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Hi Hugh Thanks for response Only work that has been done other than pump was to remove/replace 2 rads for decorating (these are furthest from boiler) and a Hall rad changed for new item. I agree with comment re combi. Doesn’t suit everyone. Cheers

Some people never sleep Thanks again There was a sticker on the boiler saying that there was inhibitor in it. When drained it was reasonably clear , slightly yellowish? As per a previous reply I decided to give it a clean and have now poured in some Fernox F3 and will leave it bubble for a few...

Hi Doggit The pump is currently set on the 2nd of the variable settings , which if I’m correct , is recommended on a Grundfos webpage. I’ve tried balancing , much as you suggest, at the moment I have 2 rads upstairs turned off and the others about one turn open on the lockshields. Downstairs...

Sorry should also have added I’ve been trying to balance the system with limited improvement Cheers

Thanks again Perhaps a chemical clean is next to be done. Couldn’t have picked a better time of year I’ll measure the rads to guesstimate load

Thanks for reply Should have said it has 12 rads none of them very big, and all have been there since the system was installed. Except for towel rail which was installed as an extra about 4 years ago System has been regularly serviced, flushed etc by previous owners. I’ve drained it again and...

Hi My sons house has. Potterton profile 60e boiler Total of 12 rads and 1 towel rail Upstairs rads heat ok It downstairs is poor I suspected pump issue as I could turn off all upstairs rads and open up downstairs and heating does improve but not great It seeems worse at far end of downstairs...

Sorry all, never did confirm problem The New diverter was faulty or rather the diaphragm section. The pin operates the micro switch had broken out of its plastic disc inside the diaphragm housing. Old diaphragm module fitted and no further problems All is good 5 months later

Hi Chaps many thanks for very quick responses. Im back in work this evening so i will check when i get home. i havent seen any obvious signs of leaks anywhere in bathroom or kitchen. No drips from ceilings etc. However i will shut off the cold feed and keep a watch on diverter rod. Cheers

Hi I had a complete diverter valve and diaphragm assembly changed a month ago, due to poor DHW at upstairs bathroom. At same time my plumber remover plate heat exchanger for cleaning. When it was removed he found some plastic debris and a spring located in the entry port of the DHW side of the...