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

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Have a Sears Opener 76LE that has operated without trouble for over 25 years. Yesterday, I tried to open door and as soon as unit was under load, went into the close mode, then tried to open, then closed. Repeated this cycle until I unplugged unit and disengaged door. The motor, chain, belt, pulley and door all appear to be in good working order. I assume this is a control problem. Is this fixable and are parts available?

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If your opener is truly 25 years old there are not going to be any parts available. The model number you give is not the model number. It starts with 139. and probably has 6 numbers after the period or dash. Once you have it you can go to Sears parts and see if there are parts available.

Posted on Feb 02, 2010

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Posted on Jan 02, 2017

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