F17
Ideal
Power Supply / Low Voltage Fault
Heater displays F17, often associated with low or fluctuating mains voltage.
Advertisements
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.
Advertisements
Possible Causes
Low mains voltage, Loose live/neutral connections, Faulty internal power supply on PCB, Shared circuit overload
How to Fix / Troubleshooting
Safety: Isolate power before tightening any terminals.
- Check socket or spur: Ensure the heater is connected to a dedicated, correctly rated supply. Avoid extension leads.
- Inspect mains terminals: A qualified person can check that live, neutral, and earth connections at the heater are tight and free from overheating.
- Monitor voltage: If low voltage is suspected, an electrician should measure supply stability and correct any wiring issues.
- PCB check: If supply is stable but F17 persists, the internal power supply section of the PCB may be faulty and require replacement.
Advertisements
Repair Difficulty
Hard
4/5
Required Part
Main Control PCB
Check Price on Amazon
We may earn a commission from links on this page.
Advertisements