Midea Air Conditioner Error Codes

Midea is well-known for delivering high-quality cooling solutions for both residential and commercial spaces. However, even air conditioners produced by a reputable brand will undoubtedly run into some issues over time. This may be stressful to deal with, but your air conditioning unit will display a unique error code to let you know what’s wrong, making the troubleshooting process easier. Here’s a list of Midea air conditioner error codes!

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Split Hi-Wall

Inverter (2012 Versions)

E0: Indoor PCB main chip does not receive feedback from EEPROM chip
E1: Communication error between indoor and outdoor units
E2: Zero-crossing signal detection error
E3: Indoor fan speed is operating outside normal range
E5: Evaporator coil outlet temperature sensor is open or short
E6: Indoor room temperature sensor is open or short
E7: Outdoor fan speed is operating outside normal range
FP: Heating in room temperature under 8°C
P0: IPM malfunction or IGBT over-strong current protection
P1: Over-voltage protection
P2: Top temperature protection of compressor or high temperature protection of IPM module
P4: Inverter compressor drive error
P5: Indoor units mode conflict
SC: Self-clean

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Inverter (2013 - 2018 Versions)

AP: Smart Kit has entered the WLAN network setting mode
cF: Anti-cold air feature is on
CL: Reminder to clean the air filter
CP: Remote is switched off
dE: DR input signal error
dF: AC unit is defrosting
E0: Indoor PCB main chip is not receiving feedback from EEPROM chip
E1: Indoor and outdoor unit communication error
E2: Zero-crossing signal detection error
E3: Indoor fan speed is operating outside normal range
E4: Indoor room temperature sensor T1 is in open circuit or has short circuited
E5: Indoor room temperature sensor T1 is in open circuit or has short circuited
E7: Display board and main board communication error
EA: Indoor PCB main chip is not receiving feedback from EEPROM chip
Eb: Display board and main board communication error
EC: Insufficient refrigerant levels
EH 0b: Display board and main board communication error
F0: Abnormal current rise
F1: Outdoor temperature sensor open or short circuit
F2: Evaporator coil outlet temperature sensor open or short circuit
F3: Outdoor temperature sensor open or short circuit
F4: Outdoor EEPROM or compressor driven chip EEPROM parameter error
F5: Outdoor fan speed is operating outside of normal range
F6: Outdoor temperature sensor open or short circuit
FC: Forced cooling feature is on
FP: Heating in room temperature is under 8°C
nF: Reminder to replace unit’s air filter
P0: IPM malfunction or IGBT over-strong current protection
P1: Over voltage or too low voltage protection
P10: Over voltage or too low voltage protection
P11: Over voltage or too low voltage protection
P2: Top temperature protection of compressor, high temperature protection of IPM module, or high pressure protection
P4: Inverter compressor drive error
P5 or --: Indoor units mode conflict
P6: High pressure protection or low pressure protection
P7: AP mode is activated but cannot detect WiFi kit
SC: Self-cleaning feature is on

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Inverter (2019 Versions)

AP: AP mode of WiFi connection
CL: Clean filter
CP: Remote control switched off
dE: DR input signal error
dF: Defrost

