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40
Diagnostic Chart
Your garage door opener is programmed with self-diagnostic capabilities. The UP and DOWN arrows on 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. Inspect sensor 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 safety reversing sensors. Inspect safety 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 correct as 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, correct as
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, correct as
needed. Replace logic board if necessary.
Opener hums for 1-2 seconds no movement.
Manually open and close the door. Check for binding or obstructions, such as a broken spring or door lock, correct as
needed. Replace motor if necessary.
1 6
Door coasts after it has come to a complete stop. Program travel to coasting position or have door balanced by a trained door systems technician.
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 if necessary.
3 3
The battery status LED is constantly flashing green. Battery backup charging circuit error, replace the logic board.
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, correct as
needed. If the door is binding or sticking contact a trained door systems technician. If door is not binding or sticking
attempt to reprogram travel (refer to page 30).
4 5
Opener runs approximately 6-8" (15-20 cm), stops and reverses. Communication error to travel module. Check travel module connections, replace travel module if necessary.
Troubleshooting
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