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

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I have liftmaster professional garage door opener. it opens ok but does not close with remote and light keeps flashing on garage door opener. I checked both sensors and seems like the sending sensor light ( orange) does not glow. receiving sensor (green) light flashes sometimes. when I press wall button for garage door the orange light turns on and garage door closes. I am not sure if it is faulty sensor or what? wiring to sending sensor looks ok.

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If your sensors are not pointed at one another the light on one of them will go out. Tweak them a bit. If you cannot get the light to come on then your sensors are bad.

Posted on Oct 25, 2010

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