Question about Sears Craftsman LiftMaster Chamberlain Garage Door Opener Wireless Keypad Model 976LM Security+
Sorry to say,u should of replaced the whole control box.This is not a sensors problems,it the control box problems.U know basic electronic's and soldering?Take the control box aparts,check for these bad capacitors leakages,these capacitors alway have the top of it bulges or puff up.These capacitors not giving it max power that why it work sometimes,sometimes don't.Replaced these leakage capacitors,ur power should return yo normal.
Posted on May 03, 2010
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Posted on Jan 02, 2017
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