What is the reason why the indicator light suddenly does not light up when the air conditioner has b

In the heat of summer, the air conditioner brought us a fresh coolness and saved us from the heat. But even if the air conditioner works for a long time, there will be a possibility of a strike; If the air conditioner indicator light at work suddenly does not light up, we need to check the specific reason why the indicator light goes out.

In many cases, it is because of a sudden power outage from the outside world, which causes the indicator light of the air conditioner to go out and stop the corresponding work. Of course, it is also possible that the circuit of the air conditioner is faulty, causing the indicator light of the air conditioner to lose power, thus extinguishing the display.

On the whole, the air conditioner that has been working for a long time and the indicator light suddenly goes out is most likely due to the following reasons:

1. External factors: power failure and tripping Summer is a high-frequency season for air conditioning, and as the weather becomes hot, the time for every household to turn on the air conditioner, as well as the number of air conditioners, will increase accordingly.

In such a situation, it is very easy to cause the nearby substation to be burned out due to overload.

With the destruction of the substation, the corresponding air conditioner and other electrical appliances have lost their power supply. In this case, the corresponding indicator light will naturally go out.

Faced with this situation, we just need to wait for the power department to repair it, and then send the power over again.

2. Internal causes: the failure of the air conditioning circuit is also very prone to aging if the air conditioner has been used for a long time. In this case, if it is used in summer, it is easy to fuse due to high temperatures.

Once the wiring is burned, it means that the air conditioner is faulty and cannot work properly. At this time, we only need to check whether other electrical appliances in the home can work properly.

If it is confirmed that the air conditioner is damaged, you need to contact professional after-sales personnel to come for repair. For us ordinary people, we must not turn on the air conditioner without permission, and then repair the wiring.

Therefore, when the air conditioner does not light up, there are two most likely reasons; One of them was a power outage, and the other was a malfunction of the air conditioner.

The indicator light is damaged. The air conditioner is still running, but the indicator light is not on, which means that there is no problem with the air conditioner, and it is OK to replace the accessories of the indicator light.

It may be because the air conditioner has been used for too long and the indicator light is broken, and you should find a maintenance worker in time to repair it.

In the hot summer, the air conditioner brings us cool coolness and prevents us from being disturbed by the heat. However, even air conditioners that work for long periods of time can malfunction; If the indicator light of the air conditioner suddenly does not turn on during work, we need to check the specific reason why the indicator light goes out.

The reason why the air conditioner indicator does not light up but the air conditioner continues to work may be that the diode bead of the indicator light is broken, but other functions of the air conditioner are not affected and can still continue to work.

If the power light of the air conditioner does not turn on, you should check whether there is electricity in the socket first, followed by the power cord of the air conditioner. Check that the fuse is not blown. The fuse needs to be replaced.

Do not power it on after replacing. Check whether the power supply item is broken, short-circuited, etc. If the power indicator was originally on and is now off, it means that the internal unit is fused or the transformer is damaged.

The remote control is not normal, turn on the mobile phone camera function, and then point the transmitter of the remote control at the mobile phone camera, under normal circumstances, the infrared signal emitted by the remote control by pressing any function key will display a little white light on the mobile phone screen.

There are many reasons why the light of the air conditioner unit does not light up, which may affect the normal use of the air conditioner, so in daily life, it is necessary to pay attention to the maintenance of the air conditioner.

1. Seasonal maintenance of air conditioners. When the air conditioner is not used for a long time, in order to fully dry the inside of the air conditioner, it should first run in the air supply mode for 4 hours, add some lubricating oil to the fan motor part, then cut off the power supply, and then cover the air conditioner with an envelope, and cover the outdoor body with a protective cover to avoid sun and rain. At the same time, wipe the remote with a clean, soft, dry cloth and remove the battery.

When reusing the air conditioner, it is necessary to do a basic cleaning and do an operation test.

2. In-depth maintenance of air conditioners. Professional and technical personnel are requested to carry out comprehensive and thorough cleaning and maintenance of the core components of the air conditioner from the inside to the outside, so as to find the hidden problems of the air conditioner in time, effectively extend its service life, and be healthier and more energy-saving. The in-depth maintenance of the air conditioner is generally sufficient once every 2-3 years.

It means that the air conditioner indicator is broken, and it is OK to replace it with a new one.

