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Situation
Having a Problem? (conUnued)
Probable Cause & Solution
The door opens but
won l close:
1. ffthe opener lights blink, check the safety reversing sensor. See page 23.
2. Ifthe opener lights do not blink and it isa new installation, check the down force.
See Adjustment Step 2, page 29. For an existing installation, see below.
Repeat the safety reverse test after the adjustment Is complete.
The door reversas for
no apparent reason
and opener Ilghte
don_tblink:
1. Is something obstructing the door?.Pull the red emergency release handle. Operate
the door manually. If it is unbalanced or binding, call for professional garage door
service.
,
3.
4,
Clear any ice or snow from the garage floor area where the door closes.
Review the force adjustment procedures on page 29.
Ifdoor reverses in the fullyclosed pos_on decrease the travel limits(page 28).
Repeat safety reverse test after adjustments to force or travel limits. The need
for occasional adjustment of the force and limit settings Is normal. Weather
conditions In particular can affect door #avel.
The door reverses for
no apparent rsason
and opener lights
bllnk for 5 _conds
after reverelng:
Check the safety reversing sensor. Remove any obstructionor align the receiving eye.
See page 23.
The opener lights:
The opener strains or
maximum force Is
needed to operste
door:
• .. don_ turn on:
Replace the light bulbs (75 watts maximum). Use a standard neck garage door opener
bulb if regular bulb bums out.
... don_tturn off:
Is the Light feature on? Turn it off.
The door may he outof balance or the spdngsare broken.Close the door and use the
emergency release to disconnectthe trolley.Open and dose the door manually.A properly
balanced door.willstay inany pointof travel while being supportedentirelyby itssprings,ffit
does not,disconnectthe opener and call a professionalgarage door serviceman. Do not
Inoreasa the force te operste the openor.
The opener motor
hums briefly, then
won't work:
The opener won _
operate due to
power failure:
,
2,
The garage door springs are broken. See above.
ffthe problemoccurson the firstoperation ofthe opener, door may he locked. Disab/e
the door/ock, ffthe chain was removed and reinstalled,the motor may be out of phase.
Remove the chain;cycle the motor,tothe down position.Observe the drivespro_at.
When itturns ina clockwisedirection and stops inthe down positlen, reinstallthe chain.
Repeat the safety reverse test af_.r the adjustment is compist_
1. Use 'd'teemergencyrelease todisconnectg-_ trolley.The doorcan be epened and clos_
rnanually.When thepower isrestored,pressthe WallControlpushber and tmUeywill
automaticallyreconnect(unlesstrolleyisin lockoutposi_on.)See page 32.
2. The Emergency Key Release accessory (for use on garages with no service door)
disconnects the trolley from outside the garage in case of power failure.
The chain droops
or sags:
It is normal for the chain to droop slightly in the closed door position. Use the
emergency release to disconnect the trolley. Ifthe chain retums to normal height when
the trolley isdisengaged and the door reverses on a one-inch board, no adjustments
are needed (see page 11).
35
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