distance d’au moins20 cm(8 po)entre celui-ciet l’utilisateurou toute personne.

41
Diagnostic Chart
Your garage door opener is programmed with self-diagnostic capabilities. The UP and DOWN arrowson the garage door opener flash the diagnostic codes.
DIAGNOSTIC CODE SYMPTOM SOLUTION
Up Arrow
Flash(es)
Down Arrow
Flash(es)
1 1 The garage door opener will not close and the light bulbs flash.
Safety reversing sensors are not installed, connected, or wires may be cut. Inspectsensor wires for a
disconnected or cut wire.
1 2 The garage door opener will not close and the light bulbs flash.
There is a short or reversed wire for the safetysensors. Inspectsafety sensor wire at all staple and
connection points,replace wire or correct as needed.
1 3 The door control will not function.
The wires for the door control are shorted or the door control is faulty. Inspect door control wires at all
staple and connection points,replace wire or correctas needed.
1 4 The garage door opener will not close and the light bulbs flash.
Safety reversing sensors are misaligned or were momentarily obstructed. Realign both sensors to
ensure both LEDs are steady and not flickering. Make sure nothing is hanging or mounted on the door
that would interrupt the sensor’s path while closing.
1 5 Door moves 6-8" (15-20 cm) stops or reverses.
Manually open and close the door. Check for binding or obstructions, such as a broken spring or door
lock, correctas needed. Check wiring connections at travel module and at the logic board. Replace
travel module if necessary.
No movement, only a single click.
Manually open and close the door. Check for binding or obstructions, such as a broken spring or door
lock, correctas needed. Replace logic board if necessary.
Opener humsfor 1-2 seconds no movement.
Manually open and close the door. Check for binding or obstructions, such as a broken spring or door
lock, correctas needed. Replace motor if necessary.
1 6 Door coastsafter it has come to a complete stop. Program travel to coasting position or have door balanced by a trained door systemstechnician.
2 1-5 No movement, or sound. Replace logic board.
3 2 Unable to set the travel or retain position. Check travel module for proper assembly,replace ifnecessary.
4 1-4
Door is moving stops or reverses. Manually open and close the door. Check for binding or obstructions, such as a broken spring or door
lock, correctas needed. If the door is binding or sticking contacta trained door systems technician. If
door is not binding or sticking attempt to reprogram travel (refer to page 30).
Troubleshooting

42
DIAGNOSTIC CODE SYMPTOM SOLUTION
Up Arrow
Flash(es)
Down Arrow
Flash(es)
4 5
Opener runs approximately 6-8" (15-20 cm), stops and reverses. Communication error to travel module. Checktravel module connections,replace travel module if
necessary.
4 6
The garage door opener will not close and the light bulbs flash. Safety reversing sensors are misaligned or were momentarily obstructed. Realign both sensors to
ensure both LEDs are steady and not flickering. Make sure nothing is hanging or mounted on the
door that would interrupt the sensor’s path while closing.
The garage door opener can beep for several reasons:
l Garage door opener has been activated through a device or feature such as Timer-to-Close or
garage door monitor, see page 35.
My remote control will not activate the garage door:
l Verify the lock feature is not activated on the door control.
l Reprogram the remote control.
l If the remote control will still not activate the door checkthe diagnostic codes to ensure the garage
door opener is working properly.
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.
l Verify the safetyreversing sensors are properly installed,aligned and free of any obstructions.
My garage door opener light(s) will not turn off when the door is open:
The garage door opener is equipped with a feature that turns the light on when the safetyreversing
sensors have been obstructed or when the motion sensor on the door control detectsmovement in the
garage. These features can be disabled using the door control, see page 35.
My neighbor’s remote control opens my garage door:
Erase the memory from your garage door opener and reprogram the remote control(s).
The LEDs on the door control blink:
If you have a SmartControl Panel installed and the TTC is setto a custom time, press the ON button on
the Premium Motion-Detecting Control Panel to set the time properly.
My vehicle's Homelink
®
is not programming to my garage door opener:
CompatibilityBridge
TM
(not included) may be necessary for certain vehicles. Visit
bridge.chamberlain.com to find out if a Bridge is needed.
Wi-Fitroubleshooting
The garage door opener will NOT enter Wi-Fi LEARNmode:
l After the initial installation of the garage door opener, the garage door opener mustcomplete a
full cycle (open and closed) before the Wi-Fi LEARNmode can be activated.
l If there has been a recent power outage, the garage door opener mustcomplete a full cycle
before the Wi-Fi LEARNmode can be activated.
See 32 to activate Wi-Fi LEARNmode.
If your black adjustment button is not solid green go to wifihelp.chamberlain.com.
Troubleshooting

