Midea AC Error Codes and Troubleshooting

AC BrandsMidea

Check CodeDiagnosis of malfunction
E0EEPROM parameter error
E1Indoor /outdoor units communication protection
E2Zero-crossing signal error
E3Fan speed out of control
E5Open or short circuit of outdoor temperature sensor
E6Open or short circuit of room or evaporator temperature sensor
P0IGBT over-strong current protection
P1Over voltage or too under voltage protection
P2Temperature protection of compressor top.
P4Inverter compressor drive error

Midea Air Conditioner 9A Series Error Codes; 

Midea Air Conditioner 9A Series Error Codes
Midea Air Conditioner 9A Series Error Codes

Error Code: E0

Malfunction: EEPROM error

Error Code: E1

Malfunction: Indoor / outdoor units communication protection

Error Code: E2

Malfunction: Zero-crossing signal error

Error Code: E3

Malfunction: Indoor fan speed out of control

Error Code: E5

Malfunction: Outdoor unit temp. sensor or connector of temp. sensor is defective

Error Code: E6

Malfunction: Open or short circuit of room or evaporator temperature

Error Code: E7

Malfunction: Outdoor fan speed out of control

Error Code: P0

Malfunction: IBM malfunction or IGBT over-strong current protection

Error Code: P1

Malfunction: Over voltage or too under voltage protection

Error Code: P2

Malfunction: Temperature protection of compressor top.

Error Code: P4

Malfunction: Compressor position protection

Error Code: P5

Malfunction: Inverter module protection

Midea AC Outdoor Units Error Codes (Except M5OA-36HRDN1-Q Model);


Midea AC Outdoor Units Error Codes
Midea AC Outdoor Units Error Codes

Error Code: E0

Malfunction: EEPROM error

Error Code: E1

Malfunction: No A Indoor unit coil outlet temp. sensor or connector of sensor is defective

Error Code: E2

Malfunction: No B Indoor unit coil outlet temp. sensor or connector of sensor is defective

Error Code: E3

Malfunction: No C Indoor unit coil outlet temp. sensor or connector of sensor is defective

Error Code: E6

Malfunction: No D Indoor unit coil outlet temp. sensor or connector of sensor is defective

Error Code: E4

Malfunction: Outdoor unit temp. sensor or connector of temp. sensor is defective

Error Code: E5

Malfunction: Compressor voltage protection

Error Code: E7

Malfunction: Communication malfunction between outdoor main chip and compressor control chip

Error Code: P0

Malfunction: Temperature protection of compressor discharge or compressor top. For M4OC-36HRDN1-Q,it only means compressor discharge temp.protection.

Error Code: P1

Malfunction:  High pressure protection(only for M4OC1-27HRDN1-Q, M4OC-36HRDN1-Q)

Error Code: P2

Malfunction:  Low pressure protection(only for M4OC1-27HRDN1-Q, M4OC-36HRDN1-Q)

Error Code: P3

Malfunction:  Compressor current protection

Error Code: P4

Malfunction:  Inverter module protection

Error Code: P6

Malfunction: Condenser high-temperature protection

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