How much does it cost to fix Chaffoteaux error code 2 09?

Typical repair cost for the Chaffoteaux 2 09 fault is £150-300 including labour.

2 09 High

Chaffoteaux 2 09 Fault Code

Q: What does the Chaffoteaux 2 09 fault code mean?

Your boiler has detected that the water inside the cylinder or the heating system has reached a dangerously high temperature and has shut itself down to prevent damage.

Also written as 209 — same fault.

The Chaffoteaux 2 09 fault code means: your boiler has detected that the water inside the cylinder or the heating system has reached a dangerously high temperature and has shut itself down to prevent damage.. It appears on 1 Chaffoteaux model in our database.

Technical description: Surchauffe ballon

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 2 09 fault code

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

Talia Green System Repair: £150-300

Source

Chaffoteaux 2 09 fault code information on this page is sourced and cross-checked against the official Chaffoteaux service / installation manuals for each affected model.

Chaffoteaux Talia Green System manual (PDF)

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