38
DIAGNOSTIC CODE SYMPTOM SOLUTION
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Flash(es)
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Flash(es)
4 1-4
Door is moving stops or reverses.
Manuallyopen and close the door. Check for binding or obstructions,such as a broken spring or door lock,
correctasneeded. If the door is binding or sticking contact a trained door systems technician. Ifdoor is not
binding or sticking attempt to reprogram travel (refer to page 28).
4 5
Opener runsapproximately6-8", 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 lightbulbs
flash.
Safety sensors are misaligned or were momentarily obstructed. Realign both sensors to ensure both LEDs
are steadyand not flickering.Make sure nothing ishanging 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 or
garage door monitor, see page 32.
My remote control willnot 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 checkthe diagnostic codesto 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 safetysensors are properly installed,aligned and free ofany 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 lighton when the safety reversing
sensors have been obstructed. This feature can be disabled using the door control, see page 33.
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 may be required.Visit
www.homelink.com for additional information.
Troubleshooting
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