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DIAGNOSTIC CODE SYMPTOM SOLUTION
Up ArrowFlash
(es)
Down Arrow
Flash(es)
4 1-4 Door is moving stopsand or reverses. Manuallyopen and close the door. Checkfor binding or obstructions,such as a broken spring or
door lock, correctas needed. Ifthe 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 21).
4 5 Opener runsapproximately 6-8", stopsand reverses. Communication error to travel module.Checktravel module connections, replace module if
necessary.
4 6 The garage door opener will not close and the light
bulbs flash.
Safety sensorsare misaligned or were momentarily obstructed. Realign both sensors to ensure both
LEDs are steady and notflickering.Make sure nothing is hanging or mounted on the door that would
interruptthe 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 MyQ
®
Internet Gateway,see page 24.
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 safetyreversing sensor must be connected and aligned correctly before the garage
door opener will move in the down direction.
l
Verify the safetysensorsare properlyinstalled, 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 isequipped with a feature thatturns the light on when the safetyreversing sensors
have been obstructed. This feature can be disabled using the door control,see page 26.
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 ofyour vehicle an external adapter maybe required.Visit
www.homelink.com for additional information.
Troubleshooting
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