F6
Midea Low Refrigerant or Compressor Overload (Model-dependent Protection Code)

Unit shows F6; compressor speed limited and poor cooling/heating

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Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

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Possible Causes

Low refrigerant charge, Blocked expansion device or capillary, Overheating compressor, Faulty current sensing on inverter PCB

How to Fix / Troubleshooting

Safety first: Do not attempt to open refrigerant lines. Turn off power before removing covers.

Steps to check (user level):

  • 1. Clean indoor and outdoor coils: Dirty coils can cause abnormal pressures and trigger F6. Clean filters and coils as described in other entries.
  • 2. Ensure proper airflow: Remove obstructions around indoor and outdoor units.
  • 3. Avoid extreme settings: Set temperature to a moderate value (e.g., 24 °C) and fan to AUTO or MEDIUM to reduce compressor stress.

When to call a technician: F6 often indicates a refrigerant or compressor issue. A technician should check system pressures, superheat/subcooling, and inverter current to determine if there is a leak, blockage, or compressor fault.

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Repair Difficulty

Professional Required 5/5

Required Part

Compressor Assembly
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