How To Align Garage Door Sensors Liftmaster. Check that the line of the string is level. Remove the receiving sensor (green light) from bracket.
Adjust the sensor until the leds are glowing steady and tighten the wing nuts. How to align your garage door sensors. If the door closes, test the safety reversal after this adjustment, and you’re done.
Slowly rotate sensor back, aligning sensor.
The best way to do this is to trip the fuse to your garage in the breaker box. Ad shop our wide selection of batteries, bulbs, chargers & device repair services! If the door closes, test the safety reversal after this adjustment, and you’re done. To adjust the sensor, loosen the wing nut with your wrench and set t it to the exact height that the other sensor is at.