Washer shows F08; may fill and drain but not heat; sometimes trips household RCD when heating should start.

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 heating element, Heater relay stuck closed on control board, Damaged heater wiring, Moisture ingress around heater terminals

Safety first: Disconnect power. If your RCD has tripped, reset only after unplugging the washer.

F08 often indicates a short in the heating circuit.

Inspect heater area: Check for signs of burning or water around the heater terminals.
Test heater to earth: Disconnect wires and measure resistance between terminals and the tub. Any reading other than infinite indicates earth leakage; replace the heater.
Check wiring harness: Look for melted insulation.
Control board: If the heater is good, the relay on the board may be stuck.

Hard 4/5

Heating Element (Wash Heater)

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