What is the reason why the EV charger does not respond and the indicator light does not light up?

Today I will give you an answer about electric vehicles.

What is the reason why the charger does not respond and the indicator light does not light up? What should I do if the power indicator of the EV charger does not light up? Teach you problem-solving and self-leading skills.

The battery charger indicator does not light up. Generally the charger is broken. The charger is not connected to a power source.

Thirdly, the charger indicator is broken. The reason why the indicator light does not light up after the EV charger is plugged in is that the power cord is broken.

Make sure the charger input power plug is properly connected and plugged into a normal power outlet.

If the situation does not change, please open the case of the charging product and confirm the fuse in the machine.

Whether the connection is correct and whether there is an open circuit.

If the circuit is not open, confirm that the power input cable is not damaged. After troubleshooting the power input line, check the parts near the high-voltage area of the board for virtual soldering.

Opening may cause the above failures. If the machine's fuse breaks, do not replace the amps.

Fuses (The fuses of the charger are usually. Focus on checking whether the parts are damaged. If there is damage, replace it with the same type.

Extended information: Precautions for using electric vehicle chargers, the charging voltage and current of the charger should be the same as that of electric vehicles, and 5 battery chargers cannot be used to charge 4 batteries. When charging, users should pay attention to the charging port that inserts the battery before plugging in the power plug.

While the user is charging, the charger should display a red light. When fully charged, the green light comes on. Once the charging port is plugged in, the green light will stay on to find out why there is no charging.

If the electric secondary length does not take time, it is necessary to fill it up. Users should turn off the main switch under the seat and place it indoors or in a cool, dry place.

It is strictly forbidden for users to disassemble the charger secretly. Because of the high internal voltage, there is a risk of electric shock, especially with wet hands. I hope mine can help you, and I also hope you can help me**, like, support me more, and follow me more.

The reason is that the power supply line is disconnected. Check whether the charger input power plug is connected, you can plug the charger input plug into the normal power socket, if the situation is still the same, open the charging shell, observe whether the fuse connection in the machine is intact, whether there is an open circuit, if there is no open circuit, now check whether the power input line is good. After troubleshooting the power input line, check whether the components near the high-voltage area on the circuit board have false soldering.

It may be because of the battery circuit problem, or it may be because the charger is unstable, these are the reasons that will lead to such reasons, go to a professional store to find a professional master for maintenance.

There is a problem with the bulb of the indicator light, and the indicator must be replaced in time, so that it can be lit up and there will be no big problems.

It is very likely that the power cord of the incoming power has failed, and you need to go to the 4S shop for repair in time, and do not deal with it yourself, causing the problem to become more and more serious.

If the electric vehicle charger does not light up, it may be that the indicator light of the electric vehicle charger is broken, for example, the electric vehicle charger is used too frequently, which may cause a short circuit, and the moment of the short circuit will affect the light-emitting diode of the electric vehicle charger, and the light-emitting diode is damaged but the light will not be on. It is also possible that the EV charger is broken, and you can replace it with a new one.

The normal situation of the power cord under the condition of the indicator light is also on, but the charge is not charged, we use the same method in the amount, plug in the battery wire whether there is a broken circuit, if there is a plug-in wire, if it is normal, then we observe the circuit board, plug in the battery line at the end of whether there are traces of burning, carefully look at the red circle on the picture is the traces of being burned, if there is a thin wire, use the soldering iron to find a solder place according to the original line, and solder the wire to both ends of the line.

Precautions for battery car chargers.

It should be noted that the parameters of the charger equipped with different models are basically different, so do not replace the charger at will when you are not sure. If you need a new charger, go to the store where you bought an electric car and get a special charger.

Electrical appliances are basically not resistant to strong vibration, and strong vibration may cause the potentiometer inside the charger to drift, causing the charger charging state to be abnormal, and even causing accidents. Therefore, chargers should generally not be placed in the trunk and basket of electric vehicles. If you really want to carry it, you should wrap the cushion and place it in the toolbox on the car to avoid bumps and vibrations of the charger caused by bumps.

