Microwave shows E10 and beeps; clock may work but no cooking functions operate.

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

Defective low-voltage power supply on PCB, Loose mains connection at terminal block, Undervoltage from wall outlet, Internal fuse partially failing under load

How to Fix / Troubleshooting

Safety: Unplug the microwave before checking the power connection.

Check outlet: Test the wall socket with another high-power appliance (e.g., kettle). If that also struggles, have an electrician check the circuit.
Avoid extension leads: Plug the Princess microwave directly into a properly grounded wall outlet.
Power reset: Unplug for 10 minutes, then reconnect and test.
If E10 persists: The internal low-voltage supply or main PCB likely needs replacement by a technician.

Repair Difficulty

Hard 4/5

Required Part

Main Control Board

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