Medium
7 22 on Ariston Clas Net One

Your boiler has detected that the radiator circuit serving your second heating zone is becoming significantly hotter than the system settings allow.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

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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

Zone 2 overheating

Engineer required

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

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