Midea Loss of Cooling Capacity / Low Refrigerant or Compressor Failure

Indoor unit runs but no cooling; air coming out is room temperature or only slightly cool

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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

Refrigerant leak in coils or piping, Weak or failed compressor, Blocked expansion device, Severely dirty condenser coil on outdoor unit

How to Fix / Troubleshooting

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

Steps to check:

  • 1. Confirm mode and settings: Ensure the unit is set to COOL mode, temperature set at least 3–5 °C below room temperature, and fan on AUTO or HIGH.
  • 2. Check indoor airflow: Clean filters and ensure strong airflow from the indoor unit. Weak airflow can mimic no cooling.
  • 3. Inspect outdoor unit: Verify that the outdoor fan and compressor are running when cooling is requested. If the outdoor unit is silent while the indoor runs, there may be a power or control issue.
  • 4. Clean outdoor coil: Remove debris and gently clean the condenser fins to improve heat rejection.

When to call a technician: If airflow is good and the outdoor unit runs but cooling is poor, a technician should check refrigerant pressures, look for leaks, and test compressor performance.

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Repair Difficulty

Hard 4/5

Required Part

Compressor Assembly
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