Midea Air Conditioner Error Codes

Models:

MS11D-07HRN1 MO11D-12HN1

MO11D-07HN1 MS11D-18HRN1

MS11D-09HRN1 MO11D-18HN1

MO11D-09HN1 MS11D-21HRN1

MS11D-12HRN1 MO11D-21HN1

MS11D-24HRN1 MO11D-24HN1

E1 - EEPROM error (internal non-volatile memory)

E2 - zero-crossing signal error

E3 - internal fan motor fault

E5 - internal air temperature sensor T1 closed / torn

E6 - evaporator temperature sensor T2 closed / torn

E7 - Condenser temperature sensor T3 closed / torn

EC-Refrigerant leakage

E8 - fan error of outdoor unit fan or wrong phasing of external unit power supply

E9 - connection error between indoor and outdoor units

Models

MVUH252A-VA3

MVUH280A-VA3

MVUH335A-VA3

MVUH400A-VA3

MVUH450A-VA3

E0-outdoor unit connections are faulty, only for slave units

E1 - wrong sequence of phases

E2 - connection between the outdoor unit and the indoor unit

E3 -reserved

E4 - the temperature sensor is defective

E5 -reserved

E6 -reserved

E7 -reseved

E8 is the wrong address of the outdoor unit

E9 - the supply voltage is not normal

H0 is the connection between IR341 and 780034

H1 connection between 0537 and 780034

 

 

 

Models

 

MS11MU-09HRDN1 MS11MU-12HRDN1

MS11MU-18HRDN1 MS11MU-24HRDN1

MO11MU-09HRDN1 MO11MU-12HRDN1

MO11MU-18HRDN1 MO11MU-24HRDN1

E0 - EEPROM error (nonvolatile memory) of the indoor unit

E1 - connection error between indoor and outdoor units

E2 - zero-crossing signal error

E3 - the error of the engine of the fan of the indoor unit

E4 - indoor temperature sensor closed / broken

E5 - Evaporator temperature sensor closed / broken

EC-Refrigerant leakage

MSX 07 - MSX 18

MSX 21 - MSX 24

E1 - EEPROM error

E2 - zero current leakage

E3 - fan error of the indoor unit - there is no response from the Hall sensor of the electric motor

E4 - the starting current is exceeded when trying to start more than four times in a row

E5 - indoor unit air temperature sensor error

E6 - evaporator temperature sensor error

E7 - condenser temperature sensor error

E8 - phase reversals

E9 - Connection error between indoor and outdoor units

 

For inverter models

E0 - EEPROM error

E1 - incorrect interconnection (between indoor and outdoor unit)

E2 - wrong connection of the null phase

E3 - malfunction of the indoor fan motor

E4 - reserve

E5 - short-circuited, temperature sensor of the outdoor unit is cut off

E6 - short-circuited, internal temperature sensor is broken

P0 - overburning, power module defective (IPM)

P1 - voltage supply is not normal (high, low)

P2 - high discharge temperature

P3 - the outdoor temperature is too low for the air conditioner to work

P4 -the compressor is faulty