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Hi all, Thanks for the advice breeches and seco services. It's true the screeches tends to happen when the heating is on. (or when they are both on after 1-2 hours) I think the theory about the lime scale holds water (pardon the pun) There is a big limescale problem. Going to check the valve...

Recently had to get a new pump for the system. But the problem is everytime the water is on for about an hour, there's a loud squealing noise. (pump set on 2 and then 1 and still does it) Someone said it was the pump (not enough water going through it?) and someone else said it was the three...

Replaced pump (water had got into the electrics, it also looked rusted up). £80 and its OK except now and again, if the hot water is on too long, it makes a screeching almost siren sound! Someone said the pump was dried out? Something to do with the small tank in the loft having a blocked...

You might be on to something there. I tried a 3A fuse and it went 10 minutes later. I had the hot water on and the pump was red hot with slight 'plastic overheating' smell. Does that mean the pump needs replacing?

Someone said it might be the themostat is not working and this is causing the hot water to keep heating and the hot water excess is going into the other tank in the loft - does that make sense?

When you say f/e do mean the tank in the loft? That's in good condition. But it is steaming up the loft and I'm worried about the damage it might cause.

Yes I think the pump is working. Although it was on setting number2. Last weekend put it on the 3 and then the 3amp fuse went in the fuse box by the boiler. Its a lifestyle LP241. Someone did say it might be the pump. Also wonder if there is sediment in there as when I bleeded the...

Have exactly the same probelm. Its air trapped in the pipes. Also sometimes it can mean there's some rust in there. As there can be sediment that builds up in the pipes causing more pressure. Hence the pipes expand and contract and you hear the banging and clanging. I've heard you can get you...

Hi all, I've got a problem with the central heating. Can anyone tell me why / what causes water to enter the header tank from the central heating. The boiler is making lots of clanking noises. Is it the trapped air causing the water into the header tank? Thanks for any answers. Jim