31
Troubleshooting
Your garage door opener is programmed
with self-diagnostic capabilities. The UP
and DOWN arrows on the garage door
opener fl ash the diagnostic codes.
Diagnostic Chart
UP Button
DOWN Button
DIAGNOSTIC CODE
SYMPTOM
SOLUTION
Up Arrow
Flash(es)
Down Arrow
Flash(es)
1
1
The garage door opener
will not close and the
light fl ashes.
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 fl ashes.
There is a short or reversed wire for the safety sensors. Inspect safety sensor
wire at all staple points and connection points and 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 points and connection points and
replace wire or correct as needed.
1
4
The garage door opener
will not close and the
light fl ashes.
Safety sensors are misaligned or were momentarily obstructed. Realign
both sensors to ensure both LEDs are steady and not fl ickering. Make sure
nothing is hanging or mounted on the door that would interrupt the sensors
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 coast after it has
come to a complete stop.
Program travel to coasting position or have door balanced by a trained
technician.
2
1-5
No movement or sound.
Replace logic board.
3
1
The garage door opener
moves slightly, then
stops
Activate the garage door opener again. If problem persists, replace logic
board.
3
3
The battery status LED is
constantly fl ashing green.
Battery backup charging circuit error, replace logic board.
3
5
The garage door opener
will not close or door
reverses during travel.
Check for possible door obstructions and remove. Check that the cable
tension monitor is properly connected to the opener. Replace the cable
tension monitor. If two cable tension monitors were previously installed and
one has been removed, unplug and plug in the opener three times to relearn
the monitor to the opener.
4
1-4
Door is moving stops and
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.
4
5
Opener runs
approximately 6-8"
(15-20 cm), stops and
reverses.
Communication error to travel module. Check travel module connections,
replace module if necessary.
4
6
The garage door opener
will not close and the
light fl ashes.
Safety sensors are misaligned or were momentarily obstructed. Realign
both sensors to ensure both LEDs are steady and not fl ickering. Make sure
nothing is hanging or mounted on the door that would interrupt the sensor's
path while closing.
5
5
The door will not close
when using Timer-
to-Close or MyQ
®
Smartphone Control
MyQ
®
Remote LED Light must be installed to use TTC or MyQ
®
to control the
door. Plug in the MyQ
®
Remote LED Light and make sure it is programmed
to the garage door opener.
