Boiler Fault Code 2 07

Also written as 207 — same fault.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 27 April 2026

Fault code 2 07 appears across 1 boiler brand and 9 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.

Most common meaning 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. (As reported on Ariston Clas HE 24)