The following links will assist you with your electrical question. If you do need to change the light switch you can follow these steps.
An Electrician Explains How To Wire A Switched Half Hot
Light switch has power but no light. If that does not work then you may have lost a connection with the neutral wire of the circuit. Took the bulb out and there is power at the fitting its a two way switch and they are both working as power goes off when switches are off. If the power line feeds through the switchs junction box with the light fixtures wires also coming from the same box then the hot wire black from the power feed hooks up to one of the terminals on the switch and the black wire from the light fixture to the other terminal with the two white wires pigtailed through a wire connector. Lighting for the home. This is the simplest solution youll want to try first that may fix the issue. Z wave switches require power to flow through them all the time this is how they have power to light up their status led and listen for z wave commands even when the light is off.
If you have power from hot to ground but not hot to neutral then you have a losebroken neutral. If you have a charge coming to the switch but it still doesnt work you need to replace the light switch. Replacing a bad light switch. Hey jim try replacing the light bulbs. You no longer see the voltage because you just completed the neutral circuit for the bulb. Diagnosing light switch problems.
Identify the wiring for a the light switch. Compare the wiring to the wires found at the light switch in the room. No power to a light switch wiring for a the light switch. Theres two ways to accomplish the switch having power. Hi all a light in my friends house has stopped working about the time a different light switch was changed. Wiring a dimmer switch.
Let say you have line hot going into a light bulb and the switch is connecting to the neutral side of the light bulb. When the switch is in the off position. If the tester lights up you have power to the circuit. Test the ground again and if it lights up the wiring is working correctly. Test for power from hot to ground and hot to neutral. 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 do not break this tab off both upper and lower receptacles have power through the lower receptacle and that is why the upper receptacle has power regardless of light switch position. If the light switch isnt working at all there may be no power to the circuit. When you turn the switch on. Tried different bulbs and none working. You should be getting near 120v on any working receptacle or light switch but very rarely will you get exactly 120v. What you are measuring is the line voltage going across the bulb to neutral.
For the switch to have power means that the power has to flow through a completed circuit. Compare the wiring to the ceiling fan wiring diagrams found at the links i have provided below. Start by examining the wiring in the electrical box where the ceiling fan is located.
Gallery of Light Switch Has Power But No Light
