TROUBLESHOOTING
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.
UP ARROW
FLASH(ES)
DOWN ARROW
FLASH(ES)
SYMPTOM
SOLUTION
1
1
The garage door opener will not
close and the light bulbs flash.
Safety 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 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 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 31).
42
