What is the fault of Midea inverter air conditioner E3?

Midea inverter hang-up displays the causes and solutions of E3; 1.If the filter screen of the outdoor unit of the Midea air conditioner is dirty, resulting in abnormal heat dissipation, it will lead to the failure of the Midea air conditioner E3. At this time, it is necessary to clean the filter of the outdoor unit, so that the problem of E3 display can be solved.

2.If the wiring in the Midea air conditioner is damaged, or the fan speed is not enough, this will lead to E3 failure. It is necessary to contact the maintenance personnel to replace the bad wire in time, find out the cause of the slow fan speed and solve it, so that the problem of the E3 display can be solved.

3.If the air conditioner shows that the E3 is faulty as soon as you turn on the Midea, you can check whether the voltage is normal. If it is not normal, it is recommended to turn on the air conditioner or install a pressure regulator, so that the fault problem can be solved.

E3 appears in Midea's inverter male adjustment: it means that there is no fan output on the outdoor circuit board, and the outdoor fan is broken, the capacitor is broken, or the fan speed is out of control.

Specifically, you need to check it to know the specific problem. If the indoor unit is running normally, it can be determined 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's air conditioner is faulty**E3, which represents compressor low-pressure protection. This situation may be due to insufficient refrigerant, the radiator of the internal and external units is not working, or the filter screen is too dirty, and the circuit board related circuits are damaged. However, the specific reason can only be determined after the inspection of the professional air conditioning maintenance master, and then the targeted maintenance, it is not recommended to disassemble it at will, otherwise the existing fault will be expanded.

Midea's inverter air display E3 represents the failure of the outdoor ambient temperature sensor, that is, the ambient temperature sensor of the external unit is broken. The compressor starts to detect the low-pressure switch signal after 3 minutes, if the low-pressure switch is detected to be disconnected for 3 consecutive minutes, the whole machine will stop, and the indicator light will flash, displaying E3 to remind the user of the system leakage.

Fault**: e3

Fault content: The speed of the indoor unit fan is out of control.

Troubleshooting: 1. Check whether the power supply wiring of the fan motor is loose, poor contact or disconnected.

2. Check whether the fan starting capacitor of the internal unit is faulty.

3. Check whether the fan motor coil is burned.

4. Check whether the indoor control circuit board is faulty.

5. Check whether the main control circuit board is faulty.

There are many other possible causes, and it is advisable to have a professional evaluate them carefully.

If you have any other questions, please feel free to ask them.

It may be because of the possibility after the sensor fails.

It's at home, the voltage of the power supply.

Question: I asked for analysis, where does the e3 circuit analysis appear. It's not all around to define what you say, I say, do you dare?

The indoor fan does not rotate, very slowly, or very quickly.

2. The fan motor has no feedback signal output, and the motor needs to be replaced.

Midea's inverter air conditioner is out of the blue, and the E3 error usually indicates that the indoor fan is faulty. This may be caused by a faulty fan motor, a faulty fan circuit, a blocked fan rotor, etc.

1. Fan motor failure: It is necessary to check whether the wind and sen opening machine of the indoor unit of the air conditioner is running normally, and if it is not running or running abnormally, the fan motor may need to be replaced.

2. Fan circuit failure: It is necessary to check whether the fan circuit has loose or damaged connections, and if so, the circuit needs to be repaired or replaced.

3. Fan rotor is blocked: It is necessary to check whether the fan rotor is blocked, and if so, clean or replace the fan rotor.

The consequences of Midea's inverter air conditioner E3

1. Unable to cool or heat normally: The indoor fan is one of the important components in the air conditioning system, if it cannot operate normally, the air conditioning system may not be able to provide enough cold or hot air, resulting in the indoor temperature cannot reach the required comfort level.

2. Increased noise of air conditioner: Failure of indoor fan may lead to unstable operation of fan or abnormal noise, which will affect the normal operation of air conditioner and may have a negative impact on the comfort of the indoor environment.

3. Increased energy consumption: When the indoor fan fails, the air conditioning system may constantly try to start the fan, which will lead to an increase in energy consumption, thereby increasing the electricity bill for using the air conditioner.

The above content refers to Encyclopedia-Midea inverter air conditioner.

The appearance of E3 in Midea's inverter air conditioner represents the failure of the outdoor ring temperature sensor, that is, the ambient temperature sensor of the external unit is broken. If the low-pressure switch is detected for 3 consecutive minutes, the whole machine will stop, and the indicator light will flash to display E3 to remind the user of the system leakage.

Midea inverter air conditioner common faults ** Brigade do Xun:

P3 high and low voltage protection (for frequency converter);

P4 indoor evaporator protection off compressor (high or low temperature);

P5 outdoor condenser high temperature protection off compressor;

P7 outdoor exhaust temperature dismantle this high off compressor (for inverter);

E4T4 sensor failure (for inverter);

P8 compressor top temperature protection (for inverter);

E5 network communication failure (none);

P9 defrost protection or anti-cold wind shut-off fan;

E6 outdoor fault;

E7 humidifier failure (none);

E8 electrostatic precipitator fault (none);

E9 automatic door failure.