Midea AC Error Codes (Troubleshooting Guide)

Midea Group is a Chinese electrical appliance manufacturer. With headquarters in Beijao town, Shunde District – the company offers its services on a national and international level. Covering a wide range of products they take on everything from lighting, and floor care, to kitchen appliances, commercial cooking appliances, refrigerators, and air conditioners. Additionally, the company is the world’s largest appliance and robot producer.

Starting from a small workshop the company has made strides over the years. Creating one of the most successful private companies in China. They started manufacturing air conditioners in 1985, and that is still the most vital component of their business. With a range of choices, you can easily find a residential or commercial air conditioner that gets the job done efficiently and effectively. However, even with decades under the belt, there are times one cannot expect a bulletproof system.

Midea ac error codes are easy to understand and can help you deal with the issue without having to call for professional help. As most of these are easy fixes, that you can take on your own without having to spend an extra dime. The best way to deal with the situation is to note down the error code and match it using the list below. Once you have the error code you can easily work your way to the fix. To help you out we have listed down some of the most common error codes for Midea AC.

The tables below contain lists of error codes for several models of the Midea Air Conditioners.

R Series Codes

Error CodesMeaning
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
E7Outdoor fan speed out of control
P0IGBT over-strong current protection
P1Over voltage or too under voltage protection
P2Temperature protection of compressor top.
P4Inverter compressor drive error
P5Inverter module protection
EL OCPressure fault, check dirty filter, blocked fan, indoor unit not working, refrigerant leak.

Outdoor Unit Codes

Midea AC Outdoor Units Error Codes
Midea AC Outdoor Units Error Codes
Error CodeMalfunction
E0EEPROM error
E1No A Indoor unit coil outlet temp. sensor or connector of sensor is defective
E2No B Indoor unit coil outlet temp. sensor or connector of sensor is defective
E3No C Indoor unit coil outlet temp. sensor or connector of sensor is defective
E4 Outdoor unit temp. sensor or connector of temp. sensor is defective
E5Compressor voltage protection
E6No D Indoor unit coil outlet temp. sensor or connector of sensor is defective
E7Communication malfunction between outdoor main chip and compressor control chip
P0Temperature protection of compressor discharge or compressor top. For M4OC-36HRDN1-Q,it only means compressor discharge temp. protection.
P1High pressure protection(only for M4OC1-27HRDN1-Q, M4OC-36HRDN1-Q)
P2Low pressure protection(only for M4OC1-27HRDN1-Q, M4OC-36HRDN1-Q)
P3Compressor current protection
P4Inverter module protection
P6Condenser high-temperature protection

Wall Type AC Codes

Midea Air Conditioner Error Codes MSX-07HRN1-QC2
Fault CodeMeaning
POIGBT over-strong current
P1 (Led 6 Green: Bright - Led 5 Red: Bright)Over voltage or too low voltage protection
P1 (Led 6 Green: Bright - Led 5 Red: Blink)MCE malfunction
P4 (Led 6 Green: Extinguished - Led 5 Red: Blink)MCE start malfunction
P4 (Led 6 Green: Blink - Led 5 Red: Bright)MCE phase lack protection, MCE zero speed protection, PWM in-phase malfunction
PO (Led 6 Green: Blink - Led 5 Red: Extinguished)IGBT over-strong current
P4 (Led 6 Green: Blink - Led 5 Red: Blink)Communication malfunction
Midea Display Code Meanings

Outdoor Units Codes

Error CodeMalfunction
E0EEPROM error
E1No A Indoor unit coil outlet temp. sensor or connector of sensor is defective
E2Communication malfunction between outdoor unit and indoor units
E3Communication malfunction between outdoor main chip and compressor control chip
E4Outdoor unit temp. sensor or connector of temp. sensor is defective
E5Compressor voltage protection
E6PFC module protection
P0Compressor top. temperature protection
P1High pressure protection
P2Low pressure protection
P3Compressor current protection
P4Compressor discharge high-temperature protection
P5Condenser high-temperature protection
P6Inverter module protection
F1No A Indoor unit coil outlet temp. sensor or connector of sensor is defective
F2No B Indoor unit coil outlet temp. sensor or connector of sensor is defective
F3No C Indoor unit coil outlet temp. sensor or connector of sensor is defective
F4No D Indoor unit coil outlet temp. sensor or connector of sensor is defective
F5No E Indoor unit coil outlet temp. sensor or connector of sensor is defective

