Question about Sears Craftsman LiftMaster Chamberlain Garage Door Opener Wireless Keypad Model 976LM Security+

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I have a Craftsman Model # 139.53664SRT that has worked great until recently. When I try to close the garage door by keypad or with remote, it will not allow me to do so unless I turn the light out once garage door is open & step over the sensors without tripping the lights back on again. Otherwise I have to wait 4 1/2 minutes for the light to go out before closing the garage door. Is this model fixable or do I need to purchase a new opener??

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The first thing I would do is remove the light bulb from the socket and try the opener. I have a feeling the bulb itself is bad or there is some arcing in the socket. Try unplugging the opener and prying out on the center connector of the socket.

Posted on Apr 08, 2011

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