Medium
3 04 on Ariston Clas One

Your boiler has been manually reset too many times in a short period and has now locked itself to prevent potential damage.

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

Too many resets (> 5) in 15 minutes

Engineer required

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

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Related fault codes

3 01View →3 02View →3 03View →

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