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It would still pass water, and has given that the rads have filled up. Because they filled so slowly, i assumed it could be a partial block. Maybe not. If it is air or sludge, how do I fix it?

I have a Glowworm 100FF gas boiler. On saturday, I drained the whole system and replaced an old radiator. It then took me ages to refil the system. After bleeding all the rads, they are now full. I also opened a vent I found near the hot water tank which expelled plenty of air. When I restart...

I have a fairly old house with beautiful original wooden frames that are as sturdy as the day they were put in by the look of them. However, I can't say the same for the glass, particularly as a couple of panes have now cracked and are on their last legs. I'm hoping to get DG units fitted...

After reading all the replies, I decided to remove the TRV section of the valve in the bedroom and replace with the protective cap. This has worked fine as the rad is now doubling up as the bypass. I think the next step is to fit a room stat in the hall, and remove that TRV, and refit the...

All rads have TRVs fitted, and as far as I'm aware, there's no bypass valve, although I'm not too sure what I'm looking for. As I've said, the system is exactly the same set up as before I changed the bedroom radiator, and that one heats up fine when the boiler is on. The boiler...

I've gone round each of the radiators in turn, but the problem still exists. All of the rads get extremely hot, so there doesn't seem to be a problem there. The one thing I did notice though, was the bathroom rad is now 'banging' when the TRV opens or closes. This never happened before I...

Thanks for the reply Chris. I did put a TRV on the new rad, but there was one on the old one, so it was like for like. Will this cause a problem?

I have recently replaced a radiator in an upstairs room, and I'm now having problems with the boiler overheating. If we just have the hot water on, everything is fine, however, if I switch the central heating on as well, all is OK for a few hours, but after a while the boiler shuts off, and...

Try losing the ATTITUDE

Hi...... I have recently replaced a radiator in an upstairs room, and I'm now having problems with the boiler overheating. If we just have the hot water on, everything is fine, however, if I switch the central heating on as well, all is OK for a few hours, but after a while the boiler...