UK Plumber Forum 

A place of resource for Plumbers and Gas Engineers in the UK.

Put your Central Heating System question in here.
#6894
Any ideas what could be causing this issue? (See video)The boiler has been making this noise since xmas and has been serviced since then by a local heating engineer. The issue has got worse progressively. The boiler has also had a new oem fan fitted to try and address the issue to no avail...... Just as an observation, this only seems to occur when the boiler is on a low output as it never seems to do it when its going full chat. Awaiting your input with baited breath!
#6896
karp boilers.
its the fan bearing?, sound like a trumpet outside.
apart from the gas burning only the fan is moving through the flue.
is it within the 7 year warrenty they wont honour?

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