Midea KFR 72L Bp2DN1Y PA400 B3 What is the problem when the external machine stops after a few secon

Hello! The main reason for this sound is that the compressor does not work! There are a number of possible reasons for this:

1. If the starter or protector fails, you can't power up the compressor 2. The compressor itself is faulty and can't be started 3. If it's a computer refrigerator, you should also consider the failure of the control board It is recommended that you contact the after-sales service for on-site maintenance! Hope mine can help you!

Either it's a problem with the compressor starting capacitance or a problem with the control circuitry.

It is recommended to contact after-sales service or ask a professional for maintenance.

Most of them are faulty motherboards.

There are too many frions. Causes excessive current, excessive current through the inductor on the circuit board, and automatically protects the shutdown.

The heat dissipation conditions of the host computer are too poor, causing excessive current, and the current passing through the inductor on the circuit board is too large, so as to automatically protect the shutdown.

There are two heat-sensitive resistors on the evaporator of the indoor unit, the black one is the indoor temperature sensor, and the copper one is the evaporator temperature sensor, and this phenomenon will occur after the resistance is damaged.

It may be that there is a certain degree of leakage of refrigerant in the pipeline of the air conditioning system, or the capacitance of the outdoor fan is aging and the capacity is attenuated.

When there is a certain degree of leakage of refrigerant in the system pipeline, the suction temperature and exhaust temperature of the air conditioning compressor will increase, and the refrigeration effect of the air conditioner will become worse.

Summary. 1. The fault of Midea's inverter air conditioner display E3 refers to the failure of the outdoor ring temperature sensor;

2. It may be caused by the failure of the outdoor circuit board without fan output, the outdoor fan is broken, the capacitor is broken, or the fan speed is out of control;

3. You can check whether the wind wheel will be stuck, and then turn on the machine to the air supply to see if the fan is rotating, not rotating, or the wind speed of the fan is not adjustable;

4. You can also short connect the LPP plug on the main control board and the neutral line N on the motherboard, if the indoor unit is running normally, you can determine that the main board or display board of the indoor unit is fine, and the fault appears on the indoor and outdoor unit connection wires, plug joints or low-voltage switches of the outdoor unit.

Midea inverter hang-up KFR - 35W BP2N - 180 will display E3 when turned on

Dear, Midea's inverter air conditioner shows that the E3 fault refers to the failure of the outdoor ring temperature sensor. The reason for the failure of the hidden position may be that there is no fan on the outdoor circuit board, or it may be due to the outdoor fan stopping and dismantling the leather hall to stop working, or the speed of the fan is out of control, etc., and it is necessary to apply for after-sales on-site maintenance. The details are as follows:

1. The fault of Midea's inverter air conditioner display E3 refers to the failure of the outdoor ring temperature sensor; 2. It may be caused by the failure of the outdoor circuit board without fan output, the outdoor fan is broken, the capacitor is broken, or the fan speed is out of control; 3. You can check whether the wind wheel will be stuck, and then turn on the machine to see if the fan is rotating, or if the wind speed of the fan is not adjustable; 4. You can also short connect the LPP plug on the main control board and the neutral line N on the motherboard, if the indoor unit is running normally, you can determine that the main core board or display board of the indoor unit is fine, and the fault appears on the indoor and outdoor unit connection wires, plug joints or low-voltage switches of the outdoor unit.

Summary. There are many reasons why the air conditioner can't be turned on: the first remote control reason:

1. The screen appears garbled or frozen. Press the reset button to disarm, or the battery is low. 2. The temperature is not displayed.

In air supply or automatic mode, the temperature is not displayed. 3. If the receiving head is broken or cannot work normally due to moisture, check the transmission of the remote control signal. Aim your digital camera (mobile phone is also acceptable) at the transmitter and press any button to see if there is an infrared signal emitted.

What is the problem that Midea KFR-72LW DY-PA400 (R3) cannot be turned on after it is powered on?

There are many reasons why the air conditioner can't be turned on: the first point is the remote control reason: 1. The screen is garbled or frozen.

Press the reset button to disarm, or the battery is low. 2. The temperature is not displayed. In air supply or automatic mode, the temperature source is not displayed.

3. If the receiving head is broken or cannot work normally due to moisture, check the transmission of the remote control signal. Aim your digital camera (mobile phone is also acceptable) at the transmitter and press any button to see if there is an infrared signal emitted.

