How much does it cost to fix Chaffoteaux error code 07?

Typical repair cost for the Chaffoteaux 07 fault is £150-£350 including labour.

07 High

Chaffoteaux 07 Fault Code

Q: What does the Chaffoteaux 07 fault code mean?

Your boiler has stopped working because water is not moving around the internal system properly, causing it to shut down to prevent overheating.

The Chaffoteaux 07 fault code means: your boiler has stopped working because water is not moving around the internal system properly, causing it to shut down to prevent overheating.. It appears on 6 Chaffoteaux models in our database.

Technical description: No water circulation in primary circuit

Typical repair cost £150-£350 (including labour)

DIY fix possible

Check that the boiler pressure gauge is between 1 and 1.5 barEnsure all radiator valves and isolation valves under the boiler are fully openGently bleed your radiators to remove any trapped air pocketsReset the boiler using the 'R' or Reset button

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Chaffoteaux models that show the 07 fault code

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

Source

Chaffoteaux 07 fault code information on this page is sourced and cross-checked against the official Chaffoteaux service / installation manuals for each affected model.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 27 April 2026