Liftmaster Garage Door | Troubleshooting Problems


Got Garage Door Problems?!?

A lot of the problems Liftmaster Garage Door Opener owners face tend to be with the opener not working consistently. Many cases the reason for the failure comes from the garage door sensor being in the wrong place or a setting not adjusted correctly. Liftmaster offers garage door owners a few recommendations on what they can do to troubleshoot a garage door opener that is not operating correctly.

Garage Door Troubleshooting | Instructions

  1. Clear all obstructions from around the safety sensors if the door does not close or only closes part of the way. Some of the items that can cause obstructions are bicycles, cars or people. Smaller items also can cause problems, particularly if they are located close to the sensors. Make sure there are no leaves, trash or dirt directly on or near the sensor.
  2. Clean the sensor lenses if the doors sometimes close, but often do not close all the way. A little bit of dirt or debris on a sensor lens can cause the two sides of the sensor to not be able to communicate with each other. You can use a rag to quickly swipe dirt or other substances away from the sensor lens.
  3. Check each of the sensors for a glowing light on the top of the sensor. If both of the lights are on, this means that the sensors are not properly aligned. Use a ruler to make sure that both sensors are the same distance above the garage floor. The sensors should be no more than 6 inches off the ground. You can place a small item like a bolt on the casing just underneath the sensor and press down on the sensor. Do this on both sensors in the garage. This helps to align them.
  4. Unplug the garage door opener if the garage door opener seems to work fine, but the lights on the unit do not come on when the door opens or closes. Proceed to unscrew the light bulb and replace it with a new light bulb. Plug the garage door opener cord back into the outlet and press the button to open or close the garage door.
  5. Press and hold the “Learn” button on the garage door opener for six seconds and then release it if the garage door opener is opening and closing by itself. Pressing the button in this way resets the system and stops the door from continuing to open and close.
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