What s going on with the indicator light not lighting up after the Midea air conditioner is powered

It's obvious that there is a problem with the circuit. Check whether the socket is broken, whether there is a voltage output, and check whether the live wire input relay has a voltage input on the electric control board. Otherwise, the terminal block is in poor contact, see if the line is loose, if you are a user, I suggest that it is best to find a maintenance master to come to the door.

The power indicator is not lit, indicating that the power supply is out of power, there may be a plug and socket problem, you can check it, if the plug and socket is good, it is the power failure of the air conditioner, only after-sales **.

What happens when the air conditioner is plugged in but the lights don't come on?

The air conditioner does not turn on, often because there is a problem with the compressor of the air conditioner. In particular, the air conditioner that has been used for a long time has different degrees of compressor aging, so it is found that it cannot be turned on.

It may be that the remote control of the air conditioner cannot transmit the signal normally, and you need to check whether the remote control signal is transmitted. Use a digital camera or mobile phone camera to point at the transmitter port of the remote control, press any button of the remote control, and then see if the camera or mobile phone camera has a red light, which means that the air conditioner can transmit signals normally, and if not, it means that the remote control is broken.

Refrigeration settings

From the perspective of the summer air conditioner boot index, 30-33 belongs to level 4, and 70% of people need to turn it on; 33-35 is class 5, 90% of people need to turn it on. After turning on the air conditioner, pay attention to adjust the indoor and outdoor temperature difference, the room temperature should be set at about 24 -18, and the indoor and outdoor temperature difference should not exceed 7.

If the outdoor temperature is 32 degrees, the indoor air conditioner is generally 25 degrees.

When the air conditioner is cooling, the temperature is set to about 26-28, in this case, not only the human body feels more comfortable, but also conducive to energy saving. When the air conditioner is cooling, do not set too low temperature, when the room temperature is adjusted to 26-27 degrees, the cooling load can be reduced by more than 8%. Experiments have shown that under normal circumstances, the room temperature is maintained at 28-29 degrees and the humidity is maintained at 50-60%.

People don't feel stuffy, they don't sweat, they fall within the comfort range. When people are sleeping, the metabolic amount is reduced by 30-50%, and the air conditioner can be set in the sleep switch gear, and the temperature can be set 1 degree higher, which can achieve 10% power saving;

1. Causes of voltage:

If the air conditioner can't be turned on, it is necessary to check whether the external power supply is electric or whether the voltage reaches the rated voltage. If it is not the cause of low voltage, please check whether the indoor and outdoor units are connected correctly, whether the wires are aging, and whether the motherboard of the indoor unit is wired correctly, otherwise replace the motherboard of the internal unit.

2. If the electric buzzer does not sound, please check the transformer.

3. If the external unit has a voltage of 220V, check whether the red indicator light on the motherboard of the external unit is on, if the indicator light is not on, it is necessary to check whether the external unit connection line is loose, whether there is a direct voltage of about 300V between the power module P+ and N-, if not, check the reactor, rectifier bridge and wiring. If there is, but the indicator light of the motherboard of the external unit is not lit, first check whether the signal connection cables from the power module to the motherboard (a total of 10) are loose or poorly contacted, and then replace the power module, when replacing the module, the heat dissipation paste must be evenly coated between the radiator and the module. (If you don't know much about electricity, don't try it easily, so as not to cause unnecessary losses to yourself.)

4. If the outdoor unit has a power supply, the red indicator light is on, and the external unit does not start, you can check the communication between the internal unit and the external unit, (check method: press the "test" button once after turning on the computer, and observe the indicator light of the indoor unit), any kind of light flashing is normal, otherwise there is a communication problem; Check whether the connecting wire of the internal and external machine is a special flat wire, and replace it in time if not, so as to avoid similar situations again. If the communication is normal, please check whether the indoor and outdoor temperature sensor packs are open or short circuited or the resistance value is abnormal, and whether the overload protector port is connected.

