Noise from tank in airing cupboard

9 Mar 2007
Reaction score
United Kingdom
Please help! We were woken a few days ago by loud noises from the airing cupboard. It sounds like water being dropped into the tank from a great height. Coincidence perhaps, I'm not sure, but our boiler downstairs then stopped working and we have just had a new motor fitted. The noise from the tank is still there. There are 2 radiators in bedrooms above the airing cupboard and they are full of air but bleeding them does not help. They hiss for a few seconds, then nothing. All other radiators in the house are working fine.
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The boiler is a Baxi.

The noise is there for the whole time that the water and heating are on. it started 3 days ago. It sounds like a big cauldron bubbling!
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If header tank full then there must be a blockage in the cold fill where it joins the heating pipe work.

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