Garage Door Opens Intermittently

You push the button to close the garage door.

Garage door opens intermittently.

The symptom of this is a garage door that is in constant motion opening fully then immediately descending only to start the same cycle again. Locate and eliminate the source of the rf interference. As with many such problems the most common problem is the simplest one the motor unit has been unplugged. If your garage door is closing fully and then reversing to open again then it may be due to a problem with the close limit switch.

Simply put if the descending door hits an object the motor detects the resistance and the door opens. As these wires short against the housing the electrical impulse causes the door opener to activate. First check the sensor lights. When the garage door opener works intermittently the logic board may be experiencing radio frequency rf interference from nearby sources such as security lights ham radios and some electronics.

It s also possible that the circuit breaker fuse or gfci outlet powering the door opener circuit has tripped or burned. See all the details in this video. Depending on the brand. The slightest detection such as accumulated leaves snow or ice around the garage door can cause the door to not shut completely.

There may also be loose wire connections inside the button housing itself. If the remote works only when held within a few feet of the motor unit rf interference is probably the problem. Adjust the degree of upward force which is one of the two adjustable screws on most garage door openers. The garage door opener detects when it is getting too difficult to raise the door and automatically shuts down.

This is almost always the result of a dirty or obstructed safety feature. In order to fix this you ll want to make small changes to the close limit setting until the door opener knows to stop once the door has reached the floor. It goes partway down reverses direction and goes back up again. Likewise if the beam of light between the floor sensors is broken the door will not shut.

Finally it s possible the garage door opener s motor.