Medium
8.iv on Chaffoteaux Sterling FF

Your boiler is struggling to circulate water because the internal debris filter has become clogged, causing the pump to strain and make unusual noises.

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

Pump noisy - Water filter blocked

Engineer required

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

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