EC 07: Outdoor fan speed is operating outside normal range
EC 51: Outdoor PCB main chip is not receiving feedback from EEPROM chip
EC 52: Outdoor temperature sensor open or short circuit
EC 53: Outdoor temperature sensor open or short circuit
EC 54: Outdoor temperature sensor open or short circuit
EC 56: Outdoor temperature sensor open or short circuit
EC C1: Possible refrigerant leak or refrigerant sensor is out of range
EH 00: Indoor PCB main chip is not receiving feedback from EEPROM chip
EH 02: Zero crossing detection error
EH 03: Indoor fan speed is operating outside normal range
EH 0A: Indoor PCB main chip is not receiving feedback from EEPROM chip
EH 0b:
EH 3A: Indoor unit is receiving abnormal fluctuations in voltage from fresh air motor module
EH 3b: Indoor unit is receiving abnormal fluctuations in voltage from fresh air motor module
EH 3C: Indoor unit is receiving abnormal fluctuations in voltage from fresh air motor module
EH 60: Indoor temperature sensor T1 open or short
EH 61: Indoor room temperature sensor T1 is open or short
EH 62: Indoor unit receiving abnormal fluctuations in voltage from fresh air motor module
EH C1: Issue with refrigerant or refrigerant sensor
EH C2: Issue with refrigerant or refrigerant sensor
EH C3: Issue with refrigerant or refrigerant sensor
EH b3: Wired controller not receiving feedback from indoor unit
EH bA: Indoor unit hasn’t received feedback from fresh air motor module for 50 seconds
EHbE: Communication error between radar and display board or radar fault
EL 01: Communication error between indoor and outdoor unit
EL 0C: Low refrigerant levels
FC: Forced cooling
FH 0P: AP mode is active but no WiFi kit installed
FH CC: Issue with refrigerant sensor
FP: Heating in room under 8°C
LP: Low ambient temperature protection
nF: Replace filter
PC 00: IPM malfunction or IBT over-strong current protection
PC 01: Over voltage protection
PC 02: Top temperature of compressor or high pressure protection of IPM module
PC 03: High or low pressure protection
PC 04: Inverter compressor drive error
PC 08: Current overload protection
PC 0L: Low ambient temperature protection
PC 40: Communication error between outdoor main chip and compressor drive chip
SC: Self-clean
– – : Indoor units mode conflict

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Multi-Split

Indoor Unit Split (2013 - 2018 Versions)

AP: AP mode of WiFi connection
cF: Warming in heating mode
CL: Clean filter
CP: Remote control switched off
dE: DR input signal error
dF: Defrost
E0: Indoor PCB main chip does not receive feedback from EEPROM chip
E1: Communication error between indoor and outdoor units
E2: Zero-crossing signal detection error
E3: Indoor fan speed is operating outside normal range
E4: Indoor room temperature sensor is open or short
E5: Indoor room temperature sensor is open or short
E7: Communication error between display board and main board
EA: Indoor PCB main chip does not receive feedback from EEPROM chip
Eb: Communication error between display board and main board
EC: Low refrigerant
EH 0b: Communication error between display board and main board
F0: Current overload protection
F1: Evaporator coil outlet temperature sensor is open or short
F2: Evaporator coil outlet temperature sensor is open or short
F3: Evaporator coil outlet temperature sensor is open or short
F4: Outdoor PCB main chip does not receive feedback from EEPROM chip
F5: Outdoor fan speed is operating outside normal range
F6: Evaporator coil outlet temperature sensor is open or short
FC: Forced cooling
FP: Heating in room temperature under 8°C
nF: Replacing filter
P0: IPM malfunction or IGBT over-strong current protection
P1: Over voltage protection
P10: Over voltage protection
P11: Over voltage protection
P2: Top temperature protection of compressor or high temperature protection of IPM module
P4: Inverter compressor drive error
P5: Indoor units mode conflict
P6: High pressure protection or low pressure protection
P7: AP mode is active but no WiFi kit installed
SC: Self clean

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Indoor Unit Split (2019 Versions)

