by Arnold
(Sherwood park Alberta canada)

I just changed the main plastic gear in my Python 2 garage door opener. The chain travels to the stop without the door. As soon as I connect the door the door only opens up 1/2 way then stops. Tried adjusting the force and doesn't make any difference. Any suggestios?

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Nov 24, 2015
Sensor rpm
by: Anonymous

It is more than likely an rpm sensor

Feb 03, 2015
by: Donald

Have you tried adjusting the open limit switch? Move the open limit switch further from the door and see if that helps.

If that is not the problem, is there anything blocking the doors travel? Anything causing it to bind?

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