Durham Region Air Conditioning Repair, Service and Installation
The tables below contain lists of error codes for several models of the Midea air conditioners. For each error code, there is a short explanation of the type of the malfunction. There are separate tables for the following series of Midea ACs: R series, 9V, 9A, and the Cassette / Ceiling&Floor series. If you're looking for information on AC Outdoor Units, you will also nd it below.
Midea air conditioner error code R series
CODE: E0.
RESULT: EEPROM parameter error.
CODE: E1.
RESULT: Indoor / outdoor units communication protection.
CODE: E2.
RESULT: Zero-crossing signal error.
CODE: E3.
RESULT: Fan speed out of control.
CODE: E5.
RESULT: Open or short circuit of outdoor temperature sensor.
CODE: E6.
RESULT: Open or short circuit of room or evaporator temperature sensor.
CODE: P0.
RESULT: IGBT over-strong current protection.
CODE: P1.
RESULT: Over voltage or too under voltage protection.
CODE: P2.
RESULT: Temperature protection of compressor top.
CODE: P4.
RESULT: Inverter compressor drive error.
Midea air conditioner error code 9V series
CODE: E0.
RESULT: EEPROM.
CODE: E1.
RESULT: Indoor / outdoor units communication protection.
CODE: E2.
RESULT: 3 Zero-crossing signal error.
CODE: E3.
RESULT: Indoor fan speed out of control.
CODE: E5.
RESULT: Outdoor unit temp. sensor or connector of temp. sensor is defective.
CODE: E6.
RESULT: Open or short circuit of room or evaporator temperature.
CODE: E7.
RESULT: Outdoor fan speed out of control.
CODE: P0.
RESULT: IBM malfunction or IGBT over-strong current protection.
CODE: P1.
RESULT: Over voltage or too under voltage protection.
CODE: P2.
RESULT: Temperature protection of compressor top.
CODE: P4.
RESULT: Compressor position protection.
CODE: P5.
RESULT: Inverter module protection.
Midea air conditioner error code 9A series
CODE: E0.
RESULT: EEPROM.
CODE: E1.
RESULT: Indoor / outdoor units communication protection.
CODE: E2.
RESULT: Zero-crossing signal error.
CODE: E3.
RESULT: Indoor fan speed out of control.
CODE: E5.
RESULT: Outdoor unit temp. sensor or connector of temp. sensor is defective.
CODE: E6.
RESULT: Open or short circuit of room or evaporator temperature.
CODE: E7.
RESULT: Outdoor fan speed out of control.
CODE: P0.
RESULT: IBM malfunction or IGBT over-strong current protection.
CODE: P1.
RESULT: Over voltage or too under voltage protection.
CODE: P2.
RESULT: Temperature protection of compressor top.
CODE: P4.
RESULT: Compressor position protection.
CODE: P5.
RESULT: Inverter module protection.
Midea AC Outdoor Units error code (except M5OA-36HRDN1-Q model)
CODE: E0.
RESULT: EEPROM error.
CODE: E1.
RESULT: No A Indoor unit coil outlet temp. sensor or connector of sensor is defective.
CODE: E2.
RESULT: No B Indoor unit coil outlet temp. sensor or connector of sensor is defective.
CODE: E3.
RESULT: No C Indoor unit coil outlet temp. sensor or connector of sensor is defective.
CODE: E6.
RESULT: No D Indoor unit coil outlet temp. sensor or connector of sensor is defective.
CODE: E4.
RESULT: Outdoor unit temp. sensor or connector of temp. sensor is defective.
CODE: E5.
RESULT: Compressor voltage protection.
CODE: E7.
RESULT: Communication malfunction between outdoor main chip and compressor control chip.
CODE: P0.
RESULT: Temperature protection of compressor discharge or compressor top. For M4OC-36HRDN1-Q,it only means compressor discharge temp.protection.
CODE: P1.
RESULT: High pressure protection(only for M4OC1-27HRDN1-Q, M4OC-36HRDN1-Q).
CODE: P2.
