You can test the switch with a voltage tester to determine which is the problem.
Ceiling light doesn t switch off.
You must remove the cover plate and switch to expose the joint.
If the switch is bad you should replace it because you can t fix it.
If you see black or burned areas this may be a sign that your ceiling fan light kit has a wiring issue.
If the switch is miswired it s easy to rewire.
Verify how many discrete capacitors black parts are in the housing where the fan switch is located.
If a dual capacity switch is installed in a fan with just one capacitor the fan will not turn off.
The wiring joint behind the switch on the wall can also fail.
Look inside of the light bulb socket to make sure there are no burn marks or charred spots.
3 if you have only 1 wire instead.
In this way the pull chains on the fan will operate the lights and fan as you wish.
Screw them into.
Removing the wire nuts from the wires connected to the switch will help.
This could be on the switch itself at the circuit breaker panel or in a pass through wire connection in the wall box or ceiling box.
If things look good return light bulbs that are in working order into their sockets.
By far the most common problem is a loose wire connection at the switch itself which is subject to constant on off usage.
Here the voltage carrying conductor can induce a voltage in the conductor separated from the switch.
A typical non contact voltage detector ncv and a typical mains tester.
Your fans and the fan lights work just fine because they are always getting power from the black unswitched wire in the ceiling box.
If a light switch won t turn off it could be because it s miswired or just a bad switch.
2 you would want to be fairly certain the outlet has little metal tabs that connect top and bottom on each side.
Light will not turn off using light switch 1 some electrical outlets have metal tabs on the side that connect the upper and lower receptacles.
A single capacitor switch and a dual capacitor switch.
Both switch types have 4 wire connections.
Use a continuity tester to see which red black pair are connected disconnected by the switch.
This means that there is a low voltage in the ceiling light even when it is switched off which causes the led to light up weakly.