Installation Instructions

40
DIAGNOSTIC CODE SYMPTOM SOLUTION
Up Arrow
Flash(es)
Down Arrow
Flash(es)
4 1-4
Door is moving stops 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 systemstechnician. If door
is notbinding or sticking attempt to reprogram travel (refer to page 30).
4 5
Opener runsapproximately6-8" (15-20 cm), stopsand
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 momentarilyobstructed. Realign both sensors to ensure
both LEDsare steadyand notflickering. Make sure nothing ishanging or mounted on the door that would
interruptthe sensor’spath 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 33.
My remote control will not activate the garage door:
l Verify the lockfeature is notactivated on the door control.
l Reprogram the remote control.
l If the remote control will still notactivate the door check the diagnostic codesto ensure the garage
door opener isworking 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 ofanyobstructions.
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
sensorshave been obstructed. These features 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:
Compatibility Bridge
TM
(notincluded) maybe necessary for certain vehicles.Visit
bridge.chamberlain.com to find outifa Bridge is needed.
Troubleshooting