02:52PM | 01/01/07
Member Since: 12/31/06
1 lifetime posts
I have a 3/4 horse Crastman Garage Door Opener, Model 139.53990. The lights will not time out/shut off, I have removed the light bulbs. I can not turn them off from the button on the wall unit. Is it a problem with the wall control or in the motor unit on the ceiling?


07:13PM | 01/01/07
Member Since: 04/25/05
1915 lifetime posts
Disconnect one of the wires from the wall control. It might be easiest to do that on where the wires connect to the opener, but you can do it at either end.

Just disconnecting one of the two wires at either is enough.

If the light goes out then the problem is in the wall controll.

If not it is in the opener receiver logic board.

I believe that this is the control board for you unit. But verify it with them before ordering as your model is a newer one and it is not shown on their cross reference.

If you have the motion sensor wall control this is the one.

Or the plain wall control.

Either one will work.

At least locally Home Depot has the wall controls.

Note - that Chamberlain makes the Chamberlain, Liftmaster, and Sears units and the same parts are used.

But Sears has a 5 yr warantee on the parts (but not labor). So check with them before buying.
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