One is the arrow keys found on the opener and the second is through the small led light located next to the learn button.
Garage door opener learn button led light not flashing.
The remote control will not work.
This led light flashes a specific number of times.
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.
If the sensor indicator lights do not light replace the safety sensors.
Once you push this button the light on the garage door opener will flash twice.
If the learn led is flashing pausing and flashing again it is flashing an error code.
The answer don sent is correct.
This is an indication of an open wire usually due to a staple.
Since the lack of power supply is a common problem check the wires around the sensor when the led lights are not flashing.
If this doesn t fix your problem then the problem is more than likely the safety reversing sensors.
If your garage door opener is still blinking try realigning the safety reversing sensors.
Garage door sensor locations.
Inspect door control wires for a short staple in wire replace as needed.
To unlock your garage door opener push the lock button for 5 seconds.
Count the number of times the led light beside the learn button flashes before it pauses and begins blinking again.
Disconnect the garage door from the opener and cycle the opener.
Led is not lit on door control.
On the garage door opener pictured below the led light is between the square purple smart button and the purple antenna wire.
Assist you in troubleshooting your garage door opener.
Unplug the garage door opener and remove the cover.
Below is a diagnostic chart showing the common light code for the arrow.
The amount of times they flash corresponds to a specific opener issue.
Align sensors if the indicator lights glow replace the wires for the sensors.
Once you see the double flash press the control button on the remote control.
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.
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.
I am sending you an image showing what the flashes of the learn led mean.
Non stop flashing indicates rf interference in the area.
Sweep the garage floors and look through the sidings to ensure that there are no objects to obstruct the door.