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Question About Chamberlain Garage Door Opener None
door won't open or close...

The unit makes the usual noise but the chain does not move. Someone told me it's probably the shear pin. Where could I purchase one?

Asked by Brian on 12/28/2008 1  Answer

ManualsOnline posted an answer 15 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

Andre posted an answer 15 years, 8 months ago

0 Please look here: http://www.chamberlain-garage-door-openers.com/41c4220agear.htm
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