RESULT: Low pressure protection(only for M4OC1-27HRDN1-Q, M4OC-36HRDN1-Q).
CODE: P3.
RESULT: Compressor current protection.
CODE: P4.
RESULT: Inverter module protection.
CODE: P6.
RESULT: Condenser high-temperature protection.
Midea AC Outdoor Units error code For M5OA-36HRDN1-Q model
CODE: E0.
RESULT: EEPROM error.
CODE: E1.
RESULT: No A Indoor unit coil outlet temp. sensor or connector of sensor is defective.
CODE: E2.
RESULT: Communication malfunction between outdoor unit and indoor units.
CODE: E3.
RESULT: Communication malfunction between outdoor main chip and compressor control chip.
CODE: E4.
RESULT: Outdoor unit temp. sensor or connector of temp. sensor is defective.
CODE: E5.
RESULT: Compressor voltage protection.
CODE: E6.
RESULT: PFC module protection.
CODE: P0.
RESULT: Compressor top. temperature protection.
CODE: P1.
RESULT: High pressure protection.
CODE: P2.
RESULT: Low pressure protection.
CODE: P3.
RESULT: Compressor current protection.
CODE: P4.
RESULT: Compressor discharge high-temperature protection.
CODE: P5.
RESULT: Condenser high-temperature protection.
CODE: P6.
RESULT: Inverter module protection.
CODE: F1.
RESULT: No A Indoor unit coil outlet temp. sensor or connector of sensor is defective Midea air conditioner error codes.
CODE: F2.
RESULT: No B Indoor unit coil outlet temp. sensor or connector of sensor is defective.
CODE: F3.
RESULT: No C Indoor unit coil outlet temp. sensor or connector of sensor is defective.
CODE: F4.
RESULT: No D Indoor unit coil outlet temp. sensor or connector of sensor is defective.
CODE: F5.
RESULT: No E Indoor unit coil outlet temp. sensor or connector of sensor is defective.
Midea M2OC-18HRDN1-M air conditioner error code
CODE: EO.
RESULT: EEPROM parameter error.
CODE: E1.
RESULT: No 1 Indoor units pipe temp, sensor or connector of pipe temp, sensor is defective.
CODE: E2.
RESULT: No 2 Indoor units pipe temp, sensor or connector of pipe temp, sensor is defective.
CODE: E3.
RESULT: No 3 Indoor units pipe temp, sensor or connector of pipe temp, sensor is defective.
CODE: E6.
RESULT: No 4 Indoor units pipe temp, sensor or connector of pipe temp, sensor is defective.
CODE: E4.
RESULT: Open or short circuit of outdoor temperature sensor.
CODE: E5.
RESULT: Compressor volt protection.
CODE: E7.
RESULT: Communication error between outdoor IC and DSP.
CODE: PO.
RESULT: Temperature protection of compressor top.
CODE: P1.
RESULT: High pressure protection (just for 36K 1x4 units).
CODE: P2.
RESULT: Low pressure protection (just for 36K 1x4 units).
CODE: P3.
RESULT: Compressor current protection.
CODE: P4.
RESULT: Inverter module protection.
CODE: P5.
RESULT: Outdoor temp, too low protection.
CODE: P6.
RESULT: Condenser high-temperature protection.
CODE: P7.
RESULT: Compressor driving protection.
CODE: PF.
RESULT: PFC protection (just for 36K 1x4 units).
Midea MSX-07HRN1-QC2 air conditioner error code
CODE: E1.
RESULT: EEPROM error.
CODE: E2.
RESULT: Zero crossing detection error.
CODE: E3.
RESULT: Indoor fan speed has been out of control.
CODE: E4.
RESULT: Over current protection occurs 4 times.
CODE: E5.
RESULT: The T1 sensor is open circuit or short circuit.
CODE: E6.
RESULT: The T2 sensor is open circuit or short circuit.
CODE: E7.
RESULT: The T3 sensor is open circuit or short circuit.
CODE: E9.
RESULT: Indoor / outdoor units communication error.