F06 displayed, no response to hot water demand, sometimes after power surges.

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 failure, Burnt components due to surge, Loose multi-pin connectors, Incorrect earthing

Safety: Disconnect power. Do not touch PCB tracks with power applied.

1. Visual inspection: Look for burnt marks, bulging capacitors, or corrosion on the Ferroli PCB.
2. Reseat connectors: Unplug and replug all harnesses one at a time to ensure good contact.
3. Check supply: Verify that the mains supply is stable and correctly earthed.
4. Replace PCB: If F06 persists, the board will likely need replacement and configuration by a qualified technician.

Professional Required 5/5

Main Control PCB

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