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thanks so much for your help Picasso.

Thanks I just had British Gas out last week and they did their annual service and passed it. Should I get them back? What sort of thing could be causing this?

So part 15 on this diagram is the nrv. it has a grub screw holding the elbow in pace. If I isolate the mains do you think it would be as easy as taking the grub out and removing the nrv or will the whole shower mixer have to be disassembled to get at the nrv?

Thanks. No we've only one shower but the bath does have a mixer tap with a shower attachment (not sure if that is of any importance). So I've checked the tempo that pipe you highlighted and it was really hot when I switched the hot taps on but then after running them for 5 minutes the water...

There are various pipes that are hot - which one should I be concerned with? See attached photos below. Also is the nrv part of the shower fitting? or is it part of the plumbing for the boiler? Best Mark

Mc

Thanks Picasso I'll do that. One thing I'd say is that the thermostatic mixer shower I have has a main cartridge and two separate pistons (a hot one and cold one). I've just replaced the hot one and the main cartridge as I thought that these were the problem. When you say cold could be...

Hi I've a Worcester Greenflow 440 combi that was in the house I live in before we moved in (so by my reckoning could be 7 to 10 years old). We've just had it serviced under a annual contract from British Gas and there were no problems reported. The problem I have is that the water from the...

I've a Worcester greenstar highflow 440 combi boiler approx 7 years old. The hot water temp from the tap is scalding and reducing the boiler dial makes no difference at all to the water temp. The Boiler is covered by a BG annual service plan. Any ideas what may be causing this issue and is it...