BoilerFaultCodesChaffoteaux 06 Fault Code
The Chaffoteaux 06 fault code means: your boiler is automatically warming itself up because it has detected very cold temperatures, which is a normal protective feature to prevent pipes from freezing.. It appears on 7 Chaffoteaux models in our database.
Technical description: Burner anti-freeze: When the boiler senses a temperature of 3°C or lower, the boiler will fire at minimum power until a temperature of 33°C is achieved.
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 06 fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Chaffoteaux 06 fault code information on this page is sourced and cross-checked against the official Chaffoteaux service / installation manuals for each affected model.
- Chaffoteaux Calydra 100 manual (PDF)
- Chaffoteaux Calydra 24 Green manual (PDF)
- Chaffoteaux Minima HE manual (PDF)
Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 7 July 2026