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You will need a voltage tester to determine this. Put the tester across the top screw on the switch to the ground wire in the switch junction box. If there is an indication of voltage you can assume that the problem is further down the circuit. If there is no indication of voltage on the top screw then test between the bottom screw on the switch to the ground wire. Sometimes the "hot" is on the bottom screw. If there is no voltage present at the switch you have to work your way upstream towards the distribution panel to see what is interrupting the voltage.

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Q: How do you determine if the light switch has power?
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How can you determine if their is power at a light switch?

Use a volt meter to measure the voltage to neutral on each side of the switch. By turning the switch on and off and monitoring the voltage on one side and then the other, you can determine the supply and load side of the switch.


Can you power a light switch power to switch then to light from a switch beside the one you want hot the switch that you want to take power from has the white as hot switch after light?

I can not understand your question.


What is the problem on your 95 rodeo if there is power to the brake light switch and switch works but will not light any brake light?

Power is being interrupted; the turn signal switch is a power juction see if the power is flowing thru it.


How can you determine if a light switch is bad or if the wires running to the switch are bad?

take the switch off and wire a plug right to it and plug something in that should tell you if they are live but kill the power in that room first in the basement


Is it normal for tester to show hot on a light switch with it in the off position and no power going to the light it controls?

Yes. Even with no power to the light, there is still power to the switch. To power off the switch you usually need to open a circuit breaker.


How do you find out if you have a bad relay fuse on your gsxf katana?

with a test light ensure you are getting power out from the switch, at the same time you should be getting power out of the relay . if your not getting power to the switch but you do from the fuse it can also be in the line.-then determine the cause or keep a spare relay


What would cause a ceiling fan's lights and fan to stop working while the small LED on the wall switch still lights when it is switched on?

That led is only showing that there is power to the switch and/or the light and fan fixture. You would have to check the power at the fixture to determine if it is actually in the switched feed or the fan/light assembly.


How do you make a 2 way switch which breaks the circuit only when both the switches are turned off?

Send power to the 1st switch and then send the power from that switch when it is in the on position to the second switch. Then send power to the light from the second switch. That way both switches will have to be in the on position for the light to be on.


Is it still within code to run power from panel to light switch then to light?

You can either go to switch or to light first. I wired house for my brother ran power supply from junction box then to each switch then to light. Passed inspection no problem


Power is not off . need to change when you change the light switch?

Yes, you need to turn off the power when you change (replace) a light switch, since at least one of the terminals on the switch will always have power if the circuit is energized at the panel.


Why does bathroom light go off when you turn on bedroom light?

That's one I've never seen. Does the bathroom light turn ON when the bedroom light is switched Off? Does the bathroom light switch turn the bathroom light on and off normally when the bedroom light switch is left on? Need to answer these questions, then find where the bathroom light power comes from. It's power supply should either go directly from the power oanel to the bathroom light or to the bathroom light switch. The bathroom light switch merely acts as an interrupter for the hot leg of this power supply.


What is on off switch?

Say it is a power circuit, a light bulb is bright from the battery, flowing through the wires and the light bulb. There is a switch controling the power that goes through, so if you switched the off switch off, the power will no longer be flowing through(the light bulb wouldn't be bright any longer). Say it is a power circuit, a light bulb is bright from the battery, flowing through the wires and the light bulb. There is a switch controling the power that goes through, so if you switched the off switch off, the power will no longer be flowing through(the light bulb wouldn't be bright any longer).