Garage Door Will Not Close Light Flashes

Liftmaster motors will not operate when something obstructs the infrared beam between the safety sensors at the bottom of the garage door tracks.

Garage door will not close light flashes.

Start by locating the lock button on your garage door opener. The sensors won t allow the door to close with their infrared beam blocked. At times the garage door opener can malfunction and the garage door will not open or close. If both sensors light up and the door still does not close it could be your sensors are just faulty.

The opener can self diagnose any issues. First look for an item blocking the door and remove it. Counting the number of times this light flashes will allow you to know the exact fault. This video demonstrates what to do if your garage door won t close and the lights on the chamberlain garage door opener are flashing.

Check safety sensor alignment. The safety sensors use an invisible beam of infrared light to detect obstructions in the garage door s path. Like any electric component garage door sensors sometimes need to be replaced. It informs you of an issue by flashing the diagnostic led light a certain amount of times.

Troubleshooting a liftmaster opener with a flashing light involves inspection of the safety reverse sensing system. Light blinking continuously if you own a new garage door opener that comes with a locking feature it s possible someone may have accidentally locked your garage door by pressing the lock button. Lights on garage door opener flash and door will not close garage door light flashing but won t close when you see you garage door opener lights flashing and the garage door will not close it could be the lock button or the safety reversing sensors.