BoilerFaultCodesAriston 106 Fault Code
The Ariston 106 fault code means: your boiler has detected that there is not enough water pressure or circulation to function properly and has shut down for safety.. It appears on 1 Ariston model in our database.
Technical description: All Boilers
DIY fix possible
Check the pressure gauge on the front of the boiler; it should be between 1 and 1.5 bar.If the pressure is too low, use the built-in filling loop (often blue levers underneath) to top up the water level.Ensure all radiator valves are fully open and restart the boiler using the reset button.
Find a Gas Safe engineer
Search the official register for a qualified engineer in your area.
Gas Safe Register →Ariston models that show the 106 fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Ariston 106 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