Check the light source power of the switch
If you don't have a working bulb handy, consider using a light socket tester or a multimeter to verify the functionality of the fixture. Determining if power is present at the switch box is a necessary first step, whether you are diagnosing a non-functional light or ensuring safety before a component swap. To check the voltage, turn off the circuit breaker or remove the fuse to the room where the light is installed.
Read More