Repair Garage Door Opener Sensor

In most cases that will solve the problem but sometimes a bad circuit board in the main unit is responsible for non functional sensors.

Repair garage door opener sensor.

The main drive gear is the plastic gear that comes in direct contact with the worm drive gear on the motor. Lay a level so the bottom runs along the string. If the green or red power indicator lights on the sensors are not illuminated you need to check the wiring. Use a step ladder to access the garage door opener s power cord and motor unit.

Pull the sensor from the bracket. Wiring issues the sensors are connected to the garage door opener with the help of low voltage wiring. Check that the line of the string is level. Remove any debris dust or cobwebs from the electric eye lenses on each sensor with a clean rag.

Adjust the garage door opener mechanism. Disconnect the power cord from the outlet at the ceiling you will have to use a stepladder. Continue until the sensors are once again level. This video takes you from my problem description to a successful repair all for under 24 00 u s.

My liftmaster garage door stopped closing the normal way. Refer to the owner s manual to determine which is. Sometimes the sensor may be beyond repair due to wear and tear and in such a case your best bet is to replace the garage door sensor with a new one. Replace the main gear drive if the garage door opener makes a grinding noise but the door doesn t move your main drive gear is probably toast.

Garage door opener won t open all the way fix. Connect the new safety sensor wires. Remove the wing nut from the safety sensor. Cycle the garage door through the opening and closing actions using the control on the garage wall.

A garage door opener finally if nothing else works try replacing the units.