Needed to turn another circuit off to change a bathroom light fixture. In the process of finding the correct breaker for this project, another circuit was tripped for my dining room where there is a Leviton 120va/ca 60Hz 600w touch dimmer with on off slide switch controlling 4 potlights. Atfer the circuit was turned back on a few minutes later 2 of the 4 potlights went out and I could no longer turn off or dim the other 2 pot lights that were still on. It is not the bulb as I tried to change one of the potlights that was out. Is this possibly an issue with the dimmer switch or a more serious electrical wiring issue. House is only 8 years old. Not sure when the dimmer was installed as we are 2nd owners. Thank You, Karen Thank you,

This is my first thought. Do you have GFI in you house.
I lost power on my front porch one time, found out it was the GFI in my bathroom tripped. Reset it and everything was good. Nothing wrong with the GFI it was my kids playing with it.

You say the breaker supplies power to just one or two lights? And no outlets, fans, attic circuit? Map out all affected electrical boxes.
Move wire from suspect breaker to another same-size breaker and see what happens.
Move wire from the other breaker a to newly installed breaker, to check if breaker is main suspect.

Open each switch and outlet box affected by suspect breaker.
Disconnect power at light switch, and see if breaker still has problem.
Unplug all things from outlets on circuit.
One by one, check each electrical box for burned wires and loose wires.
Use nose to smell for burned condition.

Add a comment and update as you progress through troubleshoot.
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Okay, this sounds like fun. Are you confident in opening the breaker panel and removing the wire from the breaker? Make sure that the breaker is off when you do this. By removing the wire, we determine if the breaker is faulty. If the breaker still trips when there is no wire on it, then it is faulty and needs to be replaced. Now, if the breaker is good, then take an ohm meter and check the resistance between the disconnected wire and the neutral wire (white) for that circuit. You should have the settings on the meter to the highest resistance. You should read infinite resistance, if not, then it could be a faulty receptacle or light socket in the circuit. Sometimes the plastic in the device (socket or receptacle) can develop a carbon path that may or may not show on an ohm test. When 120 volts is applied it arcs and sometimes shorts out. Assuming that you have a low resistance you need to find the device that is faulty. If you have a high resistance, you will still need to find the fault. Reconnect the wire, and leave the breaker off, and you should remove a device on that circuit and by process of elimination, check the circuit one device at a time.

Hi, I know it sounds simple but sometimes its the simplist things that get you. Check your earth, as it sounds as if this may be causing the problem.

Hi,

1 Turn off the light switches and unplug appliances in the room that has lost power.

2 Find your circuit breaker box and open the cover.

3 Locate the tripped breaker. Circuit breakers are small, usually horizontal switches labeled by the areas of the house they serve (for example, "kitchen," "bathroom" and so on). The tripped circuit breaker will be in the "off" position or in a middle position between "on" and "off."

4 Reset the breaker by moving it to the full "off" position and then back to "on." That may clear an overload and return power to the room. If the breaker re-trips, you may have too many lamps and appliances plugged into the circuit; a damaged cord or plug; a short circuit in a receptacle, switch or fixture; or faulty wiring.

5 Identify and correct the malfunction before resetting the breaker.

Please post your feedback and Vote if the problem resolved as per your satisfaction.

The reason why the breaker stays tripped is a result of a direct short. Unplug every electrical device plugged into an outlet in both rooms and try the breaker. If it stays on, individually start plugging in each device until the breaker trips, that is the defective device. If the breaker stays tripped, start checking wall outlets for short circuits with an ohm meter. If you did not find a short, check your hard wired lamps and appliances for shorts. If you did not find any shorts the only other problem is a shorted pair of wires in the wall or ceiling. You will need to disconnect any hard wired lamps and appliances and check for shorts between individual pairs of hot (black) and neutral (white) then hot and ground. I have a short circuit finder, but you do not need one because the technology is not perfect and you may have to manually check for shorts with a meter anyway which never lies.

The lights may all be on the same circuit, but are they all connected to the GFCI (as in if you hit the test button do all the lights go off with the GFCI)? If so that's ok, but not really necessary. The places you see lights connected to GFCI's are in bathroom lighting where there is a built in receptacle in the light that can be used by someone. If it is only a light I see no reason for it to be connected, which brings me to my last point. If the lights are not connected to the GFCI the GFCI may still be drawing current from the circuit. A GFCI is a device that protects a person using anything plugged into it by sensing a rise in current. Many times a GFCI can be faulty or ultra senstive, where even the smallest amount of current can trip it. Replace your GFCI and the problem should fix itself. Just make sure to connect nothing to the side taped with yellow tape (the load side) if nothing was connected to the load side before (the lights would be connected here if they were before).

You have a ground fault on one of them. Disconnect the fixtures one at a time until the rcd (gfci) does not trip. then replace or repair the bad one.

hello, all you have to do is to get a new breaker with the same amperage or amp's example 15 amp's of the breaker that's blown and pop out the old one and put in your new one , in the future when working with electricity always manual trip the breaker before working for your safety and the safety of the equipment .good luck

I would check your breakers again your oven breaker is a double one .. one of them may not be turned back on...