Midea Air Conditioners Error Codes
Complete list of fault codes and troubleshooting guides. Use the search below to find your specific error.
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C0
Display shows C0; the unit may not respond to the remote or may operate in a limited mode.
EEPROM or Configuration Error
E1
Indoor unit stops and displays E1; the unit may not respond to the remote or buttons.
Indoor/Outdoor Communication Failure
E2
Indoor unit stops cooling and displays E2; it may run briefly then shut down.
Indoor Evaporator Coil Freeze Protection / Anti-freeze Protection
E3
Outdoor unit stops and E3 appears; the unit may start then quickly shut down in cooling mode.
High-Pressure Protection / Outdoor Overload Protection
E4
The unit stops in heating mode and displays E4; it may blow cold air before shutting down.
Defrost Protection / Outdoor Coil Overheat or Frost Protection
E5
The unit does not start or stops shortly after starting; E5 is displayed on the indoor unit.
Overcurrent Protection / Compressor Overload
E6
Indoor unit shows E6 and stops; this sometimes occurs during a mode change or startup.
Indoor-Outdoor Communication Error (Alternate Code) / Zero-Crossing or Feedback Error
E7
Indoor unit displays E7; the unit may not respond to mode changes or may run in the wrong mode.
Mode Conflict / Indoor-Outdoor Mode Mismatch
E8
Unit stops and displays E8; may be accompanied by very low or no airflow from the indoor unit.
Indoor Fan Motor Fault / Overload Protection
E9
Indoor unit shows E9; sometimes associated with water leakage or a full drain pan.
Full Water Protection / Condensate Pump or Float Switch Fault (for some cassette/ducted models)
F0
Unit displays F0 and stops cooling; it may restart and fail again.
Refrigerant Leakage Protection / Low Refrigerant Protection
F1
Indoor unit displays F1; the unit may run but with poor temperature control.
Indoor Ambient Temperature Sensor (T1) Fault
F2
Indoor unit displays F2; the unit may stop or run erratically.
Indoor Evaporator Coil Temperature Sensor (T2) Fault
F3
Outdoor unit or system displays F3; heating or cooling performance is unstable.
Outdoor Ambient Temperature Sensor (T4) Fault
F4
System shows F4; the compressor may not start or may shut down quickly.
Outdoor Discharge Pipe Temperature Sensor (T3) Fault
F5
Unit displays F5; it may occur during heating or cooling with poor performance.
Outdoor Coil Temperature Sensor Fault or Overload (Model-dependent)
F6
Unit shows F6; compressor speed is limited and cooling/heating performance is poor.
Low Refrigerant or Compressor Overload (Model-dependent Protection Code)
F7
Unit displays F7; it may not start or may shut down unexpectedly.
Outdoor Fan Motor Fault (Alternate Code) or Phase Protection (for some models)
F8
Unit displays F8; may relate to indoor fan or overheat protection depending on the model.
Indoor Fan Overload / Overheat Protection
F9
Unit displays F9; may be associated with abnormal defrost or heating performance.
Defrost Sensor or Defrost Protection Fault
H1
Display shows H1; the indoor unit may blow cold air or stop during heating.
Defrost Mode Indication (Not a Fault) / Heating Delay
H3
Unit stops and displays H3; the compressor does not run.
Compressor Overload Protection / Overheat
H4
Unit displays H4; it may restart after a power cycle then fail again.
Inverter Module Protection / Drive Error
H5
Unit displays H5; the system may not start or may shut down quickly.
IPM Protection / Current Protection (Alternate Code)
P0
Unit displays P0; the compressor may not start or may run at reduced capacity.
DC Bus Voltage Protection / Inverter Power Supply Fault
P1
Unit displays P1; it may shut down during operation, especially in cooling mode.
High or Low Voltage Protection (Indoor or Outdoor)
P2
Portable Midea AC displays P2; the unit stops cooling and may beep.
Full Condensate Tank / High Water Level Protection (Portable AC)
P4
Unit displays P4; compressor may not run or may shut down intermittently.
Inverter Module Overheat Protection
Symptom
Burning, electrical, or plastic smell from indoor or outdoor unit
Overheating Electrical Component or Insulation
Symptom
Indoor unit display or LEDs flicker, dim, or go blank intermittently
Indoor Control Power Instability
Symptom
Indoor unit does not power on at all; no lights or display.
