Question about liftmaster Chamberlain Garage Door Opener Transmitter 300MC
I have a digidoor III which is closing but not all the way down on roll up garade doors. Any one to help
Hi. There are two adjustment screws on the side of the door opener, one adjusts up and the other adjusts down. Just make small adjustments and keep testing it, as in 1/4 of a turn. J.
Posted on Aug 01, 2010
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Posted on Jan 02, 2017
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