Medium
S.58 on Heatline Monza

Your boiler is temporarily running at a fixed heat setting because it has detected an unusual operating condition it needs to manage.

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

A fi xed modulation until the condition provides

Engineer required

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

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