F50
Ferroli Fan Speed / Air Pressure Fault

Boiler displays F50; may indicate a fan speed or air pressure switch fault on some Ferroli models.

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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.

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Possible Causes

Faulty fan, Blocked air pressure switch tubing, Faulty air pressure switch, PCB fan control fault

How to Fix / Troubleshooting

Safety first: Fan and flue systems are safety-critical. Only qualified engineers should work on them.

  • User checks: Ensure the flue terminal is not obstructed.
  • Engineer checks:
    • Test fan operation and speed feedback.
    • Inspect and clear air pressure switch tubes.
    • Replace the air pressure switch or fan as required.
    • Check PCB outputs and replace PCB if necessary.
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Repair Difficulty

Professional Required 5/5

Required Part

Fan Assembly
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