Midea Air Conditioner Error Codes: Common Codes and What They Mean

Error codes appearing on your Midea air conditioner can be confusing. Below, we’ll explain the most common Midea air conditioner error codes, what typically causes them, and DIY-friendly troubleshooting methods you can do.

Air Care Solutions provides fast support across Sydney and NSW, offering air conditioning maintenance services and urgent repairs.

Important Safety Notes Before Checking Your Midea AC

Before doing any troubleshooting:

  • Do not open AC panels or touch internal wiring.
  • Do not attempt electrical repairs.
  • If needed, turn the system off at the isolator and wait for a few minutes before restarting.
  • If you notice a burning smell, a buzzing noise, or the breaker tripping, switch the AC off and call a professional.
  • If the unit doesn’t restart, turn the AC off and call a technician.

Important Note: Midea AC systems use inverter technology and electronic controls. Incorrect handling can cause further damage or void warranties.

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Common Midea Air Conditioner Error Codes

The table below lists common Midea error codes. We’ve included what each code means, the typical causes of each error, and which units or product series they commonly appear on.

Note: Error code appearances may differ slightly by model. A licensed technician can confirm the exact fault using your system’s model and serial number.

Error Code What It Means Common Causes Common On:
E0 The outdoor unit’s control memory has an error ‣ Corrupted control data due to a power interruption.

‣ Electrical surge.

‣ Outdoor PCB software issue.

‣ R Series

‣ 9V Series

‣ 9A Series

‣ Outdoor Units

E1 The indoor and outdoor units aren’t communicating properly ‣ Loose or damaged communication wiring

‣ Incorrect terminal connections

‣ Faulty indoor or outdoor control board

‣ R Series

‣ 9V Series

‣ 9A Series

E2 The indoor unit can’t detect the correct electrical signal timing ‣ Control board signal fault

‣ Electrical interference or unstable power

‣ Indoor PCB issue

‣ R Series

‣ 9V Series

‣ 9A Series

E3 The indoor fan isn’t running at the expected speed ‣ Dirty air filters restricting airflow

‣ Indoor fan motor fault

‣ Fan speed feedback signal error

‣ R Series

‣ 9V Series

‣ 9A Series

E5 The outdoor temperature sensor isn’t reading correctly ‣ Sensor wiring disconnected or damaged

‣ Sensor failure due to weather exposure

‣ Outdoor PCB issue

‣ R Series

‣ 9V Series

‣ 9A Series

E6 The temperature inside the system has failed ‣ Faulty room temperature sensor

‣ Evaporator sensor open or short circuit

‣ Wiring connection issue

‣ R Series

‣ 9V Series

‣ 9A Series

E7 The outdoor fan speed isn’t being controlled properly ‣ Outdoor fan motor issue

‣ Fan feedback signal fault

‣ Outdoor PCB malfunction

‣ 9V Series

‣ 9A Series

P0 The compressor temperature is too high ‣ Restricted airflow around the outdoor unit

‣ Dirty condenser coil

‣ Refrigerant imbalance

‣ High ambient temperature

‣ Outdoor units
P2 The compressor top temperature has exceeded safe limits ‣ Inadequate outdoor ventilation

‣ High refrigerant pressure

‣ Outdoor fan not operating correctly

‣ R Series

‣ 9V Series

‣ 9A Series

P4 The inverter compressor drive is detecting an abnormal condition ‣ Compressor position error

‣ Inverter drive fault

‣ Electrical supply issue

‣ R Series

‣ 9V Series

‣ 9A Series

‣ Outdoor Units

P5 The inverter module is protecting itself from damage ‣ Overheating inverter module

‣ Blocked condenser coil

‣ Fan motor or airflow issue

‣ Electrical surge

‣ R Series

‣ 9V Series

‣ 9A Series

‣ Outdoor Units

What the Common Midea Error Codes Usually Indicate

  • Communication and Control Errors (E0, E1, E2): These errors are often linked to wiring issues, power interruptions, or control board faults.
  • Fan and Sensor Errors (E3, E5, E6, E7): These errors typically caused by blocked airflow, failed sensors, or fan motor problems.
  • Compressor and Inverter Protection (P0, P2, P4, P5): This is triggered when the system detects overheating, pressure imbalance, or abnormal electrical conditions.

Note: Error codes warn and prevent serious damage, but they also mean the system won’t operate normally until the issue is resolved.

Safety Steps You Can Take Before Calling a Professional

Before calling a technician for professional services, there are a few simple checks you can do that may help clear minor faults. These steps won’t fix major electrical or mechanical issues, but they can sometimes fix temporary system errors.

  • 1. Do a full power reset

    • Switch your AC system off at the remote or wall controller, then turn it off at the isolator switch near the outdoor unit or switchboard.
    • Wait for 3-5 minutes to allow internal control boards to reset.
    • Turn the power back on and restart the system.

    Temporary communication or control errors, like E0, E1, or E2, can occasionally clear after a full reset.

  • 2. Clean and refit indoor air filters

    Open the indoor unit and remove the air filters. If they’re dusty or clogged, wash them gently with water and let them dry fully before reinstalling.

    Dirty filters can restrict airflow, cause the indoor fan to operate outside normal speed ranges, or contribute to overheating or sensor-related fault codes.

  • 3. Clear the outdoor unit of debris and ensure proper ventilation

    Poor ventilation can lead to high compressor temperatures and trigger protection codes like P-, P2, or P5. Check the outdoor condenser unit and make sure:

    • There are no leaves, dirt, or debris blocking the coil
    • The unit has adequate space around it (especially at the sides and rear)
    • Storage items, walls, fences, or garden growth do not restrict airflow.
  • 4. Confirm power supply stability

    Did you recently experience a power outage, electrical work, circuit breaker trips, or storm activity?

    Sometimes errors can be linked to power disturbances instead of mechanical faults. If the system restarts normally after a reset but later faults again, it’s likely because of an underlying electrical or control issue that needs professional diagnosis.

  • 5. Take note of when the error occurs

    Pay attention to whether:

    • The error appears immediately on startup or after running for some time.
    • It occurs during cooling, heating, or both.
    • The system shuts down completely or continues running with limited performance

    If you can’t resolve the error yourself, this information is extremely helpful for technicians and it speeds up fault identification.

When to Call a Professional Technician for Help

Book a licensed technician and avail of professional services when:

  • The same error code returns after a reset.

  • Cooling or heating performance has dropped significantly.

  • The system keeps shutting down on its own.

  • The circuit breaker trips repeatedly.

  • You hear unusual noises from the outdoor unit.

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Get Help for MideaError Codes in Sydney?

Is your Midea air conditioner not responding to basic checks? Air Care Solutions is here to help. We service Midea AC systems and provide accurate fault diagnosis, professional repairs, and ongoing maintenance support.

Contact us today to book an inspection or urgent repair, and get your system running safely again.

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