E5
Midea Overcurrent Protection / Compressor Overload

Unit does not start or stops shortly after starting; E5 displayed on indoor unit

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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

Shorted or locked compressor, Faulty inverter module (for inverter models), Low supply voltage or loose power connections, Short circuit in outdoor fan or wiring harness

How to Fix / Troubleshooting

Safety first: This fault involves high current. Turn off the breaker and do not repeatedly reset if it trips. Risk of fire or further damage.

Steps to check (basic user level):

  • 1. Verify power supply: Check that the dedicated AC circuit is not overloaded with other appliances. Measure voltage (if you have a meter and know how) to ensure it is within the range specified on the nameplate.
  • 2. Inspect power wiring: With power OFF, remove the outdoor unit cover and inspect the main power terminals and wiring harness for burn marks, melted insulation, or loose screws. Tighten loose terminals gently.
  • 3. Check outdoor fan for free rotation: Spin the outdoor fan blade by hand (power OFF). It should rotate freely without grinding. A seized fan can increase current draw.

When to call a technician: E5 usually requires professional diagnosis. A technician will measure compressor winding resistance, check the inverter PCB, and test current draw. Do not attempt to bypass protection devices.

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Repair Difficulty

Professional Required 5/5

Required Part

Outdoor Inverter PCB
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