After the battery car charger is charged, the indicator light does not light up, can the charger continue to charge next time? If it can be charged, then there is no problem, this is normal, it is full of automatic power-off kind, the kind with power-off protection, to prevent the battery from being charged, if it can't be charged next time, it is the charger burned out, because the indicator light on it is not lit, there is a problem, so each charger manufacturing process is different, and it cannot be simply judged that it is damaged.

There are two possibilities, one is that the charger indicator is bad, and the other is that the charger is faulty and the battery cannot be charged.

The reasons why the indicator light does not light up after the electric vehicle charger is plugged in are: 1. The power cord is disconnected, check the plug to the circuit in the charger, and test whether the 220V in the charger is normal; 2. Rectifier circuit failure; 3. The circuit fuse in the charger is broken; The 4,305V voltage is abnormal and the power management chip is damaged; 5. The charger has no output. After overhauling and eliminating various possible fault factors, it can be charged normally.

It should be that the charging light is broken, this is nothing, you look at the sale of the car with a new flush point to see, and whether it can be charged.

The charger is broken. An electric car charger is a charging device specially configured for the battery of an electric bicycle! Classification of chargers:

With and without power frequency (50 Hz) transformers can be divided into two categories. Freight three-wheel chargers generally use chargers with power frequency transformers, which are large in size, heavy in weight and consume electricity, but reliable and cheap; Electric bicycles and electric motorcycles use so-called switching power chargers, which are power-saving and efficient, but they are easy to break.

The correct operation of the switching power charger is: when charging, insert the battery first, and then add mains; When sufficient, cut off the mains power first, and then unplug the battery. If you unplug the battery first while charging, especially when the charging current is high (red light), it is very easy to damage the charger.

The commonly used switching power supply chargers are divided into two categories: half-bridge and single-excitation, and single-excitation is divided into two categories: forward and flyback. The half-bridge type has high cost and good performance, and is often used in chargers with negative pulses; The single-excitation type has a low cost and a high market share.

The indicator light of the battery car charger is not lit, usually due to the fact that the charger is broken.

The second is that the charger is not connected to the power supply.

The third is that the charger indicator is broken.

Hello, the reasons why the electric vehicle charger light does not light up are: 1. The charger power cord is broken; 2. The charger is broken; 3. The fuse in the charger is broken; 4. The charger model and specification used by the battery are incorrect; 5. The battery may be damaged, etc. If the electric car charger light is not on, you can go to the repair shop to check it specifically.

The location of the spark, you don't express it clearly, it's difficult to diagnose. The possibilities are:

1. If the spark occurs in the charger shell, it should be that the capacitor and control IC have been broken down, and if it is within 1 year, the manufacturer and the merchant can basically replace it (industry regulations);

2. If it is not connected to the output terminal of the battery, and the spark is on the input line, it should be a short circuit (burned) of the inner wire, at this time the charger itself should be good, but the input line needs to be replaced (after opening, change it with a soldering iron, the effect is the best).

3. The input plug (positive and negative terminals) bursts with sparks, so that the two ends will have traces of being burned by the current, at this time, the socket part should be in poor contact, and the charger should be good.

In the electric vehicle industry, the manufacturer's after-sales service is actually very loose (I am the manufacturer of accessories), you root the dealer to say a few more good words, others will definitely give you a change; If you have a ticket, and within a year, that's not to mention.

Hope it helps, good luck!

What is the problem that the electric car charger light does not light up?

The indicator light does not light up after the electric vehicle charger is plugged in

When the power cord is disconnected, check the plug to the circuit in the charger and test whether the 220V in the charger is normal.

Rectifier circuit failure.

The circuit fuse in the charger is broken.

Maintenance method: look, capacitance: the more obvious feature is that the capacitor contains a certain solution, in the over-standard working environment, the capacitor will heat up and explode to relieve the unbearable pressure of the body and mind.

Use a digital multimeter to measure the circuit of the suspect part, generally we use the diode file to measure, that is, the short circuit of 2 meter pens, the multimeter will be called the file, and some necessary discharge behaviors will be done before measuring the resistance.

