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The most common reason why the lights are not lit at home is that there is a problem with the bulb, the filament in the bulb is disconnected and the wiring of the inner wire of the lamp head falls off, which may cause the light to not light up, just change the bulb. Secondly, the switch that controls the lamp has poor contact, which will also make the lamp not light up, which requires the replacement of the switch panel. The last reason is also the most complicated situation, that is, there is a problem with the line, and the lights are not lit due to broken wires and short circuits in the line, which will be a lot of trouble to deal with.
First of all, we need to confirm the situation of the problem, and if we find that the light in our room is not on, we should first check the other rooms. If it's just that the light doesn't come on, check the outlet. If all of them are not lit, we can check the route.
Because we can only move on to the next step if we have figured out the actual problem. Secondly, make a corresponding plan according to the problem of the lamp: when we check that only one light is not on and the other lights are on, first confirm whether the bulb is good or bad.
After confirming that you are done, you can go and check the lampholder. Procedure: Disconnect the power supply with a screwdriver.
Remove the base of the lamp; Send electricity, use a multimeter.
Measure the neutral line and the live wire, both are normal, that is, the lampholder is broken, and a new lampholder can solve the problem; If there is a problem with the neutral line or the live wire of the lamp, then it is a problem with the wire. Switch problem: If the light is controlled by a separate switch, check the switch first.
Often the possibility of switch damage will be relatively large, especially like voice switch, sound and light switch, delay touch switch, etc., which are easy to break. The easiest way is to change the switch to a new one, because the switch check of the lamp is more troublesome, and it is much more convenient to change it directly. Problems with the line:
If you find that the lights are not on, it is a problem with the line; At this time, we must first find the circuit gate to see if there is a trip problem. If there is no tripping situation, you can use a tool to check whether there is electricity at the lower gate of the gate, if not, the gate is broken, at this time we go to replace it with a new one; If there is electricity at the lower gate, it is a circuit problem, we can use the on-off function of the multimeter to find the wire in sections to find the breakpoint.
Plug or change the line later; There is also a situation where these lights are controlled by a switch, and we just replace the switch of the light.
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1. If you are using energy-saving lamps with starting devices, check the starting device, if not, then see if the electrical appliances used are consistent with the corresponding power supply voltage, if not, it may be that the voltage is too high to cause damage to the lamps, and the specific situation is not on the spot, it is difficult to answer accurately. It is recommended to find an electrical maintenance technician to investigate on the spot to find out the cause.
2.If it is a 3-wire two-light line, when the two-way switch is fully closed, the 3-wire should be 2 fire and 1 zero mode, and I suspect that the two wires of your living room light are connected to the two live wires. It is equivalent to one lamp only connected to the live wire, and the other lamp only connected to the neutral wire.
3.The lamp is damaged, and the filament burns out after flashing, causing the lamp to not light up.
The starter is faulty.
Ballast failure.
The line is faulty, and the relevant line flashes and burns out.
The switch is faulty, the switch is in poor contact, and it cannot be stabilized in the closed state after closing.
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The light in the living room is suddenly not on, you can step on the ladder or step on the table, turn on the wiring of the wire of the living room light, connect a light bulb at the wiring, if the light bulb is on, it means that the light bulb in the living room is broken. If the light bulb does not light up, the switch of the light must be broken.
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Now the circuit or electrical appliances in the family are generally used to bury the power cord in the wall, first to make a simple judgment to see if it is a problem of aging the line, you can test the position of the electric pen in the socket to see if there is electricity. When taking the lamp, it is best to knock down the main switch of the electricity first and turn off the power, so that the operation is safe.
When it is ruled out that it is not a circuit problem, buy a lamp of the same model to try it out, see if the lighting tube can be used normally, and pay attention to the two ends of the lamp holder to be clamped. It's best to bring a wooden ladder so that it is easier to get the tube.
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The lights suddenly went on for the following reasons:1. Check whether there is no electricity bill and pay in time.
2. Check the circuit fault situation, whether the main switch or the line of the lamp has tripped, and the rated power and rated voltage of the bulb are too high, resulting in the circuit tripping lamp not lighting.
