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Question About Craftsman Garage Door Opener 139.53992SRT
1/2 hp screw drive wont close...

My obstruction sensors seem to be aligned because they are solid orange nad green lights, yet my door won't go down, even with door not hooked up the screw mechanissm will not run the length of the track, gives warning lights please help

Asked by Mike on 12/13/2010 0  Answer

ManualsOnline posted an answer 13 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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