4. The mode is incorrect, or the temperature setting does not meet the start-up conditions. When cooling, the set temperature should be less than the indoor temperature, and when heating, the set temperature should be greater than the indoor temperature. 5. Low battery power will cause the remote control distance to be short or unable to be remotely controlled.

It is recommended to remove the battery when the air conditioner is not in use, reinstall it when in use, or replace it with a loved one.

The second reason for the power carrying impulse: 1. The power supply is not connected or out of power, the contact of the Li Yuan wire socket in the electric shed is poor, or the power wire diameter is thin or aging. 2. The power supply voltage is low.

Starting voltage of fixed-frequency air conditioner: 187V, voltage fluctuation range: 198-242V, starting voltage of inverter air conditioner:

156V, voltage fluctuation range: 176-264V, chain hidden delay It is recommended to install a voltage regulator at home.

The third point of protection function: 1. Delay protection. In order to protect the life of the press, a protection circuit is designed in the control circuit of the air conditioner computer board, and the press is started after a delay of 3 minutes.

2. Prevent the delay of heating and cold air. When the air conditioner is heating, when the temperature of the indoor unit coil is lower than a certain value, the internal unit does not run, and generally after 3-5 minutes of preheating, the internal unit starts to work. 3. The computer program of the air conditioner is chaotic, which makes it impossible for the machine family to carry out the scheduled work.

4. Function lock protection. Some brands or models have a child lock function, if you are in lock mode and cannot perform any operation, you can refer to the manual to remove Zhaoling. If the above problems are still not turned on, your air conditioner may have a functional failure, please call Midea's after-sales service**4008899315 and let it arrange a special person to repair!

I hope my answer is helpful to you.

Midea inverter split floor air conditioner KFR-72LW +BP3D1Y-ZA300A2 is turned on, the external unit does not work, and the internal unit works for a while.

Reasons why the fan of the air conditioner does not rotate: It may be due to a short circuit or open circuit in the coil of the fan motor, damage to the starting capacitor, wear or poor lubrication of the bearing, and the fan blades being entangled by debris. Second, the air conditioner will be cool for a while and will not be cool First of all, we check whether the compressor is still working, if it is not working, then check whether it has been broken, if it is broken, you must replace a compressor, the price of a compressor is about 500-1000 yuan.

Secondly, check the refrigeration pipe to detect whether it has leaked or damaged, which will affect the cooling capacity of the air conditioner, and if it is broken, it needs to be replaced again. Again, it is necessary to check if there is still refrigerant. Because the snow is a refrigerant, it may be lost due to various reasons after a long time, so it is necessary to test whether there is still refrigerant, and if not, add two bottles of refrigerant.

Then, wash and replace the cabin air filter. The filter will have impurities after being used for a long time, that is, it will block the air conditioner, and it will also cause the odor of the air, so it should also be cleaned up in time, which may also be one of the reasons why the air conditioner is not cool. Finally, Zheng cavity leakage detection battery.

If the air conditioner has been driven by a battery, then see if the battery has been shouted out of power.

Midea's KFR-51LW BP2DN1Y-F(3) boots up and runs normally, and after ten minutes, it shows how to solve E8.

Hello dear, first, the Midea air conditioner shows that the E8 problem description: 1. The inverter hang-up shows that the E8 is a communication failure between the indoor motherboard and the display board or a dust removal reset fault; 2. The fixed-speed hang-up shows that E8 is a filter reset fault; The fixed speed cabinet shows that E8 is an indoor and outdoor communication fault or an electrostatic precipitator fault; 3. The inverter cabinet shows that E8 is a communication fault between the indoor motherboard and the display board. Second, the internal machine dust removal treatment method:

1. Clean the filter screen, use a toothbrush, a fine pen, wet wipes, etc. to clean the air outlet and fan roller impeller. 2. After cleaning, it is best to pour a few cups of water along the evaporator and rinse the sink by the way to prevent the residue from being blocked. Cleaning and dust removal method of external machine:

1. Unplug the power of the air conditioner, connect a water pipe for car washing, use tap water to rinse up and down, use a plastic bucket to wash water without conditions, prepare a brush with a handle (a few yuan a, a lot of hardware stores), brush the aluminum wings up and down while Jingling, remember not to deform the aluminum wings. 2. Don't doubt that the circuit will be wet, the outside unit of the air conditioner is fine in the wind and rain, but some air conditioners with poor quality and materials will rot quickly. Hope it helps.

If my answer is helpful to you, please give a thumbs up (in the lower left corner), I look forward to your like, your efforts are very important to me, and your support is also the motivation for my progress. Finally, I wish you good health and a happy mood!