Repair and disassembly guides for garage door openers.

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liftmaster garage door will not stay down when pushing remote

I push remote and garage door goes down but then it goes back up. I adjust sensors that works for a few days then it starts doing the same thing.Is this bad sensors or there something else going on?

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1 Answer

Change the circuit board in the opener.

Disconnect all power to the opener before installing new board!!!

Here they probably have what you need:

http://www.northshorecommercialdoor.com/...

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