Craftsman 57918 Owner's Manual download pdf (Page 44)

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 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 31).

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Craftsman 57918 Owner's Manual Page 44

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