Medium
Noisy operation on Worcester Bosch Utility

Your boiler is making loud or unusual sounds, which usually means internal moving parts are either struggling to circulate water or starting to wear out.

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

Pump noise from air in pump or worn pump; Worn motor bearings; Fan out of balance

Engineer required

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

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