Troubleshooting - Chamberlain 8160 User Manual

Troubleshooting

Diagnostic Chart
Your garage door opener is programmed with self-diagnostic capabilities. The UP and DOWN arrows on the garage
door opener will fl ash the diagnostic codes.
DIAGNOSTIC CODE
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 fl ash.
The garage door opener
will not close and the
light bulbs fl ash.
The door control will not
function.
The garage door opener
will not close and the
light bulbs fl ash.
Door moves 6-8" (15-20
cm) 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 the travel
or retain position.
14
SOLUTION
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 fl ickering. 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 the 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.