There are many reasons why the air conditioner display light does not light up, and the most common one is that the main power switch is faulty, or the indoor and outdoor units cannot communicate.

Solution to the air conditioner display light not illuminating:

1) If the main power switch fails, you can change the indoor electromechanical control board and so on;

2) Check whether the indoor and outdoor connection lines are correct according to the wiring diagram;

3) Change the outdoor electrical control board, if the fault still exists, check whether the wiring of the indoor unit is correct;

4) Replace the indoor electrical control board, if it is due to the replacement of the indoor unit (or outdoor unit) transformer of the poor communication phenomenon, at this time, the transformer can be replaced by two wires of the primary winding. If the machine is inspected for the defective indoor electrical control board, the machine will be troubleshooting after replacing the electric control board.

The air conditioner is OK, but the display light is not lit when it runs, so you first have to see if it is set to sleep, and if it is true, the light display is broken, so you can change the display light.

If this fault has to ensure that the remote control is normal and cannot be opened, then first check the power input circuit components on the motherboard, such as: power supply insurance, AC filter capacitor, and varistor and other components are normal.

If the above checks are normal, then measure whether the primary and secondary winding coils of the small power transformer are normal, if normal, then measure whether the two groups of rectifier filter circuit components of 10 12V and 105V are normal.

If it is also normal, then measure whether the 10 12V voltage and the 10 5V voltage are normal, if there is an abnormality, then focus on checking, the 12V three-terminal voltage regulator chip and the surrounding components of the chip, and the 10 5V voltage regulator circuit components.

Care & Maintenance:

Usually, the household air conditioner will be shut down and stopped in September, and it will not be turned on until May to June of the following year, and it will be out of use for more than half a year, so the air conditioner must do a comprehensive "diagnosis" before turning on and check whether the air conditioning equipment has "faults";

According to the results of the inventory, under the guidance of professional and technical personnel, do a good job of maintenance and cleaning, this maintenance and cleaning should be in place, including the shell, body, and filter of the outdoor unit and the indoor unit, and then start the trial operation to observe the refrigeration speed and effect.

After the air conditioner is turned on, the maintenance times during the air conditioner start-up process are determined by many factors such as environmental conditions, climatic conditions, number of hours of start-up, surrounding dust, air cleanliness, and whether the room is clean.

Hello, I'm glad to serve you, your question is being inquired, please wait for a while Third, if there is no problem with the above, it is the air conditioner failure, it is recommended to find a professional master to check and repair. Or contact the after-sales service of this brand, and you can repair it free of charge within the warranty time.

The above is the relevant information for you to query, please refer to it, I hope to help you Hello! Is there any other question I can ask you to help you with? We look forward to hearing from you again and wish you a happy life!

1. Turn off the display (but the air conditioner is cooling).

2. The air switch at home tripped.

3. The fuse tube on the power strip is broken.

4, 7805 7812 on the circuit board is likely to be broken 5, the power supply is broken.

2-5) There is no air conditioning coming out.

If you are a user, you will take a look at the first two, if the first two are okay, you are still better off after-sales**.

Is the air conditioner working properly? Did you turn off the LCD panel of the air conditioner?

The remote control has a digital display, and it lights up when you press it.

What happens when the air conditioner running light doesn't turn on?

If the air conditioner light is not lit, it is generally indoors, and external machines cannot cause communication. Check whether the indoor and outdoor connection wires are correct according to the wiring diagram.

Replace the outdoor electromechanical control board. If the fault persists, check whether the VTH is wired correctly.

Replace the indoor electromechanical control board.

Other causes and solutions of air conditioner failures:

The wind speed in the machine is fast and slow, and the wind is strong. This is caused by the fact that the brother has not been instructed to clean the screen for a long time. Workaround:

Wash the screen. The remote control is not responding. Workaround:

First find out if the air conditioner has a power supply. The running indicator light is on, and it is recommended to replace the battery with a new one. This new machine makes noise when it swings.

Solution: Since the newly installed pendulum shaft is wrinkled just after use, you can add a little lubricating oil to it. Details can be found at **.

The indicator light of the Gree air conditioner keeps flashing.

