How much does it cost to fix Chaffoteaux error code Fig. 17?

Typical repair cost for the Chaffoteaux Fig. 17 fault is £150-300 including labour.

Fig. 17 Emergency

Chaffoteaux Fig. 17 Fault Code

Q: What does the Chaffoteaux Fig. 17 fault code mean?

Your boiler is releasing excess water because the internal pressure is too high or the safety valve has been triggered to prevent damage from overheating.

Also written as FIG17 — same fault.

The Chaffoteaux Fig. 17 fault code means: your boiler is releasing excess water because the internal pressure is too high or the safety valve has been triggered to prevent damage from overheating.. It appears on 1 Chaffoteaux model in our database.

Technical description: Discharge from temperature and pressure relief valve

Typical repair cost £150-300 (including labour)

Engineer required

This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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Chaffoteaux models that show the Fig. 17 fault code

Click a model for the full fault code list and model-specific repair notes.

Duo Repair: £150-300

Source

Chaffoteaux Fig. 17 fault code information on this page is sourced and cross-checked against the official Chaffoteaux service / installation manuals for each affected model.

Chaffoteaux Duo manual (PDF)

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 7 July 2026