No Power to Indoor Unit
Symptom
Indoor unit runs but no cooling; air coming out is room temperature or only slightly cool.
Loss of Cooling Capacity / Low Refrigerant or Compressor Failure
Symptom
Indoor unit runs but no heating in HEAT mode; air is cool or only slightly warm.
Heat Pump Heating Failure
Symptom
Loud humming, buzzing, or grinding noise from the outdoor unit.
Outdoor Mechanical Noise / Fan or Compressor Issue
Symptom
Loud rattling, buzzing, or grinding noise from the indoor unit during operation.
Indoor Mechanical Noise / Fan or Panel Vibration
Symptom
Outdoor unit does not run while the indoor unit appears normal (blowing room temperature air).
Outdoor Unit Power or Control Failure
Symptom
Remote control does not operate the indoor unit
Remote Control or IR Receiver Failure
Symptom
The indoor unit emits a musty, moldy, or sour smell when operating.
Biological Growth on Evaporator Coil and Drain Pan
Symptom
Unit frequently turns on and off (short cycling) without reaching set temperature
Short Cycling / Control or Capacity Issue
Symptom
Unit runs continuously and room becomes too cold or too hot; does not stop at set temperature
Thermostat / Sensor Control Failure
Symptom
Unit vibrates excessively, causing noise and movement of the outdoor or indoor unit
Excessive Vibration / Mounting Issue
Symptom
Water dripping from the front of the indoor unit or from the air outlet.
Indoor Unit Water Leakage
Symptom
Water leaking from the outdoor unit base or around piping connections.
Outdoor Unit Water Leakage / Condensate or Defrost Drain Issue
| Error Code | Symptom | Fault Type | Guide |
|---|---|---|---|
| C0 |
Display shows C0; the unit may not respond to the remote or may operate in a limited mode.
|
EEPROM or Configuration Error | View Details |
| E1 |
Indoor unit stops and displays E1; the unit may not respond to the remote or buttons.
|
Indoor/Outdoor Communication Failure | View Details |
| E2 |
Indoor unit stops cooling and displays E2; it may run briefly then shut down.
|
Indoor Evaporator Coil Freeze Protection / Anti-freeze Protection | View Details |
| E3 |
Outdoor unit stops and E3 appears; the unit may start then quickly shut down in cooling mode.
|
High-Pressure Protection / Outdoor Overload Protection | View Details |
| E4 |
The unit stops in heating mode and displays E4; it may blow cold air before shutting down.
|
Defrost Protection / Outdoor Coil Overheat or Frost Protection | View Details |
| E5 |
The unit does not start or stops shortly after starting; E5 is displayed on the indoor unit.
|
Overcurrent Protection / Compressor Overload | View Details |
| E6 |
Indoor unit shows E6 and stops; this sometimes occurs during a mode change or startup.
|
Indoor-Outdoor Communication Error (Alternate Code) / Zero-Crossing or Feedback Error | View Details |
| E7 |
Indoor unit displays E7; the unit may not respond to mode changes or may run in the wrong mode.
|
Mode Conflict / Indoor-Outdoor Mode Mismatch | View Details |
| E8 |
Unit stops and displays E8; may be accompanied by very low or no airflow from the indoor unit.
|
Indoor Fan Motor Fault / Overload Protection | View Details |
| E9 |
Indoor unit shows E9; sometimes associated with water leakage or a full drain pan.
|
Full Water Protection / Condensate Pump or Float Switch Fault (for some cassette/ducted models) | View Details |
| F0 |
Unit displays F0 and stops cooling; it may restart and fail again.
|
Refrigerant Leakage Protection / Low Refrigerant Protection | View Details |
| F1 |
Indoor unit displays F1; the unit may run but with poor temperature control.
|
Indoor Ambient Temperature Sensor (T1) Fault | View Details |
| F2 |
Indoor unit displays F2; the unit may stop or run erratically.
|
Indoor Evaporator Coil Temperature Sensor (T2) Fault | View Details |
| F3 |
Outdoor unit or system displays F3; heating or cooling performance is unstable.
|
Outdoor Ambient Temperature Sensor (T4) Fault | View Details |
| F4 |
System shows F4; the compressor may not start or may shut down quickly.