43
Accessories
AGDMEV Garage Door and Gate
Monitor:
Monitor open/closed status for
up to 4 MyQ
®
compatible
garage door openers and
close them from anywhere in
the home.
Remote Control:
Works with ALL Chamberlain
openers from 1993-present.
MyQ
®
compatible. Includes visor
clip.
CLLP1 Laser Parking Assistant:
Park in the right spot every time!
A laser beam is activated by your
garage door opener and
projected on to the dashboard
of your vehicle to guide perfect
parking.
956EV Keychain Remote Control:
Works with ALL Chamberlain
openers from 1993-present.
MyQ
®
compatible. With key ring.
940EV Wireless Keypad:
For use outside of the home to
enable access to the garage
using a 4-digit PIN. Works with
ALL Chamberlain openers from
1993-present. MyQ
®
compatible.
Extension Brackets:
(Optional) For safety reversing
sensor installation onto the wall
or fl oor.
CL
O
S
E
D
O
P
E
N
041A5281-1
7710CB
10 Foot (3 m) Rail Extension:
To allow a 10 foot (3 m) door to
open fully.
8 Foot (2.4 m) Rail
Extension:
To allow an 8 foot (2.4 m) door
to open fully.
7708CB
MyQ
®
Accessories
PILCEV MyQ
®
Remote Lamp Control:
Monitor and control this plug
in lamp switch with the MyQ
®
Smartphone App.
WSLCEV MyQ
®
Interior/Exterior Light
Switch
Monitor and control this wall
light switch with the MyQ
®
Smartphone App.
CIGBU
MyQ
®
Internet Gateway:
Offers longer range wireless
signal than standard Wi-Fi. Plugs
into your home router as an
optional way to provide MyQ
®
Smartphone Control for your
garage door opener and MyQ
®
light controls.
953EV

44
CHAMBERLAIN
®
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 defects in materials and/or
workmanship for a specifi c period of time as defi ned below (the “Warranty Period”). The warranty
period commences from the date of purchase.
WARRANTY PERIOD
Parts Motor Accessories Belt
B550 1 Year 10 Years 1 year 15 Years
B750 5 years Lifetime 1 year Lifetime
The proper operation of this product is dependent on your compliance with the instructions regarding
installation, operation, and 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. You will be advised of disassembly and shipping instructions when you call. Then
send the product or component, pre-paid and insured, as directed to our service center for warranty
repair. 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. [You are responsible for
any costs incurred in removing and/or reinstalling the product or any component.]
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 APPLICABLE LIMITED WARRANTY PERIOD SET FORTH ABOVE FOR THE
RELATED COMPONENT(S), 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 CONSUMABLE
ITEMS (E.G., BATTERIES IN REMOTE CONTROL TRANSMITTERS 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. 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.
Contact Information
For installation and service information call:
1-800-528-9131
Before calling, please have the model number of the garage door opener.
If you are calling about a Troubleshooting issue, it is recommended that you have access to your
garage door opener while calling.
If you are ordering a repair part please have the following information:
part number, part name, and model number.
Warranty
STOP!
This garage door opener WILL NOT work until the
safety reversing sensors are properly installed and aligned.

45
Repair Parts
Rail Assembly Parts
Accessories
Installation Parts
1
3
2
4
6
5
1
3
2
Description Part Number
1 Belt 041A5250
2 Pulley 144C54
3 Master Link 4A1008
4 Rail 041A5665
5 Trolley Assembly 041C5141-2
6 “U” Bracket 041D0598-1
Not Shown
Wear Pads 183A163
Hardware Bag 041A7920-2
Description Part Number
1 Multi-Function Control
Panel Model B550
041A7185-1
2 Motion-Detecting
Control Panel Model
B750
041A7327-1
3 3-Button Remote
Control
953ESTD
Description Part Number
1 Curved Door Arm 178B35
2 Door Bracket with Clevis
Pin and Fastener
041A5047
3 Emergency Release Rope
and Handle
041A2828
4 Header Bracket with Clevis
Pin and Fastener
041A5047-2
5 Remote Control
Visor Clip
29B137
6 Safety Sensor Bracket 041A5266-3
7 Safety Sensor Kit Receiving
and sending sensors with
wire
041A5034
8 Straight Door Arm 178B34
9 White and Red/White Wire 041B4494-1
10 3V CR2030 Lithium Battery 10A20
11 Hanging Brackets 12B776
Not Shown
Owner’s Manual 114A5010
1
3
4
2
5
6
7
8
9
10
11

46
11
10
7
6
9
2
12
8
4
4
3
5
5
1
13
14
Repair Parts
Garage Door Opener Parts Model B550
Description Part Number
1 Sprocket Cover 041A4371
2 Gear and Sprocket 041A4885-5
3 End Panel with Light Socket 041D0207
4 Light Socket 041C0279
5 Light Lens 041D7572
6 Capacitor 030B0532-1
7 Capacitor Bracket 12A373
8 Travel Module 041D7742-7
9 Cover 041D8810
10 Receiver Logic Board 050ACTWF
11 End Panel for Receiver Logic Board
with Light Socket
041D8214
12 Motor with Travel Module 041A7442
13 Line Cord 041B4245-1
14 Terminal Block 041A3150
Not Shown
Wire Harness 041A7948

47
Repair Parts
Garage Door Opener Parts Model B750
1
7
5
3
4
3
9
6
8
2
11
12
4
10
Description Part Number
1 Sprocket and Sprocket Cover with Screws 041C1751
2 End Panel with Light Socket 041D0207
3 Light Lens 041D7572
4 Light Socket 041C0279
5 Transformer 041D0277-2
6 Cover 041D8810
7 Motor with Travel Module 041D8006-1
8 End Panel for Receiver Logic Board with Light Socket 041D8214
9 Receiver Logic Board 050DCTWF
10 Travel Module 041D8071-4
11 Line Cord 041D4252-1
12 Terminal Block 041A3150
Not Shown
Wire Harness 041D8255

© 2017, The Chamberlain Group, Inc.
All Rights Reserved
Wi-Fi
®
is a registered trademark of Wi-Fi Alliance
App Store is a service mark of Apple Inc.
114A5010 Google Play is a trademark of Google Inc.
The Chamberlain Group, Inc.
300 Windsor Drive
Oak Brook, IL 60523
