2 07 Medium

Ariston 2 07 Fault Code

Also written as 207 — same fault.

The Ariston 2 07 fault code means: your solar water heating system has detected that the fluid in your roof panels has become dangerously hot, likely due to a lack of sunlight usage or a system blockage.. It appears on 9 Ariston models in our database.

Book a service

This fault should be looked at by a Gas Safe engineer within the next week or two. It may get worse if left.

Technical description: Solar collector overheating
Typical repair cost £120-250 (including labour)

Engineer required

This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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Ariston models that show the 2 07 fault code

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

Source

Ariston 2 07 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