BoilerFaultCodesAriston 107 Fault Code
The Ariston 107 fault code means: your boiler has detected that water is not circulating properly through the system, often caused by trapped air or a blockage.. It appears on 1 Ariston model in our database.
Technical description: All Boilers
DIY fix possible
Check that your radiator valves are fully openBleed your radiators to remove any trapped airCheck the boiler pressure is between 1 and 1.5 bar
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Gas Safe Register →Ariston models that show the 107 fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Ariston 107 fault code information on this page is sourced and cross-checked against the official Ariston service / installation manuals for each affected model.
Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 27 April 2026