Sweep the garage floors and look through the sidings to ensure that there are no objects to obstruct the door.
Garage door opener learn button led light not flashing.
Once you push this button the light on the garage door opener will flash twice.
Led is not lit on door control.
This is an indication of an open wire usually due to a staple.
Liftmaster light blinking liftmaster comes with two methods of self diagnosis.
Align sensors if the indicator lights glow replace the wires for the sensors.
This led light flashes a specific number of times.
If this doesn t fix your problem then the problem is more than likely the safety reversing sensors.
One is the arrow keys found on the opener and the second is through the small led light located next to the learn button.
Below is a diagnostic chart showing the common light code for the arrow.
Many times the malfunction can be due to a loose connection or broken wire.
The remote control will not work.
Garage door sensor locations.
To unlock your garage door opener push the lock button for 5 seconds.
I am sending you an image showing what the flashes of the learn led mean.
Step 3 go to the safety sensors and follow each of the wires where they staple to the wall and ceiling if the led blinks one time and pauses.
Inspect door control wires for a short staple in wire replace as needed.
Once you see the double flash press the control button on the remote control.
Non stop flashing indicates rf interference in the area.
Since the lack of power supply is a common problem check the wires around the sensor when the led lights are not flashing.
Count the number of times the led light beside the learn button flashes before it pauses and begins blinking again.
Here are the most common problem indicators and solutions for common garage door openers.
There is a led light next to or near the smart button programming learn button on the outside of the motor cover up above the antenna.
The answer don sent is correct.
If the learn led is flashing pausing and flashing again it is flashing an error code.
The amount of times they flash corresponds to a specific opener issue.
If the sensor indicator lights do not light replace the safety sensors.
Unplug the garage door opener and remove the cover.
If there are white shaving inside the unit replace the gears if the opener is moving less than 6 to 8 inches 15 20 cm the rpm sensor may not be functioning properly.
Disconnect the garage door from the opener and cycle the opener.
