Liftmaster Garage Door Keeps Going Up And Down

If these can t see each other when the door is almost shut it will send a signal to the garage door motor to open back up.

Liftmaster garage door keeps going up and down.

It all depends on the configuration but you likely have a button that activates the door operator. When that happens the distance your garage door needs to travel may change. These issues include shorts in the wall button the garage door opener remote the wall button wiring the wired keypad or other related electronic issues. Besides a short in the circuit board any number of mechanisms that are involved in making the door open and close could be the cause of the garage door opener s ghost movement.

In cases like this your travel down setting simply needs to be adjusted to the new distance. The door operator button is similar to a door bell. These steps should fix most doors. 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.

The button can easily get dirty and stuck in the pushed. Otherwise the door s mechanical mechanism will butt up against this buildup and depending on how sensitive it is may reverse the door also a power surge caused by a lightning storm for example may have damaged the electrical circuits of your door opener. This is almost always the result of a dirty or obstructed safety feature. A careless or rushed parking job can cause the car s bumper to block the sensor.

There s one last scenario that applies to door openers manufactured before 1993. Try opening the garage door with the remote and see what happens. Sometimes the sensors will be in alignment and just as the door gets close to being shut it will vibrate enough to push one sensor off. Your limit switch needs to be adjusted.

To troubleshoot the garage door opener button make sure it s clean and free of debris. When this happens it s often down near the sensor eyes themselves where mice can sometimes chew through the insulation or the wires are damaged by a broom or shovel. Examine the garage door opener button. 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.

It s a fairly easy matter to replace these small wires. But changes in weather conditions can causes your garage door components to shift or contract. Your garage door sensor works by having two photo sensitive devices on either side of the garage door. This will cause the trolley to move into position and reconnect to the garage door.

Look for damaged insulation bare strands of wire or even a nail or staple piercing the wire. You push the button to close the garage door. Find local garage door repair.