Troubleshooting - Craftsman 139.3043 Owner's Manual

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 DOWN ARROW
FLASH(ES) FLASH(ES)
1 1
1 2
1 3
1 4
1 5
1 6
2 1-5
3 2
SYMPTOM
The garage door opener will
not close and the light bulbs
flash.
The garage door opener will
not close and the light bulbs
flash.
The door control will not
function.
The garage door opener will
not close and the light bulbs
flash.
Door moves 6-8" stops or
reverses.
No movement, only a single
click.
Opener hums for 1-2
seconds no movement.
Door coasts after it has come
to a complete stop.
No movement, or sound.
Unable to set travel or retain
position.
Safety sensors are not installed,connected, or wires may be
cut. Inspect sensor wires for a disconnected or cut wire.
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.
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.
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.
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
logic board. Replace travel module if necessary.
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.
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.
Program travel to coasting position or have door balanced by
a trained door systems technician.
Replace logic board.
Check travel module for proper assembly, replace if
necessary.
37
SOLUTION