Within 30 seconds of pressing the learn button press down on a button on the remote.
How to check liftmaster garage door opener.
Now try opening the garage door once again with the remote control.
Liftmaster garage door openers troubleshooting support get the liftmaster garage door support you need from chamberlain group.
Firstly make sure there are no obvious obstructions.
Next clear the beams of any dust debris and or cobwebs that may have accumulated on the sensor lenses.
Under the front light lens under the left light lens if facing the garage door opener opposite side of where the antenna is on the garage door opener tip.
They are usually blue in color.
If you see the part number the model number is typically on the other side under the light cover.
In the future when the unit receives that specific signal it will open the garage door it s attached to.
Increase the opening force setting slightly.
Locate the manual force adjustment dials at the back of the liftmaster garage door opener.
Hold down a button on your remote garage door opener.
If you notice the door reverses when closing you want to check the sensors first.
This will send out a radio signal to the ceiling mounted motor unit.