We have just had a plumber sent by our Landlord to sort out our heating problem, and he has given up and left it even worse
Hot water tank only getting half warm
heaters all getting hot, but gurgling with air (nitrogen)
Hot water tank getting very hot (ok)
radiators 2 warm (not hot) 6 Radiaters stone cold.
Plumber stated air in system ( we had air in before, and they got hot)
he gave up and left saying leave it on for 3 days, it might clear.
I think they flushed out a partial blockage in one rad, and it has clogged up all the rads at the flow regulator valve.
any ideas, should I open up the flow regulator valves, ( not the t/stat valve as they are wide open)
did the plumber drain the central heating? if so could be air but id guess the system needs to be balanced would need more info
Plumber did drain system, then used a flushing pump, now the H/W tank gets hot, but the rads are cold, could the blockage have moved to the flow valves on most of the rads, 3 heaters are now hot, and 5 are ice cold, I had a lot of air in the rads before the flush, and they all got hot, not sure air is a problem, pump is a Grundfos 15-60
Probably an airlock - turn off all but the problem radiators and see if it clears.
You pay your rent - get onto your landlord and get the plumber back. If any good, he should sort it in no time at all. Not your problem, I undertstand when you own a property you don't want expensive repairs and plumbers bills. But with rented accommodation - you very rarely get your monies worth when it comes to upgrading and improvements. Instead of going cold and repairing things yourself - get your monies worth when you can - that's what you pay rent for, troublefree housing.
I am not a plumber, I am a retired 70 year old mechanic. and after the plumber could not sort out my hot water system, I set about it my self.
Hot tank gets hot,,OK,, radiators after plumber flushed them did not, and he left saying he was wasting his time, it needed a new system, so I tried myself to get them to warm up, by only opening one heater at a time and bleeding it, no luck.
Now to all you plumbers who get this fault, here is what I did.
I took off the Grunfos pump, turned it round and pumped the water the other way around the system great ,,now they all got hot, then I turned the pump back, and it works a treat, a long job , but it works, (back feed)
Effective way of clearing airlocks, works pretty much everytime. Abit more than an average DIYer would want to undertake though. Especially when isolating the pump - no leaks on pumps valves ? the ball type (where you have to use a screwdriver to isolate) nearly always leak - gate valve type are the best.
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