3. Check the tungsten wire in the lamp, because this is the more common reason why the lamp is not lit.
In the above situations, you can solve the situation that the light suddenly does not turn on.
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1. Open circuit problem: For example, the filament is broken, the wire end is broken, the switch is open, etc., which will cause no current to pass through the appliance, so the lamp cannot shine normally.
2. Short circuit problem: In a wire socket, once the neutral wire and the live wire collide, it will cause a short circuit. Once a short circuit occurs, the fuse will be burned for a long time, and in serious cases, the line will be burned and cause a disaster.
3. Overload problem: Once the total power of the electrical appliances used in the circuit is too large, the line can not bear it, and the fuse will eventually be burned.
4. Circuit connection problem: If the two wiring of the socket are connected to the same wire when the connection is made, it will cause the bulb to be in a state of series connection, and the bulb in series will not light up.
Precautions for the use of lamps and lanterns.
Lamps and lanterns must be used under a predetermined voltage and frequency, and all grounded lamps and lanterns must be checked frequently to prevent the harm caused by leakage.
Ordinary lamps and lanterns should not be used in and near heaters such as electrical, gas, kerosene stoves, etc., or in places where steam is directly encountered, so as to prevent high temperature damage to lamps and lanterns, and at the same time bring harm to people.
Try not to repair lamps in dangerous places such as gas and steam, as it is easy to conduct electricity in a humid environment. Do not place items such as paper cloth near or cover the illuminator.
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1. Open circuit problem. For example, if the filament is broken, or the end of the wire is broken, the switch is open, etc., it will cause no current to pass through the appliance, so the lamp cannot shine normally.
2. Short circuit problem. In the socket of the wire, once the neutral wire and the live wire collide, it will cause a short circuit, once a short circuit occurs, the fuse will soon be burned off, and in serious cases, the electrical circuit will be burned and cause a disaster.
3. Overload problem. Once the power of the common electrical appliances in the circuit is too large, it will cause the circuit to be unable to bear it, and eventually the fuse will burn out.
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1 may be the live wire is broken, you can use an electric pen to measure whether there is electricity through the bulb, the zero line is broken, it cannot form a loop, and the light will not be on;
2. The live wire and neutral wire are short-circuited, and no current passes through the bulb;
3. The rated power and rated voltage of the bulb are too high, and the power supply voltage used cannot reach this value, and the light is not on.
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Most likely, the bulb is broken.
In the case that other electrical appliances are running stably, if only the headlights are not on, then it may be that the lights are broken, or the lamp ports are broken, or even the lines are broken.
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The lights in the room suddenly stopped coming on, it was possible that the bulb was broken, and of course, it was not ruled out that there was a short circuit in the wiring, or it was indeed caused by a power outage. There are many reasons, and the specific situation should be dealt with on a case-by-case basis.
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The lights in the room suddenly stopped working, and it was generally due to a power outage in the community.
It is also possible that the air switch in your home tripped, causing a power outage.
Finally, there is another possibility, and the last one is that some electrical appliances used at home leakage and leakage, and the protection switch automatically trips.
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The lights in the room suddenly went off, and it was possible that the fuse was burned. You see if the other elevators in the room are still bright, if the other elevators are still like that, it may be that the electric switch has tripped. You just have to restart the switch and close it.
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Hello, the light in the room suddenly did not turn on, it is likely that the light bulb in the room here is caused by the aging of the wick here, you can just change the light bulb, I hope my answer can help you.
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The lights in the room suddenly don't turn on, to see if there is a power outage or an overload trip, if neither of these two cases, it may be a simple light bulb burned.
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The lights in the room suddenly didn't turn on, this situation is mainly tripped, and it is easy to trip when there is high power, so you have to look at the air conditioner or induction cooker, turn off the power and start again.
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There must be many reasons for this, and if you use too much electricity, it is normal to break the gate all at once. Or if there is a short circuit in any place, it is also possible, and there is an arrears of electricity bills, and there is also a possibility of a sudden power outage.
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The lights in the room suddenly went off and were most likely burned bulbs. If it's just that one of the light bulbs doesn't light up and everything else is normal, it may also be tripped.
