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Ok, lets assume that these are not newly installed lights or lights added to this already existing circuit first what type of lights are they? the reason I asked is because if they are fluorescent lights it could be a faulty ballast. if it's regular light bulbs then they are several things to look for. how many lights on this breaker? have you placed a higher wattage bulb in these lights than recommended? what is your combined wattage? a 15 amp breaker is rated to supply power safely up to a maximum of 1440 watts. add up the wattage of each light bulb including any outside flood lights or outlets also on this circuit. If the the total is under 1440 watts then first replace the breaker with the same wattage rating then turn each light one at a time and wait to see if the breaker trips again. If it does, check the last light you switched on. Answer for USA: Never load a breaker to its full rating. The law allows only 80 percent of the breaker rating. That's the 1440 watts for a 15 amp breaker, and 1920 watts for a 20 amp breaker. Also look for a load you might not think is on the breaker, such as an outdoor light, or something in a hall or another room. Other causes: - A motor draws more current when it starts than when it runs. - An aging breaker, or one that has been overloaded too many times, can trip at a reduced current. If this is the case, it needs to be replaced.

IF YOU ARE NOT ALREADY SURE YOU CAN DO THIS JOB

SAFELY AND COMPETENTLY

REFER THIS WORK TO QUALIFIED PROFESSIONALS.

If you do this work yourself, always turn off the power

at the breaker box/fuse panel BEFORE you attempt to do any work

AND

always use an electricians test meter having metal-tipped probes

(not a simple proximity voltage indicator)

to insure the circuit is, in fact, de-energized.

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14y ago
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14y ago

There is a short circuit on the circuit that the breaker is feeding. This means that somewhere the "hot" wire is either touching the ground return wire or the neutral wire. If there are devices plugged into the same circuit as the lights, which there often is, unplug everything and then try to reset the breaker. If the breaker holds then start adding the unplugged devices until the breaker trips again. Now you have found the problem that needs to be rectified.

Before you do any work yourself,
on electrical circuits, equipment or appliances,
always use a test meter to ensure the circuit is, in fact, de-energized

IF YOU ARE NOT REALLY SURE YOU CAN DO THIS JOB
SAFELY AND COMPETENTLY
REFER THIS WORK TO QUALIFIED PROFESSIONALS.

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19y ago

Assuming the circuit breaker is good, you have either an open neutral or an open hot wire leading to your lighting circuit.

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15y ago

They must be supplied from a different breaker panel. If you don't know how to find the source of the power to those lights you should ask a licensed electrican to advise you further.

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Q: When you turn the house lights on the breaker blows why?
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Why do some lights go off in your house when you turn on too many appliances?

In a well designed house the lights are not connected to the same circuit as an appliance. If by going out you are saying that a breaker trips, then your appliances and lights combined are exceeding the rating of the breaker. You either need to rewire and balance the loads better or plug high current appliances into different outlets on another breaker. If you are not tripping breakers, but lights are just dimming you have a bigger problem with inadequate current supplying your house.


Parking lights will not turn off is it a relay or circuit breaker?

It is a relay or switch problem. A circuit breaker or fuse won't keep a light on.


How do you make your electric bill go up?

Turn every appliance and device on in the house. If the main breaker trips, turn a few devices off until the breaker does not trip. Prepare for a bill in the hundreds of dollars.


How do you replace a 15 amp breaker in the circuit box?

The breaker will have a black wire connected to it. Turn off the main breaker and then disconnect that black wire from the breaker. The breaker will snap into the main bar. Remove the breaker and install the new one. Reconnect the black wire to the breaker and then install the cover and turn the main breaker back on.


When a home circuit breaker opens the lights in some rooms go off but the lights in some rooms stay on. Explain why.?

The circuit breakers in a panelboard feed separate circuits. The lights that stay on are on a different circuit than the ones that go off. To fine the circuit that feeds the lights that stay on, go to the panelboard and turn off the breakers one by one until the lights go out. This is the circuit that feeds that circuit of lights. Remember that lights and receptacles can be on the same circuit together.

Related questions

Why do some lights go off in your house when you turn on too many appliances?

In a well designed house the lights are not connected to the same circuit as an appliance. If by going out you are saying that a breaker trips, then your appliances and lights combined are exceeding the rating of the breaker. You either need to rewire and balance the loads better or plug high current appliances into different outlets on another breaker. If you are not tripping breakers, but lights are just dimming you have a bigger problem with inadequate current supplying your house.


Would you be able to run sixteen TVs and sixteen games consoles in my house I am worried my house won't be able to cater for these due to a lack of electricity or maybe it blows the power HELP?

It depends on how big the breaker box is for your house, in my old house i couldnt have all the lights on at once because it would blow a fuse and i would have to go outside and mess with the breaker box. considering its 16 tvs AND game systems i would say unless you are rich and have a HUGE HUGE house with a breaker box made for a hospital then most likely you will blow a fuse when attempting to turn them all on. Its not the smartest choice. When you blow a fuse all or most of your lights will go out and unless you know where your breaker box is and how to fix it then i dont recommend you trying that much at one time.


Parking lights will not turn off is it a relay or circuit breaker?

It is a relay or switch problem. A circuit breaker or fuse won't keep a light on.


When do you turn off all the lights in your house?

You should turn off all lights that you are not using.


Shop vac trips house breaker?

If the Shop Vac is tripping the breaker to a house turn other electronics off while it is in use. The power in the house should be checked out by a electrician.


Fuse marked meter blows out apon starting car no brake lights or turn lights?

A loose or corroded ground wire will cause the fuse to blow. Check the ground wires on your brake lights.


Are you suppose to turn of all the lights?

When you leave a house, yes.


How do you find a short in an 97 Nissan Sentra that blows the fuse for the tail lights and dash lights when you turn the lights on?

Try removing bulbs from all exterior lights turn switch on to see if fuse blows--if not replace one bulb at a time to determine where problem is. If fuse blows without bulbs could very well be switch "dead shorted" to ground IM HAVING THE SAME PROBLEM SO IF YOU FIGURE IT OUT PLEASE LET ME KNOW AT GODLIVERKILLA@YAHOO.COM A mechanic told me that the switch that is on the column is usually the problem. Cost about 70.00 . Raygracik@msn.com


How do you make your electric bill go up?

Turn every appliance and device on in the house. If the main breaker trips, turn a few devices off until the breaker does not trip. Prepare for a bill in the hundreds of dollars.


On your 1985 Toyota pickup the fuse blows out when you turn on the lights the head lights stay on but not the rear lights?

Check wiring and sockets for dead short to ground at: Parking/Tail and dash lights Remove all bulbs and sockets -replace 1 at a time until fuse blows Investigate that socket Check wiring and sockets for dead short to ground at: Parking/Tail and dash lights Remove all bulbs and sockets -replace 1 at a time until fuse blows Investigate that socket


If the lights turn on and off and it is not raining what does it mean?

or somebody is trying to break in your house


What can cause the turn signals odometer etc to go dead besides a circuit breaker on a 2002 Harley Sportster?

check and see if you have cut or pinched the wire harness going into the switch housing on the throttle side... i pinched mine and lost brake, turn lights,,, still had tail lights in the turn signals but that is because i was using a brake/turn controller on the rear lights...