If the above two methods cannot solve the problem, replace the outdoor controller.

5. If the air conditioner is turned on for about 10 minutes and cannot be started, please check whether the indoor pipe temperature sensor is open; If the machine is started again after starting, and the external fan is not started, check whether the indoor and outdoor temperature sensing heads are short-circuited.

The following areas need to be examined:

1. Check the power supply of the air conditioner. Method: Turn off the switch and turn it back on immediately. At this point, the beep of the internal unit can be heard, and you can see the indicator light on the air conditioner flashing, which proves that the user's power supply is normal.

2. Check the remote control: press the key on the remote control, if the triangle symbol is displayed on the screen, the remote control is normal; However, if the battery is used for a long time and the voltage is too low, the signal sent will be weak and the air conditioner will not receive the signal, so the battery should be replaced at this time.

3. If there is no problem with the above inspection, it must be that the receiving board is broken. (Note: The signal transmitted by the remote control to the internal unit is no more than 8 meters, it is recommended to operate near the internal unit!) If the above problems cannot be solved, please call the after-sales service ** and let it deal with it!

After the air conditioner is turned on, the indoor unit cannot work normally and the troubleshooting is as follows:

1. When the indoor unit of the air conditioner cannot work normally, the microprocessor in the control circuit of the indoor unit should be checked, focusing on the power supply circuit, reset circuit, clock crystal oscillator, eepr0m and other components of the microprocessor.

2. If the power supply circuit, reset circuit, clock crystal oscillator, eepr0m and other components of the microprocessor are normal, and the indoor unit cannot work normally, the above faults should be the fault of the microprocessor itself, which can be replaced by the microprocessor of the same model.

There may be several reasons why the power indicator of the air conditioner keeps flashing and does not work:

1. Air conditioning protection caused by sensor failure. (It is common to open heating in winter).

When the air conditioner is heating, due to the function of anti-cold wind, the indoor temperature sensor indoor heat exchanger works with a breeze when the indoor heat exchanger reaches more than 25 degrees Celsius, and works with the set wind speed when the temperature reaches more than 38 degrees Celsius. This failure occurs.

Solution: The above fault is first observed to find that the wind speed is low, and the air temperature is high, so check whether the fan is normal, when the wind speed is judged to be normal, the analysis may be that the sensor check temperature is incorrect, resulting in the indoor fan can not run at the set wind speed, so the sensor can be replaced to solve.

2. The receiver board is faulty and the air conditioner cannot be started.

Solution: You need to eliminate the problem of the remote control first, and you can use the detection method of the mobile phone camera to point at the infrared emission point of the remote control. If the problem of the remote control is ruled out, then the receiver board is faulty, and professionals need to overhaul the receiver board or replace the receiver board.

3. The control board is faulty.

Solution: If this kind of fault is concerned, professionals need to disassemble the machine to check the control panel and check whether there is any damage in the control panel of the air conditioner.

If the power indicator of the Midea air conditioner keeps flashing and not running, it may be due to one of the following reasons:

The battery of the remote control is not full or malfunctioning. Please replace the battery with a new one, or use a different remote control for testing.

The internal circuit of the air conditioner is faulty. In this case, it may be necessary to contact a skilled person for repair.

There are problems with the power supply line of the air conditioner, such as the plug is not plugged in tightly, the power line is not energized, etc. The family needs to check the wiring to ensure the normal power supply.

Other faults inside the air conditioner, such as compressor failure, capacitor damage, etc., may also cause the air conditioner to fail.

If you are unable to solve the problem on your own, it is recommended to contact the Midea Air Conditioning After-sales Service Center for further assistance.

Midea's air conditioner power indicator has been flashing and not working, which may be caused by the following reasons:

Control panel failure: The control panel of the air conditioner has a micro computer chip, if this chip fails, it will cause the air conditioner to fail to start properly.

