Craftsman 139.54985 Owner's Manual page 36

TROUBLESHOOTING
UP ARROW DOWN ARROW
FLASH(ES) FLASH(ES)
4 1-4
4
4
My garage door opener beeps:
A visual and audible alert that an unattended door is closing
l
from a garage door monitor, AssureLink
or Timer-to-Close.
My remote control will not activate the garage door:
Verify the lock feature is not activated on the door control.
l
Reprogram the remote control.
l
If the remote control will still not activate the door check the
l
diagnostic codes to ensure the garage door opener is working
properly.
My door will not close and the light bulbs blink on my motor
unit:
The safety reversing sensor must be connected and aligned
correctly before the garage door opener will move in the down
direction.
Verify the safety sensors are properly installed, aligned and
l
free of any obstructions.
SYMPTOM
Door is moving stops or reverses. Manually open and close the door. Check for binding or
Opener runs approximately 6-8",
5
stops and reverses.
The garage door opener will not
6
close and the light bulbs flash.
TM
Internet Gateway,
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 28).
Communication error to travel module. Check travel module
connections, replace travel module if necessary.
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.
My garage door opener light(s) will not turn off when the
door is open:
The garage door opener is equipped with a feature that turns the
light on when the safety reversing sensors have been obstructed
or when the motion sensor on the door control detects movement
in the garage. These features can be disabled using the door
control, see page 32.
My neighbor's remote control opens my garage door:
Erase the memory from your garage door opener and reprogram
the remote control(s).
36
SOLUTION