Medium
13 on Ariston E-Combi One 30

Your boiler is having difficulty performing its standard internal check, which often indicates a temporary communication glitch or a minor sensor conflict.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Book a service

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

Check of the general performance of the unit.

Engineer required

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

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Related fault codes

101View →501View →

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