The air conditioner s indicator light doesn t light up and doesn t work, what s going on?

1.Check whether the indoor and outdoor connection lines are correct against 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 it is due to the replacement of the indoor unit (or outdoor unit) transformer, the two wires of the transformer's primary winding can be swapped.

The machine was inspected as having a poor indoor electromechanical control board. Machine troubleshooting after replacing the electric control board.

What happens if the air conditioner runs and the light doesn't turn 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.

Analysis and maintenance method of air conditioner 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 it is due to the replacement of the indoor unit (or outdoor unit) transformer, the two wires of the transformer's primary winding can be swapped. The machine was inspected as having a poor indoor electromechanical control board. Machine troubleshooting after replacing the electric control board.

For more information, please contact us.

Generally, it is 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 it is due to the replacement of the indoor unit (or outdoor unit) transformer, the two wires of the transformer's primary winding can be swapped. The machine was inspected as having a poor indoor electromechanical control board. Machine troubleshooting after replacing the electric control board.

Precautions for the use of air conditioners.

Pay attention to the sound of the air conditioner running. When you hear abnormal noise when the air conditioner is running, such as metal collision sound, motor hum sound, shell vibration sound, etc., you should immediately shut down the machine to check the reason, and do not blindly continue to use it to avoid greater damage.

Frequently wipe the exterior surface of the aircon, especially the panel parts, to keep the aircon clean. Dust the outdoor cooler with a long-bristled brush every six months. By removing the movement every year and injecting the appropriate lubricating oil into the fan motor bearings, the refrigeration system does not have to be treated, as long as the dirt on the surface is removed.

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 it is due to the replacement of the indoor unit (or outdoor unit) transformer, the two wires of the transformer's primary winding can be swapped. The machine was inspected as having a poor indoor electromechanical control board. Machine troubleshooting after replacing the electric control board.

For more information, please contact us.

1. After the air conditioner is turned on, the indoor unit and the outdoor unit do not respond to the following faults:

When the air conditioner is turned on, the indoor unit and the outdoor unit do not respond to the fault, the main thing should be to check the power supply circuit of the indoor unit and the outdoor unit, such as whether the 105V voltage and 1012V voltage at the power output end are normal.

There must be a problem with the power supply line.

It is suspected that the pressure or temperature protection switch is damaged.

It is recommended to check whether the remote control of the air conditioner can be used normally, and if it is determined that it is a problem with the remote control, it can be repaired or replaced in time.

2. Failure of the air conditioner diode lamp beads: When there are some abnormal faults in the lamp beads of the diode inside the air conditioner, the display light of the air conditioner will naturally not have any reaction.

Therefore, contact the air conditioner after-sales service in time to repair and replace the air conditioner with a new air conditioner interior display light.

3. Failure of indoor electromechanical control board

The communication line of the transformer of the electromechanical control board in the air conditioner room is defective, which will cause the terminal of the transformer to fail to transmit signals normally, resulting in the phenomenon that the display light does not respond.

Summary. The indicator light of the air conditioner does not light up or flash because 1. First check whether the air conditioner blades have been turned on, whether there is wind coming out, or whether the outdoor unit has the sound of running, if it is working normally, it is likely to be due to the failure of the indicator light of the indoor unit;

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 that the remote control is not normal, you can try to replace the battery to see if it is caused by no power; or use the mobile phone as a remote control to control the air conditioner;

The air conditioner's indicator light doesn't light up and doesn't work, what's going on?

I'm still a little confused, can you be more detailed?

The indicator light of the air conditioner does not light up or flash because 1. First check whether the air conditioner blades have been turned on, whether there is wind coming out, or whether the outdoor unit has the sound of running, if it is working normally, it is likely to be due to the failure of the indicator light of the indoor unit; 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 that the remote control is not normal, you can try to replace the battery to see if it is caused by no power; or use the mobile phone as a remote control to control the air conditioner;

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.

Hello, it is recommended that you call the official maintenance department and ask them to send someone to repair it with you.

1. Check the indoor and outdoor connection lines against the wiring diagram to see if they are correct.

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.

