How To Fix A Garage Door Opener Sensor

If the green or red power indicator lights on the sensors are not illuminated you need to check the wiring.

How to fix a garage door opener sensor.

The sensors that make garage doors safer must be located in the worst possible place close to the floor. One that sends an infrared beam and one that receives the beam. For the door to close correctly without reversing the safety sensors need to be aligned perfectly and there should be nothing in the way of the light beam. This is something to consider if you decide.

To prevent the garage door from injuring someone in the door or damaging an item in the way of the door all models of liftmaster garage door openers come installed with a safety sensor. The main drive gear is the plastic gear that comes in direct contact with the worm drive gear on the motor. Use the stepladder to inspect the wires near the upper part of a wall and at the ceiling. 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.

This diy repair guide explains how to replace a safety sensor on a garage door opener. Disconnect the power cord from the outlet at the ceiling you will have to use a stepladder. Electric garage door openers are a great innovation but as is the case with every electric electronic component things can go bad and malfunction. Proper height for a garage door sensor is 4 to 6 inches 10 2 to 15 2 cm.

The garage door opener has two sensors that prevent the garage door from closing on a person or object. Higher than that can miss many low lying objects including pets. An incorrectly adjusted garage door opener and sensor can cause damage to the garage door motor lift mechanism your house or worse a person or pet. Lower is easy to stand above with a foot on either side.

The sensors are connected to the garage door opener with the help of low voltage wiring. If your garage door sensors are outside of this range remove them entirely from the garage door frame and install leveled inside the safe zone. 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. Inspect the double strand insulated low voltage wires from each sensor to the back of the garage door opener.

If an object or person is in the way of the beam the closing door reverses direction.