BoilerFaultCodesFerroli F47 Fault Code
The Ferroli F47 fault code means: your boiler's internal sensor is unable to detect how much water is in your heating system, so it has shut down as a precaution to prevent damage.. It appears on 10 Ferroli models in our database.
Technical description: System water pressure sensor fault
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
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Ferroli models that show the F47 fault code
Click a model for the full fault code list and model-specific repair notes.
- Arena 30 C Repair: £120-200
- Arena 30A Repair: £120-220
- Atlas D Repair: £150-250
- Bluehelix HiTech RRT Repair: £130-£240
- Bluehelix Pro RRT Repair: £150-300
- Bluehelix Tech Repair: £150-350
- Bluehelix Tech RRT Repair: £180-£450
- Bluehelix Tech RRT 24C Repair: £150-300
- Extrema C Repair: £120-220
- Maxima 35 S Repair: £120-220
Source
Ferroli F47 fault code information on this page is sourced and cross-checked against the official Ferroli service / installation manuals for each affected model.
Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 7 July 2026