Low
on on Ariston Clas One

Your boiler is correctly powered on and is currently in standby mode or ready to provide heating and hot water.

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

The boiler is powered on

DIY fix possible

This fault may be fixable without an engineer. Check your manual first.

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