Low
60-70 (ll-ll) on Ariston Clas HE 24

Your boiler has detected that the temperature is low and has automatically turned itself on to circulate water and prevent your pipes from freezing.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Monitor it

This is a minor fault. Keep an eye on it and mention it at your next annual boiler service. Reset the boiler and see if it clears.

Technical description

Anti-frost mode on (burner and pump in operation)

Engineer required

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

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