Other causes and solutions of air conditioner failures:

1. The wind speed of the internal machine is fast and slow, and the wind sound is loud. This is caused by not cleaning the filter for a long time. Solution: Clean the strainer.

2. There is no response when pressing the remote control. Solution: Find out if the air conditioner is powered on. If the running light is on, it is recommended to replace it with a new battery.

3. The newly installed machine makes a sound when the wind swings. Solution: Because the newly installed pendulum shaft is too wrinkled just now, you can drip a little lubricating oil on it.

1. Insufficient refrigerant. Usually refrigerant, refrigerant, freon, refrigerant and other names refer to air conditioning refrigerant.

Solution: Add air conditioning refrigerant.

2. The tightness of the automobile air conditioning belt is not appropriate. If the belt is too tight, it will directly cause the compressor to get stuck and not run; Loose belts can cause slippage of compressor transmission power, intermittent refrigeration, and reduced power.

Solution: Adjust the belt tightness.

3. There is a problem with the circuit system. For example, if the circuit is short-circuited or short-circuited, the path of power transmission is directly lost, and the electromagnetic clutch cannot control the working state of the compressor normally. Since you can't see the actual car, you can't make an accurate judgment.

Solution: It is recommended to go to a professional auto repair shop or 4S shop in time to let the staff check it, and the staff's reply shall prevail.

The air conditioner light is generally not lit because the indoor and outdoor units cannot communicate Solution: 1. Check the indoor and outdoor connection lines against the wiring diagram to see if they are correct. 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. Other causes and solutions of air conditioner failures:

1. The wind speed of the internal machine is fast and slow, and the wind sound is loud. This is caused by not cleaning the filter for a long time.

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 if the air conditioner compressor is faulty. 4.Check whether the fan is turned on, whether the temperature control is 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 for refrigeration.

Check whether the power supply of the air conditioner is plugged in, whether the switch is closed, and whether the power supply is normal.

Confirm that it is not a power supply problem, if you will not check it, contact the after-sales service.

This is generally due to a certain degree of instability, mainly due to the problem of electricity.

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.

What is the problem that the display screen of the Gree air conditioner does not light up but can work normally?

It could be caused by some parts not working properly. The first thing you have to do is check the remote control, it should have screen options and see if it works when you press it during the session. If it doesn't work, the lines of the screen may be damaged.

Find a special master to look at the air conditioner. Nothing was too much trouble. Method:

On the back of the Gree air conditioner remote control is written how to turn it off, how to unlock it, and operate it according to the manual. Press and hold the "+" button and the "-" button together at the same time to unlock and close, and the back of the remote control should be written. There is a small hole on the back of the Gree air conditioner remote control that says unlock and close.

Press it with a toothpick or other sharp object and check the display for the "lock" sign. If not, it means that your Gree air conditioner remote control has been unlocked successfully. If there is, there should be no problem.

The easiest way is to remove the aircon battery and install it within a few minutes so you can restore the factory setting mode. Gree fixed frequency air conditioner display E5 stands for - low voltage protection (overcurrent protection).

Gree inverter air conditioner shows E5** - indoor and outdoor communication failure.

Gree split cabinet air conditioner shows that E5 is - low voltage protection, current blocking protection.

Gree fixed frequency air conditioner shows E5 maintenance method:

Check if the voltage is too low, and the user can be advised to install a voltage regulator. Whether the external mechanical capacity is damaged. Whether the heat dissipation of the external unit is good, and whether the air filter of the internal unit and the condenser of the external unit are too dirty.

The MPU is faulty. Replace the control board gripper.

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

Does the external machine work? If it works, it could be a system issue. If the external machine is not working, it is a circuit problem. Don't you have a remote control? Play Refrigeration 16 to see work? I'm an aircon maintenance worker, don't understand please ask.

What's going on when the indicator light on the Gree air conditioner doesn't turn on.

Flashing means that the display is faulty, it does not display the screen, use the indicator light to show the cause of the failure, generally flashing, flashing twice and then flashing a few seconds apart, the method is different! Look at a few flashes of light to determine the cause of the Hui Song disorder.

The air conditioner display light is not on, it can be started manually, and the remote control has electricity but the remote control cannot turn on the air conditioner.