Question about Sears Craftsman LiftMaster Chamberlain Garage Door Opener Wireless Keypad Model 976LM Security+
One sensor light is blinking green and the other sensor light is blinking yellow. Door will not open or close
The safety eyes are wired wrong on the back of the opener. Check the wire locations.
Posted on Jun 16, 2010
Vince is right. If you need further help about how to wire it right please let me know the model type or post a photo of the motor head.
Posted on Nov 06, 2012
a 6ya Repairman can help you resolve that issue over the phone in a minute or two.
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Posted on Jan 02, 2017
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