Loading ...
Loading ...
Loading ...
40
Troubleshooting
DIAGNOSTIC CODE SYMPTOM SOLUTION
Up Arrow Flash
(es)
Down Arrow
Flash(es)
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 28).
4 5 Opener runs approximately 6-8" (15-20 cm), stops
and reverses.
Communication error to travel module. Check travel module connections, replace travel
module if necessary.
4 6 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.
The garage door opener can beep for several reasons:
l Garage door opener has been activated through a device or feature such as
Timer-to-Close, garage door monitor or LiftMaster
®
Internet Gateway, see
page31.
My remote control will not activate the garage door:
l 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 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.
l Verify the safety reversing sensors are properly installed, aligned and free of any
obstructions.
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. This feature can be disabled using the
door control, see page 34.
My neighbor’s remote control opens my garage door:
Erase the memory from your garage door opener and reprogram the remote control(s).
My vehicle's Homelink
®
is not programming to my garage door opener:
Depending on the make, model, and year of your vehicle an external adapter may be
required. Visit www.homelink.com for additional information.
Loading ...
Loading ...
Loading ...