- - : Indoor units mode conflict
AP: AP mode of WiFi connection
CL: Clean filter
CP: Remote control switched off
dE: DR input signal error
dF: Defrost
EC 07: Outdoor fan speed is operating outside of normal range
EC 51: Outdoor PCB main chip not receiving feedback from EEPROM chip
EC 52: Evaporator coil outlet temperature sensor is open or short
EC 53: Evaporator coil outlet temperature sensor is open or short
EC 54: Evaporator coil outlet temperature sensor is open or short
EC 56: Evaporator coil outlet temperature sensor is open or short
EC C1: Issue with refrigerant or refrigerant sensor
EH 00: Indoor PCB main chip not receiving feedback from EEPROM chip
EH 02: Zero-crossing signal detection error
EH 03: Indoor fan speed is operating outside normal range
EH 0A: Indoor PCB main chip not receiving feedback from EEPROM chip
EH 0b: Communication error between display board and main board
EH 3A: Issue with fresh air motor
EH 3b: Issue with fresh air motor
EH 3C: Issue with fresh air motor
EH 60: Indoor room temperature sensor is open or short
EH 61: Indoor room temperature sensor is open or short
EH 62: Issue with fresh air motor
EH b3: Communication error between wired controller and indoor unit
EH bA: Communication malfunction between fresh air motor module and indoor unit
EH C1: Issue with refrigerant or refrigerant sensor
EH C2: Issue with refrigerant or refrigerant sensor
EH C3: Issue with refrigerant or refrigerant sensor
EHbE: Communication error between radar and display board or radar fault
EL 01: Communication error between indoor and outdoor unit
EL 0C: Low refrigerant levels
FC: Forced cooling
FH 0P: AP mode is active but no WiFi kit installed
FH CC: Issue with refrigerant or refrigerant sensor
FP: Heating in room temperature under 8°C
LP: Low ambient temperature protection
nF: Replacing filter
PC 00: IPM malfunction or IGBT over-strong-current protection
PC 01: Over voltage protection
PC 02: Top temperature protection of compressor or high temperature protection of IPM module
PC 03: High or low pressure protection
PC 04: Inverter compressor drive error
PC 08: Current overload protection
PC 0L: Low ambient temperature protection
PC 40: Communication error between outdoor main chip and compressor driven chip
SC: Self cleaning

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Outdoor Unit (Before 2012 Versions)

E0: Outdoor PCB main chip does not receive feedback from EEPROM chip
E1: Indoor room temperature sensor is open or short
E2: Indoor room temperature sensor is open or short
E3: Indoor room temperature sensor is open or short
E4: Evaporator coil outlet temperature sensor is open or short
E5: Over voltage or over low voltage protection
E6: Indoor room temperature sensor is open or short
E7: Communication error between outdoor main PCB and IPM board
E8: Outdoor fan speed is operating outside normal range
P0: Discharge temperature protection of compressor
P1: High pressure protection
P2: Low pressure protection
P3: Current overload protection
P4: IPM malfunction or IGBT over-strong current protection
P6: High or low pressure protection
P7: IP malfunction or IGBT over-strong current protection
PF: PFC module protection

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Outdoor Unit (After 2012 Versions)

E0: Outdoor PCB main chip not receiving feedback from EEPROM chip
E2: Communication error between indoor and outdoor units
E3: Communication error between outdoor main PCB and IPM board
E4: Evaporator coil outlet temperature is open or short
E5: Over voltage or over low voltage protection
E6: PFC module protection
E8: Outdoor fan speed is operating outside normal range
Ed: Communication error between adapter board and outdoor main control board
F1: Indoor room temperature sensor is open or short
F2: Indoor room temperature sensor is open or short
F3: Indoor room temperature sensor is open or short
F4: Indoor room temperature sensor is open or short
F5: Indoor room temperature sensor is open or short
F6: Indoor room temperature sensor is open or short
LP: Low ambient temperature protection
P0: Top temperature protection of compressor
P1: High pressure protection
P2: Low pressure protection
P3: Current overload protection
P4: Discharge temperature protection of compressor
P5: PFC module protection
P6: IPM malfunction or IGBT over-strong current protection

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Outdoor Unit (2020 versions)

