What is this boiler noise?!


Old 05-09-17, 11:59 AM
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What is this boiler noise?!

Hi all,

Wondering if you could advise on the attached video - my boiler has started making a loud clanging sound and i'm not sure what it is; any ideas?

Boiler is a Glowworm Ultracom2 30sxi.


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Old 05-09-17, 12:19 PM
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What is the system pressure and temperature when you hear the noise?
Old 05-09-17, 12:23 PM
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Glow Worm is a UK boiler that I'm not familiar with.

Very hard to tell what that noise is from the video. It sounds like a damper rattling.
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