High
E 10 on Ariston Genus One 24

Your boiler has detected that the temperature in your underfloor heating system is too high and has safely shut down to prevent damage.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Call an engineer soon

Book a Gas Safe engineer within 24 to 48 hours. Your boiler may be unsafe or could break down completely if left.

Technical description

Contact open in the floor overheat safety device circuit (Flora room thermostat)

Engineer required

This is a high severity fault. Stop using the boiler and call a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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