If you find the light switch won t turn off immediately after you ve installed it it s probably because you wired it wrong but if the switch has been working and suddenly you find the light stays on when the switch is off the switch is malfunctioning.
Wall light switch not working.
Fix a wall light switch with help from a residential and commercial contractor in this.
One mechanical failure easy enough to recognize is an internally broken toggle where the lever inside is unable or only occasionally able to activate the contactors.
Other reasons may be more complicated like a faulty device or short circuit.
Diagnosing light switch problems.
If the light switch isn t working at all there may be no power to the circuit.
That is especially common if you are using an unreliable cfl light bulb.
The light switch on a wall can be repaired using a number of common tools you may already have in your home.
Make sure your voltage tester is working before you test the switch.
Are you trying to figure out why a light bulb appliance or light fixture is not working when you flip the switch.
This is the simplest solution you ll want to try first that may fix the issue.
Make sure the breaker to the switch is on in your breaker box and determine whether there are any other tripped outlets and switch them on as well.
If you have several light switches or light fixtures that are not working then there may be a short in the electrical wiring or most likely a loose connection has developed.
The problem is probably that the toggle has disconnected from the circuit terminals.
Usually it s a simple solution like a burnt out light bulb.
If the light had been flickering however you ll probably need to go a bit further.
This problem can be felt by touch as the plastic piece is usually loose in the switch without any spring tension.
Typically the location of the electrical short will need to located after identifying all of the affected devices that are on the circuits that are not functioning.