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Lock Arm Troubleshooting
SYMPTOM PROBABLE CAUSE CORRECTIVE ACTION
Door is reversing at or near the fl oor?
Outside door seal is too tight against the
face of the door.
Vertical track is spaced too close to the
bottom door section, causing the door to
bind.
Reinstall the door seal so as to be not so
tight against the face of the door.
Contact a qualifi ed service person.
Light fi xture will not light during the door
operation or by pressing the wall station
light button?
Misalignment of the light fi xture to the
opener.
Obstruction between light & opener.
Sending LED blocked by opener cover.
Adjust light fi xture alignment of the
receiver module with the sending LED on
the opener.
Remove obstruction.
Repostion LED to protrude through cover
hole.
Motor does not pull fully up when using
the emergency disconnect?
Disconnect cable has slipped inside of
handle.
Re-install handle per instruction in Step
14.
Motor starts but the door will not move?
Opener is disconnected from the torque
tube.
Ensure disconnect handle is in the “mo-
tors operated” position.
Re-install handle per instructions in Step
14.
Motor does not pivot down?
Motor pivots partially after the door
closes?
Detent pin is set too hard.
Using a screwdriver, rotate the detent pin
counterclockwise in 1/4 turn increments
until the motor fully pivots down after the
door closes.
Refer to step 25.
Motor pivots down prematurely (before
the door closes completely)?
Detent pin is set too soft.
Using a screwdriver, rotate detent pin
clockwise in 1/4 turn increments; until
motor fully pivots down after door closes,
and opener immediately shuts off.
See step 25.
Troubleshooting (continued...)
SYMPTOM PROBABLE CAUSE CORRECTIVE ACTION
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