Question about Chamberlain 1/2-HP Whisper Drive Belt Drive Garage Access System
Try to re-program travel and force limits. Make sure that travel limit (down) does not go too far (thus excessive force). Apparently this system has a force sensor that senses if there is something in the way of the door. This is different from the safety sensor "eyes". The problem in your setup is that you have programmed the door to travel down too much and he system looses its ability to use force sensor. Adjust travel limit (down) to a little less travel and you will be fine.
Posted on Nov 01, 2010
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Posted on Jan 02, 2017
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