Question about Sears Craftsman LiftMaster Chamberlain Garage Door Opener Wireless Keypad Model 976LM Security+
COULD BE A WEAK REMOTE BATTERY A BAD REMOTE OR A BAD RECEIVER.
YOU CAN BUY AN EXTERNAL UNIVERSAL RECEIVER. THAT CAN BE MOUNTED CLOSER TO THE DOOR AND IS CHEAPER THAN REPLACING THE CIRCUIT BOARD.
BUT REMEMBER, I HAVE SEEN A RV POWER INVERTER PARKED NEXT TO THE GARAGE STOP A NEW OPENER FROM WORKING AT A DISTANCE OF 5 FEET.
SO I ALWAYS SUGGEST TURNING OFF POWER TO EVERYTHING YOU CAN JUST AS A TEST.
HOPE THIS HELPS
Posted on May 29, 2010
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Posted on Jan 02, 2017
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