Washer may freeze mid-cycle or not start; F18 displayed on some digital models.

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

Internal PCB communication failure, Power surge damage, Faulty microcontroller, Loose or oxidized PCB connectors

Safety: Disconnect mains power before accessing electronics.

F18 is a serious internal control error.

Power reset: Unplug for at least 15 minutes, then reconnect and test. If F18 returns immediately, the fault is likely permanent.
Inspect PCB: Look for obvious damage such as burnt components, bulging capacitors, or corrosion. Reseat all connectors.

There is no reliable DIY repair for a failed microcontroller. The main control board will usually need replacement by a qualified technician.

Professional Required 5/5

Main Control Board (PCB)

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