Whether it is a patio air conditioner or a wall-mounted air conditioner, it is easy to absorb a large amount of dust on the filter screen when the air conditioner is running, and then the air conditioner is easy to alarm and shut down. When there is an alarm, you first need to check the air filter, press the button of the air conditioner indoor unit, and then open it to see the cover and air filter. Open the lid at an angle of 45 degrees to the ceiling, then lift the lid to remove the entire cover.

Both sides of the entire filter are stuck on the cover, and one side needs to be toggled to open the toggle switch to both sides, and it needs to be toggled back to the inside for installation. There are two holes stuck in the lid on the other side of the filter that can be removed by simply pushing the entire filter. Finally, you need to use a brush to brush the filter or rinse with tap water, and there is no dust when rinsing.

Most of the air conditioning phenomenon is due to this, and it can be done and tried for families.

The air conditioner can be used normally, but the indicator light is not on, and the temperature indicator light is not on, what is going on?

What's in front?,250,The remote control has a screen display button.,Press it to switch My air conditioner can run.,But the indicator lights on the air conditioner aren't on.,What's the reason for this?

You can try to press the "Light" button on the remote control, and it will display normally.

There are many reasons why the air conditioner does not turn on, and the most common one is that the main power switch is faulty, or it is caused by the inability of indoor and outdoor units to communicate.

The solution to the air conditioner running light not lit:

1. If the main power switch fails, the indoor electric control board can be replaced.

2. Check whether the indoor and outdoor connection lines are correct according to the wiring diagram.

3. Replace the electrical control panel of the outdoor unit, if there is still a fault, check whether the wiring of the indoor unit is correct.

4. Replace the electrical control board of the indoor unit, if the transformer communication of the indoor unit (or the outdoor unit with rubber is replaced) is not good, then the two-wire transformer of the primary winding can be replaced. If the electronic control board of the indoor unit is found to be defective, the machine fault can be eliminated by replacing the electric control board.

1. What happens when the air conditioner running light is not on?

This should not be a problem with the compressor, if there is a problem with the compressor, the light should be on when it is first turned on, and then it will be protected immediately, or tripped. You get electricity from another outlet to the air conditioner to see if it's normal. Or let's take a look at the main power switch first, and whether it's the air switch for the air conditioning socket is not on.

2. Analysis and maintenance method of air conditioning running light not lit:

According to the phenomenon analysis, the fault is generally caused by the inability of indoor and outdoor units to communicate. The main reasons and maintenance methods are as follows:

1) Check whether the indoor and outdoor connection lines are correct according to the wiring diagram;

2) Replace the outdoor electrical control board, if the fault still exists, check whether the wiring of the indoor unit is correct;

3) Replace the indoor electromechanical control board. If the judgment is due to the poor communication phenomenon caused by the replacement of the indoor unit (or outdoor unit) transformer, then the two wires of the primary winding of the transformer can be exchanged. The machine was inspected as having a poor indoor electromechanical control board.

Machine troubleshooting after replacing the electric control board.

How to deal with the car air conditioner light not lighting and not running:1Check whether the switch is damaged, whether the switch circuit is open, and whether the air conditioner fuse is blown out.

Check the electromagnetic clutch for damage. 3.

Check whether the air conditioner compressor is faulty. 4.Check whether the fan is turned on, whether the temperature control is wide and turned to the refrigeration area, some models need to turn on the fan and turn the temperature knob to the refrigeration area, the air conditioner will be lit up and run refrigeration.

The reasons why the air conditioner light doesn't turn on are as follows:

1. First of all, check whether the air conditioning blades have been opened, whether there is wind coming out, or whether the outdoor unit has the sound of running.

2. If it can't work normally, check whether the socket has electricity, followed by the power cord of the air conditioner, check whether the fuse is fused, and if it is fused, it needs to be replaced.

3. If the power indicator light was originally on and is now off, the internal unit insurance or transformer is damaged, and the general air conditioner will not be refrigerated and operated, but will be shut down directly;

4. It may be a remote control.

If it is not normal, you can try to replace the battery to see if it is caused by a lack of power; or use the mobile phone as a remote control to control the air conditioner;

5. If the power supply voltage at home is too low, it will not be able to drive the air conditioner to start normally, and there will be an abnormal reaction that the air conditioner does not respond to the start and the display light does not turn on. In this case, it is best to ask after-sales maintenance personnel to come to test the voltage and install a voltage regulator.

Can. This answer is applicable to most brands of air conditioners such as Gree, Midea, and Haier.