EC 07: Outdoor fan speed is operating outside normal range
EC 50: Evaporator coil outlet sensor is open or short
EC 51: Outdoor PCB main chip does not receive feedback from EEPROM
EC 52: Evaporator coil outlet temperature sensor is open or short
EC 53: Evaporator coil outlet temperature sensor is open or short
EC 54: Evaporator coil outlet temperature sensor is open or short
EC 55: Outdoor IPM module temperature sensor fault
EC 56: Evaporator coil outlet temperature sensor is open or short
EC 57: Evaporator coil outlet temperature sensor is open or short
EC 5C: High pressure sensor is open or short
EC 71: Outdoor fan speed is operating outside normal range
EC 72: Lack phase failure of outdoor DC fan motor
EC 73: Outdoor fan speed is operating outside normal range
EL 01: Communication error between indoor and outdoor unit
EL 16: Communication malfunction between adapter board and outdoor main control board
FC: Forced cooling
LC 06: Top temperature protection of compressor
PC 00: IPM malfunction or IGBT over-strong current protection
PC 02: Top temperature protection of compressor
PC 06: Discharge temperature protection of compressor
PC 08: Current overload protection
PC 0A: High temperature protection of condenser
PC 0F: PFC module protection
PC 0L: Low ambient temperature protection
PC 10: Over voltage or over low voltage protection
PC 11: Over voltage or over low voltage protection
PC 12: Over voltage or over low voltage protection
PC 30: High pressure protection
PC 31: Low pressure protection
PC 40: Communication error between outdoor main PCB and IBM board
PC 41: Outdoor compressor current sampling circuit failure
PC 43: Outdoor compressor lack phase protection
PC 44: Current overload protection
PC 45: Outdoor unit IR chip drive failure or outdoor IPM module temperature sensor TH fault
PC 46: Current overload protection
PC 49: Current overload protection

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Window and Portable Air Conditioners

E0: EEPROM parameter error
E1: Clean filter or communication error between indoor and outdoor units
E3: Indoor fan speed is operating outside of normal range
E4: Indoor room temperature or evaporator temperature sensor is open or short
E5: Indoor room temperature or evaporator temperature sensor is open or short
EC0 7: Indoor fan speed is operating outside normal range
EC51: EEPROM parameter error
EC52: Indoor room temperature or evaporator temperature sensor is open or short
EC53: Indoor room temperature or evaporator temperature sensor is open or short
EC54: Indoor room temperature or evaporator temperature sensor is open or short
EC: Refrigerant leak
EH0 0: Display board EEPROM parameter error
EH0 3: Indoor fan speed is operating outside normal range
EH0 b: Communication malfunction for display board and PCB
EH60: Indoor room temperature or evaporator temperature sensor is open or short
EH61: Indoor room temperature or evaporator temperature sensor is open or short
EH91: Frosting protection
EL0 C: Refrigerant leakage detection
Ed: Frosting protection
En: Indoor room temperature or evaporator temperature sensor is open or short
Eo: Indoor room temperature or evaporator temperature sensor is open or short
Er: Indoor room temperature or evaporator temperature sensor is open or short
F0: Current overload protection
F1: Indoor room temperature or evaporator temperature sensor is open or short
F2: Indoor room temperature or evaporator temperature sensor is open or short
F3: Indoor room temperature or evaporator temperature sensor is open or short
F4: Outdoor unit EEPROM parameter error
P0: IPM malfunction or IGBT over-strong current
P1: Bottom tray is full, over voltage, or low voltage protection
P2: High temperature protection of IPM module
P4: Inverter compressor drive error
PC0 0: IPM malfunction or IGBT over-strong current protection
PC0 1: Over-voltage or low voltage protection
PC0 2: High temperature protection of IPM module
PC0 4: Inverter compressor drive error

Here are some additional resources that you can refer to:

With this list of Midea air conditioning error codes, you’ll be able to better understand what’s going on with your unit. The best way to resolve these issues while minimizing any risk and potential damage is by booking an appointment with a professional HVAC technician and having them check and inspect your AC. These technicians will be able to easily troubleshoot these problems, and make the best recommendations for your unit.