Washer shows F18, often associated with communication or power supply issues

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

Unstable mains voltage, faulty power supply section on control board, loose mains filter connections, interference from other appliances

Safety first: Unplug the washer.

Check mains socket: Plug another high-load appliance (like a kettle) into the same socket to verify stable power. Avoid extension leads.
Inspect mains filter: Remove the rear panel and locate the mains interference filter where the power cord enters. Check for burnt connectors or loose wires.
Power reset: Leave unplugged for 15 minutes, then reconnect directly to a wall outlet and test.

If F18 recurs: The internal power supply on the main control board may be failing and the board will likely need replacement.

Hard 4/5

Main Control Board

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