Question about liftmaster Craftsman Garage Door Control Board 41a5021-1h-315
Posted by Anonymous on
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Posted on Jan 02, 2017
Reset the Liftmaster unit. There should be a red reset button on the unit in the garage. If this does not work, reset the breaker. Good Luck!
Posted on Jul 22, 2009
1)Press and release the "learn button" on the motor unit (the indicator light should glow steady for about 30 seconds
2)While the learn indicator light on the motor unit is glowing, press and hold the button on the remote unit you are using to open the door
3)When the motor unit's light starts to blink, release the button on the hand held remote. The motor unit has now learned the new code.
I hope this works for you!
Posted on Feb 12, 2010
The shaft on these garage door motors are not direct drive systems. You'll have to open up the box to see what the actual problem is. I have had stuff like this happen where a gear just slipped out of place.
Here is a link for a parts supplier. I don't know your model but it looks like most of the Liftmaster worm screw gears and drive gears are plastic so it's possible that one of them has cracked.
Posted on Feb 14, 2010
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