Question about Sears Craftsman LiftMaster Chamberlain Garage Door Opener Wireless Keypad Model 976LM Security+
I have a craftsman 1/2 hp chain driven garage door opener that is 10-15 years old. I replaced the large plastic gear inside the motor housing. The motor was working before disassembly but wouldn't open the door because the plasitic teeth on the gear were worn down too much to mesh with the worm gear.
After installing the plastic gear and worm gear I pressed the wall mounted switch. The motor doesn't turn on at all. The yellow light located in the motor housing(opposite of the light bulb) blinks.
Why is the yellow light blinking?
It sounds like you did a really good job! My Craftsman 1/2 hp gar. dr. opener has a red reset button on it on the l/h side as you are looking at the light/motor from the garage door opening. You have to take the light cover off to be able to see it. My reset button is on the same side as the ground wire. You might check the ground wire while you're there. I really hope that this fixes it for you (and me). I'm quite sure it will as you know your way around the garage door opener already. Good Luck and Let me Know (Please) if it fixed it or not. If I think of anything else, I'll let you know. Have a Good Day!
Posted on Jan 16, 2009
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Posted on Jan 02, 2017
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