XXXXX XXXXX : It sounds like your PRV is faulty, as
XXXXX XXXXX : like you said it should hold 3 bar
XXXXX XXXXX : But it may point to another problem - where is the water coming from if the pressure is not dr4op
XXXXX XXXXX : *dropping
XXXXX XXXXX : You may have a passing filling loop which is constantly filling the system
XXXXX XXXXX : It used to hold 3 bar, but can now only hold 2 bar, hence the constant drip
XXXXX XXXXX : Can you disconnect the filling loop and see if it drips constantly and the pressure drops on the boiler?
Sorry for the delay, electricity just cut out for a few minutes in the whole apartment complex so internet went down. I was assuming the system was designed to fill itself if the volume drops. So you're saying maybe it's filling constantly + a safety valve which can't handle its full 3 bar pressure anymore may be causing the drip?
By disconnect the filling loop do you mean just turn off the valve that allows water into the system?
XXXXX XXXXX : Turn off both ends and disconnect entirely
XXXXX XXXXX : We need to see if it drips when off
I can't see any valve to turn off the water, only the ones for the gas so I suppose I'll have to call someone out to have a look, still thanks for the help. Just one last question, I dusted off the safety release valve, it says 3 bar on top and has an arrow drawn suggesting it can be turned, it also seems loose. Can these safety valves be unscrewed or opened by turning this part on top?
XXXXX XXXXX : You have to swap the whole thing to replace it, you can twist it to release pressure but it may not reseat correctly
XXXXX XXXXX : Do you have a silver flexible filling loop attached to the pipework under the boiler?
I checked pictures of a filling loop online and there is nothing like that. All of the pipes are solid copper, they come out of the concrete underneath and straight into the boiler
XXXXX XXXXX : Page 10 of the manual shows that there is an external one to be fitted
XXXXX XXXXX : http://www.bhl.co.uk/uploads/article1473/Ideal%20Mini%20HE%20C%20Combi%20Boilers%2024,28,32%20Manual.pdf
XXXXX XXXXX : If you cannot see one, can you see where one might be connected?
XXXXX XXXXX : Just the valves left?
No I can't see anywhere a filling loop could be connected. While I was in close to the boiler and pipes I could hear a slight sound of water moving through a pipe. It seems to be coming from that valve connected to the discharge pipe leading outside
XXXXX XXXXX : ok, it may be in the airing cupboard but it must be in sight of the pressure gauge......
XXXXX XXXXX : unless there is an additional one fitted somewhere?
The whole boiler is in a small cuboard, the the gas and water pipes feeding into it from below are all visible. They're coming up from a concrete floor, below this is another apartment and behind this is another apartment. So I cant see anywhere in or around the boiler that looks like a filling loop could be connected to it.
There is the hotpress with the how water tank in it, maybe there's something there
XXXXX XXXXX : it could be anywhere on the heating system
There is still nothing resembling a filling loop or connector in the hotpress but there are valves with red handles
XXXXX XXXXX : Linking the cold water main to the heating?
Yep this seems to be where the mains water enters the system
XXXXX XXXXX : I hope not as red handled gate valves are not guaranteed to shut off against mains pressure
XXXXX XXXXX : Are you able to disconnect or have they broken another water bylaw and piped it in copper?
These apartments were thrown up during the boom years, nothing like that would surprise me
XXXXX XXXXX : Ok, 2 things for the plumber -
XXXXX XXXXX : 1. Replace the PRV
Yep all pipes entering and leaving are copper
XXXXX XXXXX : 2. Repipe the filling point as per the manufacturer's instructions
XXXXX XXXXX : This can then be disconnected when not needed
So I can easily shut off water coming into the boiler? Thanks
XXXXX XXXXX : At least you can get a price over the phone before anyone comes out to you and charge you what they want!
That was why I wanted some sort of idea what the problem was first, cheers
XXXXX XXXXX : No problem.
XXXXX XXXXX : Well found, good luck