TF1 magnetic filter, noisy

Joined
29 Oct 2008
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London
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United Kingdom
Has anyone else got a TF1? I have one fitted on my central heating return pipe by the boiler, and it makes a sound when on (when boiler is not firing but pump is on overrun it more noticeable) - sounds like water velocity noise coming from it. I've bled it and some air comes out of the air vent but it still happens. Anyone else had this? It does a good job, when I cleaned it out, loads of crap was on ther magnetic rod, but it's quite noisy, water running sound, when on!
 
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My TF1 is quiet.

Has yours always been noisy? What about when the heating is on?

You say you've bled the system. Is it a sealed system? Did you top it with water? If so is the pressure correct both on the boiler and in the airing cupboard?
 
it's an open vented system - works fine. The tf1 is on the return pipe, vertically above the boiler. it's always been like this, with the heating on, but when the burner goes off, and pump overrun continues, it was more noticeable.
 

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