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More suddenly, suddenly, more suddenly, what is the situation, what is the situation, what is the situation, what is the situation? It can also be a power outage, a power outage, or a drop, or a power outage, or a circuit, or a power outage, or a circuit short-circuit, or a short-circuit trip, or a power outage, or a circuit short-circuit tripped.
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If the bulb is broken or there is a power outage, first check whether it is a power outage in arrears or a power outage in the area, and if not, change the bulb.
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If such a thing happens, I think one of the main reasons may be that the lamp is broken, or the lamp is burned out, so this kind of thing will happen directly, or there is a problem with the circuit in your home.
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The lights in my room suddenly go on, but the lights in the other rooms are on? The circuit at home generally uses a parallel circuit, so the light in your room is not on and has nothing to do with other rooms, which can also show that the light in your room is not on is the reason why the bulb is broken.
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Hello, I think it might be a power outage or a broken light bulb.
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If the lights in other rooms can be turned on, it means that the lights in this room are broken.
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The lights in the room suddenly turned off, consider whether there is a power outage or a short circuit in the wires, or maybe the lights are broken.
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1. Open circuit problem.
For example, if the filament is broken, the wire end is broken, the switch is open, etc., it will cause no current to pass through the appliance, so the lamp cannot be normal.
Glowed. Check the main switch with an electric pen first to see if there is electricity. If there is no electricity, you only need to repair the electrical wiring in the house.
2. Short circuit problem.
In a wire socket, a short circuit can occur if the neutral and live wires collide. Once a short circuit occurs, the fuse will be burned, and in serious cases, the line will be burned and the disaster will be triggered. Repairing a short circuit requires a professional electrician with special tools, and you should not try it easily at home.
If it is a short-circuited wire, it can no longer be used because it has a great safety hazard.
Line leakage is the early symptom of a short circuit in the line, and it must be done immediately once the leakage occurs. In this case, it is also necessary to hire a professional electrician to operate, although the cost is high, but after all, safety first.
3. Overload problem.
Once the total power of the electrical appliances used in the circuit is too large, the line cannot bear it, and the fuse will eventually be burned.
4. Circuit connection problems
If the two wiring of the socket are connected at the time of connection.
A wire will cause the bulb to be in a series state, and the light bulb in the series will not light up.
5. Power outage problem
Check to see if there is a power outage in your area.
Electricity Saving Tips:
1. Choose energy-saving lamps: fluorescent lamps save electricity compared with incandescent lamps. The brightness of the 20-watt fluorescent lamp is even better than that of the 40-watt incandescent lamp (a better environmentally friendly and energy-saving product, the LED fluorescent lamp, 2 watts can replace the 40-watt incandescent lamp.)
4 watts can completely replace 20 watts of ordinary fluorescent lamps and 20 watts of ordinary energy-saving lamps).
2. Make full use of reflection and reflection: if the lamp is equipped with a suitable reflector, the illumination can be improved. The use of the reflection of the indoor wall and the white wall can also improve the illumination by about 20%.
3. Always keep the bulb and lampshade clean to ensure the highest lighting and light reflection effect.
4. The installation height should be appropriate. For example, a 20-watt fluorescent lamp, if it is installed 1 meter high, the illuminance is 60 lux; Michael is Lux. Lowering the height appropriately can reduce the wattage and save electricity.
Only LED can be done by some businesses, if it is installed 2 meters high, the illumination is about 200 lux; 3 meters high, about 96,200 lux), so it is useful to use LED lighting products to save energy.
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The lights in the home are not on, which can rule out non-electric light damage. The lines at home are divided into lines, such as: socket all the way, lighting all the way, kitchen all the way, air conditioning all the way and so on, one of them may be overloaded or leaked to the total trip, you can turn off the air switch first, close the main switch first, and then close all the way, you can always find the problem of the way.
If you don't have a little hands-on ability, it is recommended not to operate, after all, it is too dangerous to operate without knowing electricity.
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First of all, check whether the lower circuit is in the state of Unicom. Then check if the light is broken.
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