|
Outdoor Discharge Pipe Temperature Sensor (T3) Fault | View Details |
| F5 |
Unit displays F5; it may occur during heating or cooling with poor performance.
|
Outdoor Coil Temperature Sensor Fault or Overload (Model-dependent) | View Details |
| F6 |
Unit shows F6; compressor speed is limited and cooling/heating performance is poor.
|
Low Refrigerant or Compressor Overload (Model-dependent Protection Code) | View Details |
| F7 |
Unit displays F7; it may not start or may shut down unexpectedly.
|
Outdoor Fan Motor Fault (Alternate Code) or Phase Protection (for some models) | View Details |
| F8 |
Unit displays F8; may relate to indoor fan or overheat protection depending on the model.
|
Indoor Fan Overload / Overheat Protection | View Details |
| F9 |
Unit displays F9; may be associated with abnormal defrost or heating performance.
|
Defrost Sensor or Defrost Protection Fault | View Details |
| H1 |
Display shows H1; the indoor unit may blow cold air or stop during heating.
|
Defrost Mode Indication (Not a Fault) / Heating Delay | View Details |
| H3 |
Unit stops and displays H3; the compressor does not run.
|
Compressor Overload Protection / Overheat | View Details |
| H4 |
Unit displays H4; it may restart after a power cycle then fail again.
|
Inverter Module Protection / Drive Error | View Details |
| H5 |
Unit displays H5; the system may not start or may shut down quickly.
|
IPM Protection / Current Protection (Alternate Code) | View Details |
| P0 |
Unit displays P0; the compressor may not start or may run at reduced capacity.
|
DC Bus Voltage Protection / Inverter Power Supply Fault | View Details |
| P1 |
Unit displays P1; it may shut down during operation, especially in cooling mode.
|
High or Low Voltage Protection (Indoor or Outdoor) | View Details |
| P2 |
Portable Midea AC displays P2; the unit stops cooling and may beep.
|
Full Condensate Tank / High Water Level Protection (Portable AC) | View Details |
| P4 |
Unit displays P4; compressor may not run or may shut down intermittently.
|
Inverter Module Overheat Protection | View Details |
| – |
Burning, electrical, or plastic smell from indoor or outdoor unit
|
Overheating Electrical Component or Insulation | View Details |
| – |
Indoor unit display or LEDs flicker, dim, or go blank intermittently
|
Indoor Control Power Instability | View Details |
| – |
Indoor unit does not power on at all; no lights or display.
|
No Power to Indoor Unit | View Details |
| – |
Indoor unit runs but no cooling; air coming out is room temperature or only slightly cool.
|
Loss of Cooling Capacity / Low Refrigerant or Compressor Failure | View Details |
| – |
Indoor unit runs but no heating in HEAT mode; air is cool or only slightly warm.
|
Heat Pump Heating Failure | View Details |
| – |
Loud humming, buzzing, or grinding noise from the outdoor unit.
|
Outdoor Mechanical Noise / Fan or Compressor Issue | View Details |
| – |
Loud rattling, buzzing, or grinding noise from the indoor unit during operation.
|
Indoor Mechanical Noise / Fan or Panel Vibration | View Details |
| – |
Outdoor unit does not run while the indoor unit appears normal (blowing room temperature air).
|
Outdoor Unit Power or Control Failure | View Details |
| – |
Remote control does not operate the indoor unit
|
Remote Control or IR Receiver Failure | View Details |
| – |
The indoor unit emits a musty, moldy, or sour smell when operating.
|
Biological Growth on Evaporator Coil and Drain Pan | View Details |
| – |
Unit frequently turns on and off (short cycling) without reaching set temperature
|
Short Cycling / Control or Capacity Issue | View Details |
| – |
Unit runs continuously and room becomes too cold or too hot; does not stop at set temperature
|
Thermostat / Sensor Control Failure | View Details |
| – |
Unit vibrates excessively, causing noise and movement of the outdoor or indoor unit
|
Excessive Vibration / Mounting Issue | View Details |
| – |
Water dripping from the front of the indoor unit or from the air outlet.
|
Indoor Unit Water Leakage | View Details |
| – |
Water leaking from the outdoor unit base or around piping connections.
|
Outdoor Unit Water Leakage / Condensate or Defrost Drain Issue | View Details |
No matching codes found
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