Craftsman Garage Door Opener Troubleshooting Flashing Light 11 Times

If you try to open your door using a remote while the lock system is engaged you ll notice that the garage door light will begin blinking continuously.

Craftsman garage door opener troubleshooting flashing light 11 times. The motor can overheat if the door is opened and closed several times in a row. T his is a pretty uncommon problem but one that can happen after you ve first installed your garage door opener. 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. Once you push this button the light on the garage door opener will flash twice.

An open door will not close if the infrared beam is broken. Liftmaster motors will not operate when something obstructs the infrared beam between the safety sensors at the bottom of the garage door tracks. If your garage door opener won t open and the motor unit lights blink 10 times it usually means you have a problem with your safety sensors. To unlock your garage door opener push the lock button for 5 seconds.

Garage door openers made after 1993 are equipped with sensors positioned on both sides of the vertical rails. Troubleshooting a liftmaster opener with a flashing light involves inspection of the safety reverse sensing system. It s important to get this switch at just the right distance from the motor so that the door is able to close all the way but the motor also knows to stop running. Pull the emergency door release and check the up and down travel of the garage door for binding.

This most likely indicates that the garage door sensors are out of alignment or there is something in the way of the sensors. This is related to the up limit switch. If the diagnostic led on your craftsman garage door opener blinked two times then it means the safety sensor is disconnected from the garage door opener. This will explain how to troubleshoot a garage door opener that won t close the door and blinks 10 times.

Try making small adjustments. If this doesn t fix your problem then the problem is more than likely the safety reversing sensors. To troubleshoot this first check if any of the safety sensor wires have been disconnected behind your craftsman opener. Unplug the garage door opener to reset the logic board.