Question about Sears Craftsman LiftMaster Chamberlain Garage Door Opener Wireless Keypad Model 976LM Security+
Blinks 5 times, then 5 more. After a short pause it starts again. When the burtton is pushed the door moves about a foot. If it is pressed a second time, it returns that foot. Just replaced the worm gear and sprocket. Did I do something else?
5 flashes on operator and the short movement on the door indicates a bad RPM sensor. try to unplug the unit for 30 seconds, if this does not reset the motor, replace the RPM sensor
Posted on Jun 09, 2010
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Posted on Jan 02, 2017
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