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Question About Craftsman Garage Door Opener 1/2 HP 139.53978SRT
garage door wont close...

The garage door closes to about 1 foot above the floor then goes backup. The lazers are a couple inches below the door when it goes back up. How do I get the door to close all the way? There are no obstructions and the lazers appear to be balanced towards each other.

Asked by Charlie on 01/01/2013 1  Answer

ManualsOnline posted an answer 11 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

mike posted an answer 11 years, 10 months ago

0 I am having this same problem. Door is clean and lasers are fine. I bumped up the down force and that helped for awhile. Then same problem cropped up again. I have now bumped up downforce to maximum, and door is now closing again. There may be a general problem in the down force on these.
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