Valiant anti cycling function
- Thread starter Diana1990
- Start date
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Also it seems there was a heat plan or something on this boiler with previous owner, so was definitely maintained properly. (The flat was left empty for about 6mths before I moved in, during winter and early spring I may add which caused air build up I suspect) s
So can't imagine the plumbing company doing botched job. Seems to be me definitely the rad is faulty it of there is sludge its been slow build up. The boiler as stated was put in 2022 but the rads are like 15/20yrs old.
So can't imagine the plumbing company doing botched job. Seems to be me definitely the rad is faulty it of there is sludge its been slow build up. The boiler as stated was put in 2022 but the rads are like 15/20yrs old.
I'll do that next the heating is on. And report back. It's about 17c here, a d flat feels warm... So doubt heating will be on over next few days, don't wanna run it just for sake of this cause bar this cycling function everything working fine. Flat feels warm, rads heat up.... No error codes, so me will wait til I next use heating which may be within the week if temp starts to drop
There is the boiler, and then there is the heating system as a whole. The boiler might well have been serviced and well looked after. Have you any indication that the heating system as a whole has been looked after?
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How could I tell exactly? No idea if it was flushed through when boiler was installed, there was plenty of air trapped in all the rads when I bled them, the air hissing out went on for well over 30 seconds at least, possibly more.
You cannot, unless the previous owner tells you. That much air in the systems, suggests a lack of maintenance, and promote internal rusting of the radiators.
Well thank god these rads are going. Just spoke with my plumber, if there is sludge in the rads... Removing them will take it away as most sludge settles in the rads as opposed to the pipes. So power flush isn't included in the quote to replace the rads.
Will the air have settled in system given the flat was left empty for 6mths?
No, no reason why it should. On the rare occasion, that any work is carried out on my water circuit, I can go round bleeding the radiators, and getting air out, for maybe a week or two. The last place it congregates, is the bathroom rad.. After that, for years after, there will be no air to bleed ever.
Another possibility, is that what is being bled out, is hydrogen. Which results from electrolytic action in your system. You can test for that, by holding a container upside down, to catch the 'air' from bleeding, then try setting fire to it. If it burns with a pop, then it is hydrogen.
Nope lol. Won't trust myself to try that lol. I'll report with update when I next use my heating with the info you suggested. I think overall the boiler is working as it should, just maybe me being curious. But for sure with new radiators that will clear the potential sludge in that one rad.
Assuming there is sludge or build up in system, that would accumulate mostly in the rads themselves won't it as per what my plumber said? The fact it's not on any other of the rads whereas they are all heating evenly says to me that one rad has some build up, not tonight mention it could be faulty radiator
Nowt much in a radiator, to be faulty, apart from blocking up with sludge. They are just two steel panels, welded around their edges. Pipes, can and do get blocked by sludge, which is why if one rad is showing signs of obstruction, I would expect the issue to be more widespread..
Yeh, you're right. Firstly thank you for you routine replies. They are really helping. The flat I'm in was huge house converted, thus was done in 1990 but the actual house was built back in 1880. The pipes in my flat are at least 34yrs old so powerful flush could be dangerous as this may be too much pressure on the pipes. If there is any sludge at all in rads then this will be gone when I have new ones, but if there is anything like that stuck in pipes how would you clear it out?
If the potential issue is more widespread surely I'd see it on more than one radiator? For me I was under assumption that there is debris and sludge in that one rad because it's got cold spot in middle, and it's settled.
You are welcome.
My pipes and radiators etc., are much older than that - but I would have no concerns about having them power flushed, if they needed it, which they don't.
I'm not entirely sure I need a power flush at this stage. I think best way forward before spending that kinda money, see how it goes with the new rads next week, in meantime keep eye if I use heating before new ones are in and see those temps you suggested. I do remember though when I bled the rads, after the air come swooshing out, the water then trickled... It was clear. It would have brownish tint to it if any sludge or build up is present I would expect
I agree, looks OK. Maybe ask your plumber, to just investigate what is causing the problems with that radiator.
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