If your door control has a lock button it may have been turned on.
Garage door opener sensor no light.
If one or both of the lights are off check the fuses breakers and plugs for problems.
Replace the opener sensors following the manufacturer.
Look for small led lights on the sensors.
Press the lock button to turn this feature off.
Check the mechanism s source and sensor leds.
If your garage door opener craftsman liftmaster chamberlain genie sommer decko has no power but it is plugged in the circuit breaker is on and you know for sure the electrical outlet has power then there is something in the garage door opener that is faulty.
For people who do not know the transmitter has the yellow light and the receiving sensor has the green light.
Raise the garage door using the control button on the garage wall or the remote control unit from a vehicle.
A common cause of a malfunctioning garage door sensor is lack of power supply.
The light will flash two times.
When the lock button is on the garage door opener will work from the door control but the remote controls are locked out.
The ceiling of the garage door.
The garage door sensor yellow light and the green light together create a solid illumination.
If you find the lights turned off in one or both the sensors it indicates that there is a problem in power supply.
Inspect each sensor to make sure the green or red power indicator lights are.
Remove the old safety eyes noting how they connect to the back of the operator mounted on.
If they re turned on in both the sensors then there is no issue with the power supply.
If you do not see a solid illumination or your garage door is not working the problem is most likely due to the sensors being out of line.
There is an electrical issue in the opener.