High
E 10 on Ariston Genus Premium

Your boiler has stopped heating because a safety sensor has detected that your underfloor heating system is getting too hot or there is a break in the connection to its thermostat.

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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