Question about Sears Craftsman LiftMaster Chamberlain Garage Door Opener Wireless Keypad Model 976LM Security+

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I've got a liftmaster 98LM Motion wall control that for some reason doesn't open the garage door (worked great for over 8 years). The lights under the Open button are blinking, it turns the light on and the lock feature is also working for the remote controls. Please help with a solution. Thanks!

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I would try unplugging the unit and letting it reset.

Posted on Jun 08, 2010

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Wireless garage door opener works wired one doesn,t


Either the wall control has gone bad or you have a broken wire going to it.

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THIS IS PROBABLY CAUSED BY A SHORTED WIRE.

OR A BAD WALL CONTROL.
DISCONNECT WALL CONTROL & TEST.

IF STILL NO RESULT DISCONNECT WALL CONTROL WIRES AT THE POWERHEAD & TEST AGAIN.

REPLACE WIRE OR WALL CONTROL.

HOPE THIS HELPS

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The wires going to the wall control are color coded. One of them is white and the other is white with a red stripe. Make sure they are attached to the correct terminals at the motor unit and on the back of the wall control.

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