If you do not hear a click replace the logic board.
Troubleshooting my chamberlain garage door opener sensor no light.
If you hear a click replace the light socket.
If they re turned on in both the sensors then there is no issue with the power supply.
The clicking noise you are looking for is the sound that comes from the relay on the circuit board.
Disconnect your chamberlain garage door opener from the garage door by pulling the emergency release handle down and back towards the garage door.
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Manually lift the garage door and release it when it is opened halfway when the door is appropriately balanced it will neither move up or down but stay in place supported by the springs.
Look for small led lights on the sensors.
This does not apply to garage door openers that use a work light that is separate from the garage door opener.
A common cause of a malfunctioning garage door sensor is lack of power supply.
If you do not hear a click coming from the motor housing then the relay on the circuit board is bad.
Hopefully one of these options worked for you.