Medium
Complaints of noise (9) on Chaffoteaux Flexiflame 140

Your boiler is struggling to move water through its system due to a buildup of internal debris, causing it to run loudly.

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

Heat exchanger partially blocked.

Engineer required

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

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