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Question About Chamberlain Garage Door Opener 940D-01
my garage door starts closing very slowly and then...

my garage door starts closing very slowly and then goes quickly at the end causing it to hit the ground a little hard and open up around one foot... what causes that and can I fix it myself?

Asked by Treina on 12/30/2012 0  Answer

ManualsOnline posted an answer 11 years, 9 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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