Chances are you have run into this problem before and it is one of our most frequently asked questions. There are a number of things it could be but more times than not it’s the little sensors at the bottom of the door. Below is a break down from LiftMaster on how to handle this problem.
The LEDs on both the sending and
receiving sensors will glow steadily when the wiring connections and alignment
are correct. The amber LED on the sending sensor will glow regardless of
alignment or obstruction. If the green LED on the receiving sensor is off, dim,
or flickering (and the invisible light beam path is not obstructed), alignment
is required.
Note: On the older safety sensors both LED lights are green. The
receiving sensor is the sensor that the green light goes out when you pass your
hand in front of the sensor. The sending sensor stays solid.
- Remove the receiving sensor(green LED) from bracket. You can do so by taking off the wing nut.
- Point the sensor away from the sending sensor, so that the LED light is completely off.
- Once the LED light is off, wait 10 seconds.
- Slowly rotate sensor back until it lights again. When you have a strong green light, put it back into the bracket and put the wing nut back on.
NOTE: If you are unable to get the door closed and the safety
sensors are the issue, the garage door can be closed by pressing and holding
the Door Control push bar until down travel is completed.
If you are still running into issues be sure to contact us, if we can assist you on the phone we will. If not we have factory trained service technicians ready to assist you in your time of need. For more information about our garage door service feel free to give us a call at 858-751-2580 or visit us at www.gdugaragedoors.com and click on the contact us page.
Cheers,
Shawn Black
Garage Doors Unlimited
858-751-2580 | http://www.gdugaragedoors.com/
