Medium
8.6 on Glow-worm Space Saver 30 40 50

Your boiler is vibrating or making unusual banging or whistling noises while running, which often indicates trapped air in the system or a build-up of internal debris.

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.

What the manual says

Manufacturer manual

Appliance Noisy in Operation

From this model's manual
Verified against the Glow Worm Space Saver 30 40 50 installation & service manual.
Plain-English guidance below. Severity, DIY steps, costs and parts are our interpretation to help you act, not text from the manual.

Engineer required

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

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