Midea Overcurrent / Short Circuit Protection

Microwave shows H5; unit may not start or may shut down with a protection beep.

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.

Possible Causes

Shorted high-voltage diode, Shorted magnetron, Shorted wiring harness in HV section, Faulty inverter or transformer drawing excessive current

How to Fix / Troubleshooting

Critical safety warning: This error indicates a potential short in the high-voltage system. Unplug the microwave immediately and do not attempt to operate it. High-voltage troubleshooting must be done by a qualified technician.

User-level action: Disconnect power and arrange for professional service. Do not open the cabinet or attempt to bypass fuses or safety devices.

Repair Difficulty

Professional Required 5/5

Required Part

High-Voltage Diode / Magnetron for Midea Microwave

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