Garage door opener sensors

Chautauqua49December 9, 2011

We have a Craftsman door opener that won't close unless you hold the switch. There was no light from the sensors, so I replaced them. I got a light from one sensor only briefly, and then it went dark. They won't work. I double checked wire connections, but no luck.

Any suggestions from anyone?

Thanks very much.

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don_1_2006

If when closing the door it reverses to the open position and the main light flashes 10 times it is a door sensor problem. Make sure the small light on each sensor is on and not flickering ever so slightly. (check closely) Tweak them a little even though they may seem to be okay. Check for 5vdc between terminals 2 and 3 on the rear of the motor unit. If there is no voltage or if it is greater than 6vdc the logic board is bad.

    Bookmark   December 9, 2011 at 4:38PM
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