Midea s 5 HP cabinet unit pC failure, Midea s 5 HP cabinet machine shows what fault p7 is

What is the reason for the appearance of P7 in the five-horse air conditioner of the United States, the occurrence of P7 in the five-horse air conditioner of the United States is fault**, P7 indicates the outdoor exhaust high-temperature protection, the solution: connect the pressure gauge from the maintenance port to check whether the freon is sufficient, and the normal operation should be in. This failure occurs when the refrigerant is insufficient, and if the pressure is low, it is sufficient to flush it.

Check whether the voltage of the three-phase power supply is too low or too high, and abnormal voltage can also cause this situation. Check whether the speed of the outdoor fan is normal, and if it is insufficient, overhaul it, replace the motor or starting capacitor. Check that the condenser of the outdoor unit is clean and if there is too much dirt, clean it.

Answer: Hello dear, Midea's 5 HP display P7 is fault**, P7 means outdoor exhaust high temperature protection. P7 is the protection of the outdoor unit with high exhaust temperature, and the compressor will be automatically shut down, which is generally a low fluorine failure, and it is necessary to check for leakage and make up for fluorine.

The fixed speed cabinet shows that P7 is outdoor exhaust high temperature protection; The inverter cabinet shows that P7 is the compressor with the outdoor exhaust temperature too high. Method:1

First of all, you look at whether it's really too hot or if there's something wrong with the sensor. If the sensor is a problem, replace the sensor, and if the sensor is fine, look at the system pressure. 2.

Whether there is a deflated pressure phenomenon in the return pipe, compare the resistance of the two fans, and whether the condenser is too dirty. 3.Clean the condenser and look at it or replace the press starter.

4.Change the capacitance of the fan to a larger one, remove the exhaust pipe temperature, and let go of a little refrigerant. 5.

You can call Midea's service** for repair. If you have any questions, you can give me feedback in time! I hope mine is helpful to you, I wish you a happy life, if mine is helpful to you I hope you can give a 5 star like.

Midea's 5 HP air conditioner has a P6 failure** is the position protection of the DC inverter compressor.

1 The setting temperature is too high. The room will reach the set temperature, the outdoor unit will stop running, and the air conditioner will only blow indoors, at this time, there may be a P6 failure**, it is recommended to lower the temperature, and the fault can be eliminated.

2 The external unit has too much dust or does not dissipate heat very well, so the compressor will overheat after working for a period of time, and then work after cooling, it is recommended to clean the external unit.

3 The three-phase line power supply system of the air conditioner sometimes stops due to the wrong connection of the main line, which causes the air conditioning protection system to work. In this case, it is only necessary to adjust the phase sequence of the three phases.

4. The display is due to the instantaneous impact of the high current on the frequency conversion module, resulting in the display failure of the frequency conversion module, and the zero-crossing detection has a problem. If the power is turned off multiple times and the fault is still displayed, the module may be damaged.

Extended Information; Midea air conditioner failure** Daquan.

P3 high and low voltage protection (for inverter).

The E1T1 sensor is faulty.

P4 indoor evaporator.

Protect off the compressor (high or low temperature).

E2T2 sensor faulty P5 outdoor condenser.

High temperature protection off the compressor.

E3T3 sensor failure: P7: The outdoor exhaust temperature is too high, and the compressor (for inverter) is turned off

E4T4 sensor failure (for inverters).

P8 compressor top temperature protection (for inverter).

E5 network communication failure (none).

P9 compressor top defrost protection or cold air shut-off fan.

E6 Outdoor Protection.

E7 humidifier malfunction (none).

E8 electrostatic precipitator.

Fault (None) E9eeprom Error (None).

Pro, Midea's 5 HP cabinet shows that PC02 is compressor high pressure protection; It is recommended to shut down the computer and wait for 5-10 minutes before restarting. Cabinet display PC02 fault solution: 1. Check whether the pins are loose, poor contact or broken wire.

2. Check whether the control circuit board of the external machine is normal. 3. Check whether the host control circuit board is faulty. 4. Check whether the compressor is faulty.

5. Check whether the condenser has poor heat dissipation. It is recommended to find a professional maintenance personnel to check it. Extended Resources:

A fixed-frequency air conditioner is a unit used to provide a space area (usually enclosed) to deal with changes in air temperature. The voltage of the national household power grid is 220 volts, 50 Hz, and the air conditioner that works under this condition is called a fixed-frequency air conditioner. Since the power supply frequency cannot be changed, the compressor speed of the traditional fixed-frequency air conditioner is basically unchanged, and the compressor is constantly "turned on and stopped" to adjust the indoor temperature.

