Quote:
Originally Posted by nada
IMHO we are all assuming the motor is new enough to have the said sensors.
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These sensors are called "eyes" and usually if they are out of adjustment will give the door problems. If the door is stopping before it hits the ground there is a force knob on the back of the motor(LiftMaster, Craftsman) that you can adjust also.All doors installed from the mid nineties should have a set of electric eyes on them.