Thanks for your replies, everyone.
The boiler is in the cupboard with the water tank below (the tank can be seen to the right of the pipework in the photos).
Dan, what do you mean when you say it looks as if it’s been plumbed in upside-down?
There is a vent valve above the boiler, which had a...
Ah, I see what you mean now. So if it stops easily, then the pump is worn and therefore not circulating the water correctly?
The pump is less than 18 months old, so I would hope it is still going strong, but I suppose you can't be sure!
Right. I managed to get round there and have a look. I’ve tried to attach the photos but for some reason it won’t let me citing a security issue(?!).
Yes, there is a bypass valve, which was open, so I have closed it. The pump was also on the wrong setting for the type of system, so I have put...
I’m not there at the moment, so can’t give an answer about the pump. I do know there is a bypass on the system though. I will try and get a photo of the pipework.
Wondering if anyone can point me in the right direction here. My mother in law has a Vaillant EcoTEC Plus condensing boiler.
When she turns the heating on or runs the hot tap the boiler goes through it’s cycle but gets stuck at S.53, and it sounds like the boiler is kettling. I understand the...