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Question About Craftsman Garage Door Opener 139.53978SRT
door gets to bottom and reverses back up; dont kno...

door gets to bottom and reverses back up; dont know the model number it is 2 years old and has the backup battery; nothing is blocking the electric eye's path only a problem when is gets cold

Asked by pau on 01/06/2015 1  Answer

ManualsOnline posted an answer 9 years, 10 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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