Midea AC Codes List And Definitions

Midea Air Conditioner Error Codes List And Definitions
Midea Air Conditioner Error Codes List And Definitions
Error CodesSolution
E01The temp. sensor is off, or short-circuit.
E02Compressor is over current /Turn off the unit, wait for a moment and then restart. If many times of this operation do not work, please contact service people.
E04Outdoor unit protection /Turn off the unit, wait for a moment and then restart. If many times of this operation do not work, please contact service people.
P02Compressor is over load /Turn off the unit, wait for a moment and then restart. If many times of this operation do not work, please contact service people.
P03The temperature of evaporator coil of indoor unit is too low (when cooling) /Turn off the unit, remove the obstacles in the air-inlet and clean the air filter, then restart the unit. If many times of this operation do not work, please contact service people.
P04The temperature of evaporator coil of indoor unit is too high (when heating) /Turn off the unit, remove the obstacles in the air-inlet and clean the air filter, then restart the unit. If many times of this operation do not work, please contact service people.
P05The temperature of air outlet of indoor unit is too high (when heating) /Turn off the unit, remove the obstacles in the air-inlet and clean the air filter, then restart the unit. If many times of this operation do not work, please contact service people.

If the above procedures still do not work, please contact our local dealers or after sales service people, inform them your air conditioner model and trouble details, they will help you solve the problem. Please do not repair the air conditioner by yourself.

Portable AC Codes

Midea Portable Air Conditioner Error Codes
Midea Portable Air Conditioner Error Codes
Error CodesCause
E1Room temperature sensor error- Unplug the unit and plug it back in. If error repeats, call for service
E2Evaporator temperature sensor error- Unplug the unit and plug it back in. If error repeats, call for service.
E4Display panel communication error- Unplug the unit and plug it back in. If error repeats, call for service.
E5The auto sliding panel malfunction- Unplug the unit and plug it back in. If error repeats, call for service.
E0Unit malfunction- Unplug the unit and plug it back in. If error repeats, call for service.
Midea Portable Air Conditioner Troubleshooting
Midea Portable Air Conditioner Troubleshooting

Remote Control Buttons Meaning

 

Midea Portable Air Conditioner Remote Control
Midea Portable Air Conditioner Remote Control

Troubleshooting

Midea AC Error Codes and Troubleshooting
Midea AC Error Codes and Troubleshooting

When troubles occur, please check the following points before contacting a repair company.

Problem: Poor Cooling Performance

Possible Causes:

  1. Temperature setting may be higher than ambient room temperature
  2. The heat exchanger on the indoor or outdoor unit is dirty
  3. The air filter is dirty
  4. The air inlet or outlet of either unit is blocked
  5. Doors and windows are open
  6. Excessive heat is generated by sunlight
  7. Too many sources of heat in the room (people, computers, electronics, etc.)
  8. Low refrigerant due to leak or long-term use
  9. SILENCE function is activated

Solution:

  1. Lower the temperature setting
  2. Clean the affected heat exchanger
  3. Remove the filter and clean it according to instructions
  4. Turn the unit off, remove the obstruction and turn it back on
  5. Make sure that all doors and windows are closed while operating the unit
  6. Close windows and curtains during periods of high heat or bright sunshine
  7. Reduce amount of heat sources
  8. Check for leaks, re-seal if necessary and top off refrigerant
  9. SILENCE function can lower product performance by reducing operating frequency. Turn off SILENCE function.

Problem: The unit is not working

Possible Causes:

  1. Power failure
  2. The power is turned off
  3. The fuse is burned out
  4. Remote control batteries are dead
  5. The Unit’s 3-minute protection has been activated
  6. Timer is activated

Solution:

  1. Wait for the power to be restored
  2. Turn on the power
  3. Replace the fuse
  4. Replace batteries
  5. Wait three minutes after restarting the unit
  6. Turn timer off

Problem: The unit starts and stops frequently

Possible Causes:

  1. There’s too much or too little refrigerant in the system
  2. Incompressible gas or moisture has entered the system
  3. The compressor is broken
  4. The voltage is too high or too low

Solution:

  1. Check for leaks and recharge the system with refrigerant
  2. Evacuate and recharge the system with refrigerant
  3. Replace the compressor
  4. Install a manostat to regulate the voltage

Problem: Poor heating performance

Possible Causes:

  1. The outdoor temperature is lower than 7°C (44.5°F)
  2. Cold air is entering through doors and windows
  3. Low refrigerant due to leak or long-term use

Solution:

  1. Use auxiliary heating device
  2. Make sure that all doors and windows are closed during use
  3. Check for leaks, re-seal if necessary and top off refrigerant

NOTE: If your problem persists after performing the checks and diagnostics above, turn off your unit immediately and contact an authorized service center.

Wiring Diagram

Midea AC Outdoor Unit Wiring Diagram
Midea AC Outdoor Unit Wiring Diagram

 

Midea AC Indoor Unit Wiring Diagram
Midea AC Indoor Unit Wiring Diagram

Manuals PDF

Air Conditioner Manual

Floor Standing AC MANUAL

Portable Air Conditioner Manual

Danny Reese


*If you can't find the code you're looking for on our site, please let us know, and we'll update our database as soon as possible.

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