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Question About Craftsman Garage Door Opener 139.53978SRT
craftman garage door opener. Opener track movemen...

craftman garage door opener. Opener track movement is limited to 8 to 10 inches back and forward when we hit the open/close door button. Door spring is fine. How do we check if sensors are functional

Asked by roop on 08/20/2014 1  Answer

ManualsOnline posted an answer 10 years, 3 months 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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