Hi all. Can anyone advise ? My CH started making a moaning noise then a terrific banging. (Sorry I can't help your minds!) This got worse over a few days. I had some work done but that was 2-3 months ago, just fitting a rad as far as CH was concerned. Now the boiler won't run. Just above the boiler on the cold pipe ("return" I assume) is a bleed valse. If you open it, no water comes out. F&E tank is full. Not combi. I've bled all rads and there was no air in them. not sure why I'm not getting water at this point in system. Anu ideas? Thanks very much in advance.
CH noise then stopped
- Thread starter elcaro
- Start date
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Thanks chaps. i've been plating around a bit. You know the bleed valve on the return near the boiler, if you loosen it no water comes out? Well I thought I'd put some water in, so I attached a garden hose, opened the bleed valve and turned the hose on - got very wet! You know, I think that bleed valve may itself be blocked, as far as letting water out (or in) is concerned. So I don't really know if there is water in that pipe or not. The pump has been iffy for a while, getting very hot (before the water does) and producing a lot of vibration. If it has packed up, would it prevent circulation even by convection ? I wonder if it's worth taking a punt on a new pump (£30 quid approx) before calling in the cavalry? Cheers - Terry.
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sounds like the wholesystem is full of crap
I've got the same problem and I tried the same things - hose on boiler bleed valve etc.
I've been slowly replacing all the rads in my house now for a year so the CH has been emptied/refilled quite a few times. This time however I'm getting very loud bangs from the boiler and the pump is making very nasty noises as well.
As I've emptied the CH a few times I suspect by problem is more down to air than sludge.
Two questions:
1) What's the best way of refilling a CH system (indirect) after emptying
2) Does it sound like my pump is knackered?
I've been slowly replacing all the rads in my house now for a year so the CH has been emptied/refilled quite a few times. This time however I'm getting very loud bangs from the boiler and the pump is making very nasty noises as well.
As I've emptied the CH a few times I suspect by problem is more down to air than sludge.
Two questions:
1) What's the best way of refilling a CH system (indirect) after emptying
2) Does it sound like my pump is knackered?
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