Power line problem: The source line of the bucket key is damaged or the contact is poor, which will also cause the air conditioner to be unable to be destroyed and started frequently. You can be prepared to check whether the power sockets, power circuits and switches are normal.

Indoor and outdoor unit communication failure: The air conditioner needs to communicate between indoor and outdoor units to work properly, if the communication fails, it will cause the air conditioner to fail to start.

The power indicator of the Midea air conditioner has been flashing and not running, which may be that the air conditioner is preheating.

Hello! We're happy to answer for you! If the Midea air conditioner running light flashes a few times and it doesn't light up1, the power plug or socket is faulty If the Midea air conditioner running light flashes a few times and doesn't light up, the possible reason is the plug or socket of the power supply, such as poor contact or no power in the socket, etc., or it may be that the power circuit breaker is faulty.

Solution]: Check the plug and socket to make sure that the power supply is normal, and then try to turn it on, if these are still normal, you need to check other reasons. 2. When the wind speed is too high or too low When the voltage is too high or too low, it will cause the wind speed to be too high or too low, and it will also cause the running lights to flicker all the time.

Solution: Make sure that the voltage is stable and normal, and then adjust the wind speed within the normal range. 3. Sensor failure of the fan If there is a problem with the built-in Hall sensor of the fan, there will be a problem of running the lamp holding and closing and flashing.

Solution]: You can replace the sensor first, if it is back to normal, if it still does not return to normal, you need to replace the fan.

Summary. What should I do if the power light of the air conditioner does not light up, first check the blades of the indoor unit, the fan of the outdoor unit, etc., to see if the air conditioner can work normally, if it is working normally, it may only be the indicator light of the indoor unit that is faulty; If it doesn't work properly, check whether there is electricity in the socket, or if the fuse of the air conditioner is blown. Here's a closer look.

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 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; I hope it can help you.

What should I do if the power light of Midea's air conditioner does not turn on.

What should I do if the power light of the air conditioner does not light up, first check the blades of the indoor unit, the fan of the outdoor unit, etc., to see if the air conditioner can work normally, if it is working normally, then Bitenneng is only the indicator light of the indoor unit is faulty; If it doesn't work properly, check whether there is electricity in the socket, or if the fuse of the air conditioner is blown. The following is a detailed introduction 1, first check whether the air conditioning blades have been turned on, whether there is wind 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 Li Wu's 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; I hope it can help you.

The master level is high, can you tell me about other maintenance plans? Thank you, Master.

Hello dear, it means that your air conditioner is not working, you can turn the temperature to the lowest, if the running lights are still not working, you can open the lid of the indoor unit, there is a test button inside, Bi ordered to press the start machine, such as the stove number of limbs or does not work, it means that there is a problem with the external circuit, it is recommended to find a master to repair it. I hope it can help you.

If the Midea air conditioner lights are on, it may be due to the following reasons:

1.The control board is faulty. In this case, it is recommended to disconnect the air conditioner from the power supply and contact a professional technician for repair or replacement of the control board assembly.

2.Electrical interference issues, electromagnetic fields, or interference from other electrical devices can cause the air conditioner indicator light to flash abnormally. In this case, you can try to reduce the use of other electrical equipment or stay away from interference sources (such as mobile phones, other RF devices, high-voltage cables, etc.) to solve the problem.

3.The air conditioner has a problem with the banquet sensor. The internal sensor of the air conditioner may malfunction, causing the indicator light to illuminate and prompt a fault message.

You can try replugging the temperature sensor line connected to the air conditioner near the oscillating air diffuser inside the air conditioner and check if there is any change in the air conditioner.

If the above situation occurs, please check whether the installation and electricity consumption of the air conditioner are normal, and then choose the corresponding method according to the specific situation. At the same time, in order to avoid damage to the equipment or personal injury, please do not disassemble or repair the air conditioning circuit by yourself to avoid accidents.