Performance Judgment:

For example, 48V charger, the maximum voltage is not greater than, greater than this voltage, the charging may not turn the light, the low voltage is not less than 55V, below this voltage causes insufficient charging, it is easy to lose power to the battery for a long time, current, such as 48V20A charger, the maximum current is not more than 3A.

Greater than 3a may cause the battery to lose water earlier, the minimum is not less than. The low voltage of this current causes insufficient charging.

Answer: [Happy] [Happy] Hello! Glad to answer your questions, if it's what you're looking for trouble give a thumbs up oh, thanks! There are five reasons why the indicator light does not light up after the EV charger is plugged in:

1. When the power cord is disconnected, check the plug to the circuit in the charger and test whether the 220V in the charger is normal;

2. Rectifier circuit failure;

3. The fuse in the charger is blown out;

v. The voltage is abnormal and the power management chip is damaged;

5. The charger has no output.

How to check the problem: the charger is not plugged in, after connecting to the power supply, the large capacitor has a voltage of 300V, if the power supply is unplugged, the 2nd end of the large capacitor is still 300V voltage, then the starting resistance of the charger is broken, and you can switch it; If the 300V voltage is slowly dropping after unplugging the power supply, it should be that there is a problem with the circuit board of the charger, and then you can check whether the circuit board is desoldered.

Kiss. If you are satisfied with my service, can you please give a 5-star thumbs up? Have a great day and a lot of money thank you!! Zuo Yi].

Hurry up and change one, the charger is not worth much compared to the battery, don't ruin the battery because of a small loss!

The reasons why the EV charger does not light up are mismatch between the battery and the charger, quality problems, blown out of the charger fuse, burned out internal capacitors of the charger, and so on.

1. The battery and charger do not match

A mismatched charger can cause the battery to move heat from the power supply while charging, resulting in hot heat.

2. Quality problems

When charging the battery of an electric vehicle, a large amount of hydrogen needs to be volatilized, but the new battery generally does not have this kind of hot condition, because it is processed by the manufacturer, and the temperature is constant.

3. The charger fuse is burned out.

The charger of the electric vehicle has been used for a long time, which may cause the fuse inside to burn out, once it burns out, the charger has no way to charge the battery normally, you can go to the repair shop for corresponding inspection.

4. The internal capacitor of the charger is burned out.

After using it for a long time, the capacitor may burn out, so it cannot be charged, and the indicator light will not be lit, so you need to go to the repair shop in time to find a maintenance master for testing or replace the charger with a new one.

Notes:

Constant current charging of electric vehicle charger means that when the battery is charged, the method of segmented constant current is used for charging, and the current is achieved by adjusting the charging chain. Its main feature is that the charging method has great adaptability, and the charging current can be selected and adjusted arbitrarily. As a result, batteries can be charged in a variety of situations and states.

It is particularly suitable for charging batteries that are connected in series by many cells in series in a long period of time with a low current, and is good for charging batteries with slower capacity recovery.

However, because the charging current of this charging method is too small at the beginning stage, and the charging current is too large again in the late stage of charging, so the whole charging process is long, the precipitation gas is more, the impact on the plate is large, the energy consumption is high, the efficiency is low (not more than 65), and the whole charging process must be supervised by a special person. Therefore, it is only used for the initial charging of the battery and when it is necessary to desulfurize and recharge quietly and coarsely with a small current for a long time.

1.The converter or fuse of the charger is damaged First check whether the charger is fault-free, the general charger damage is mainly the converter and the fuse are damaged, if the converter is damaged, it can not be charged directly, the correct way is to replace the converter or insurance. 2.

Battery failure Check whether the battery is obstructed, you can use a multimeter to check whether the battery is faulty, find the battery and repair it, if it can't be repaired, replace the battery. 3.Check whether the connecting cable has fallen off and connected the sail Jane Check whether the connecting line has fallen off and connected around the battery, which is generally manifested as the loose interface or the missing line is corroded, if this situation occurs, it needs to be replaced and wired again.