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confused - buzzing noise from hot cylinder tank

Posted: Wed Jul 25, 2007 8:57 pm
by tiam
Hi,
Can anyone tell me why this is happening? The constant buzzing noise is coming from just below the pump. Could it be the valves that is faulty?

Last week,I had my heating system flushed because all the radiators were not working downstairs during the last winter - only the upstairs ones were working.

I am quite concerned about the noise. My boiler is a Potterton Netaheat & its about 20 yrs old. Do you think it could be due to the boiler because its old?

Hope you can help.

Cheers