Sears Garage Door Opener 139 18851 Door opens fine...but will not stay closed. When it reaches the close position; it immediately opens again. There are no impediments in the track or garage floor and both door sensors read green. Any suggestions. Its winter up here and I need the door closed. TKS Ken Toronto Canada

Asked by ken lydford on 02/15/2015 0  Answer

ManualsOnline posted an answer 9 years, 9 months ago

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