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

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Changed the gears in my garage door opener: now its dead

I have a 10 year old Sears 1/2hp garage door opener. I just changed the gears, and now it doesn't do anything. When I plug it in, the work light does not come on, but the little green light in the wall button slowly comes on to full brightness. The lights in the door sensors come on too. Thats it though. Pressing the buttons doesn't anything. Its absolutely dead, except for the little green lights on the low voltage side. Unplugged it, re-plugged it. Nothing.

Any ideas?

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RE READ THE INSTRUCTIONS VERY CAREFULLY AND MAKE SURE EVERY STEP WAS DONE IN ORDER.

YOU MAY HAVE A BAD CIRCUIT BOARD - WAS EVERYTHING NORMAL BEFORE THE GEAR STRIPPED?

Posted on May 29, 2010

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