Medium
47 on Alpha FMK

Your boiler is still working but cannot reach its full power, meaning your radiators might not get as hot as they should or your hot water might take longer to warm up.

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

Reduced burner output

Engineer required

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

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