1. Observe the working conditions of the internal and external units: such as the display of the indicator board, whether the internal unit is working, whether the wind speed output is normal, and whether the external fan and compressor are running, so as to determine whether the failure is caused by electrical problems or system problems. 2. Test the data of the air conditioner:

1. The air conditioner leakage cavity is balanced, and the continuous air conditioner with dripping water in the internal unit is generally normal, but it can only be used as a reference value due to the influence of ambient humidity and temperature. 2. The normal temperature difference between the inlet and outlet should be 12-14 degrees, but it will also be affected by the ambient temperature and wind speed. 3. Measure the pressure value of the system pipeline, the low pressure is in the general refrigeration, and the high pressure is in the middle of heating, but the pressure is affected by the ambient temperature, the higher the air inlet temperature of the air conditioner, the higher the exhaust pressure, the higher the condensing temperature, and vice versa; The greater the load of the air conditioner, the higher the suction pressure, and the higher the evaporation temperature (the evaporator is often between 5-7 degrees).

Summary. 1. Midea's air conditioner display P6 fault** is generally due to the instantaneous impact of the high current on the inverter module, resulting in the inverter module display failure;

2. In this case, it is recommended to completely disconnect the power supply and remove the plug from the socket, and then power it on and it will generally return to normal. If the power is turned off multiple times and the fault is still displayed, the module may be damaged.

3. It cannot be ruled out, it is recommended to find a professional maintenance master for door-to-door maintenance.

Midea's five-horse cabinet shows what the P6 is faulty.

1. Midea's air conditioner display P6 fault** is generally due to the instantaneous impact of the high current on the inverter module, resulting in the inverter module display failure; 2. In this case, it is recommended to completely disconnect the power supply and remove the plug from the socket, and then power it on and it will generally return to normal. If the power is turned off multiple times and the fault is still displayed, the module may be damaged. 3. It cannot be ruled out, it is recommended to find a professional maintenance master for door-to-door maintenance.

If you find it helpful to you, please click on the five little stars Thank you very much

Summary. Fault**PC is compressor high pressure protection.

Fault**PC is compressor high pressure protection.

Causes of failure: 1. Too much refrigerant. 2. The vacuum treatment of the system is not accurate.

3. Poor welding of the capillary tube of the potato, blockage. 4. Poor heat dissipation of the condenser of Luhongsou. Maintenance method:

1. Check whether the pins are loose, poor contact or broken wire. 2. Check whether the control circuit board of the external machine is normal. 3. Check whether the host control circuit board is faulty.

4. Check whether the compressor is faulty. 5. Check whether the cold dismantling condenser has poor heat dissipation. It is recommended to find a professional maintenance personnel to check it.

Compressor high pressure protection.

Fault. Causes of failure: 1. Too much refrigerant.

2. The vacuum treatment of the system is not accurate. 3. Poor welding of the capillary tube of the potato, blockage. 4. Poor heat dissipation of the condenser of Luhongsou.

Maintenance method: 1. Check whether the pins are loose, poor contact or broken wire. 2. Check whether the control circuit board of the external machine is normal.

3. Check whether the host control circuit board is faulty. 4. Check whether the compressor is faulty. 5. Check whether the cold dismantling condenser has poor heat dissipation.

It is recommended to find a professional maintenance personnel to check it.

Causes of failure: 1. Too much refrigerant. 2. The vacuum treatment of the system is not accurate.

3. Poor welding of the capillary tube of the potato, blockage. 4. Poor heat dissipation of the condenser of Luhongsou. Maintenance method:

1. Check whether the pins are loose, poor contact or broken wire. 2. Check whether the control circuit board of the external machine is normal. 3. Check whether the host control circuit board is faulty.

4. Check whether the compressor is faulty. 5. Check whether the cold dismantling condenser has poor heat dissipation. It is recommended to find a professional maintenance personnel to check it.

Causes of failure: 1. Too much refrigerant. 2. The vacuum treatment of the system is not accurate.

3. Poor welding of the capillary tube of the potato, blockage. 4. Poor heat dissipation of the condenser of Luhongsou. Maintenance method:

1. Check whether the pins are loose, poor contact or broken wire. 2. Check whether the control circuit board of the external machine is normal. 3. Check whether the host control circuit board is faulty.

4. Check whether the compressor is faulty. 5. Check whether the cold dismantling condenser has poor heat dissipation. It is recommended to find a professional maintenance personnel to check it.

What is the fault of Midea's 5 HP fixed speed cabinet machine showing E5?

The display E5 is a communication failure between the indoor motherboard and the display board or a network communication failure.

Solution: 1. Check whether the heat dissipation of the external unit of the air conditioner is good, and whether the filter screen of the internal unit and the cold condenser of the external unit are too dirty; 2. It may be that the slip voltage of the electric shop is too low, and a voltage regulator needs to be installed to crack the wax to stabilize the voltage; 3. It may be because the control board is faulty and needs to be replaced; 4. Check whether the external capacitor has been damaged; 5. Use a multimeter to check whether the resistance value of the fan is normal. 6. Contact the staff of the United States to conduct door-to-door inspection