How much does it cost to fix Ariston error code 1 0 7?

Typical repair cost for the Ariston 1 0 7 fault is £90-180 including labour.

1 0 7 High

Ariston 1 0 7 Fault Code

Q: What does the Ariston 1 0 7 fault code mean?

Your boiler is not detecting enough water circulating through the system, likely because the pressure has dropped too low or there is a blockage.

Also written as 107 — same fault.

The Ariston 1 0 7 fault code means: your boiler is not detecting enough water circulating through the system, likely because the pressure has dropped too low or there is a blockage.. It appears on 1 Ariston model in our database.

Technical description: Primary circuit group anomaly

Typical repair cost £90-180 (including labour)

DIY fix possible

Check the pressure gauge on the front of the boiler; if it is below 1.0 bar, you need to top up the system.Locate the filling loop (usually two silver flexible hoses with valves underneath the boiler) to add water.Open the valves slowly to increase the pressure to approximately 1.5 bar, then ensure they are closed tightly.

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Ariston models that show the 1 0 7 fault code

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

HS Premium Repair: £90-180

Source

Ariston 1 0 7 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