BoilerFaultCodesChaffoteaux 1 07 Fault Code
Also written as 107 — same fault.
The Chaffoteaux 1 07 fault code means: your boiler is struggling to pump water around your heating system effectively, usually due to low pressure or trapped air.. It appears on 1 Chaffoteaux model in our database.
Technical description: Circulation insuffisante
DIY fix possible
Check your boiler's pressure gauge and top it up to between 1 and 1.5 bar using the filling loop if it is too low.Bleed your radiators to remove any trapped air that might be blocking the flow.Ensure all radiator valves are fully open to allow water to circulate freely.
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Chaffoteaux models that show the 1 07 fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Chaffoteaux 1 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 7 July 2026