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Question About Craftsman Garage Door Opener 139.53978SRT
I also have this same model & I replaced the recei...

I also have this same model & I replaced the receiver board. for $70. Still have same problem. Sensor eyes are 'on' not blinking and door refuses to close.

Asked by TIM ARENO on 11/07/2014 1  Answer

ManualsOnline posted an answer 10 years ago

The ManualsOnline team has found the manual for this product! We hope it helps solve your problem. Get the Manual Here

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