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Hello again, Would like a little help with my boiler again. The boiler seems to have developed 2 problems in the last 24hrs although I suspect that they are linked. It is not firing up to produce HW and although in constant mode for CH it only fires up when it wants to and then shuts off...

I need to replace the hearth tiles of a Victorian fireplace as they have all cracked and many are missing. If I use tiles, are there specific tiles and adhesive that need to be used - thinking about the high temperature that will be generated in use. I was considering just using a piece of...

Hi, Many years ago the original fireback of a Victorian cast iron tiled insert fireplace was replaced by a clay type. The front part is still in place behind a marble surround. However, the clay fireback has badly cracked and started to breakdown and thus it needs replacing. I have a few...

nickso, Must say that I don't recall ever having a problem with keeping the system pressure or excessive pressure, but I have just read something on the issue and basically the manual states that if the pressure exceeds 2.5 bar when operating I need to re-pressure the EV. Now I know about...

Hi Nickso, Thank you for the advice. With regards to the EV, on my particular model it is situated within the room sealed chamber/part of the boiler, and to be honest this is an area which I didn't really want to get into unless I really had to, although I did undo the 4 retaining screws...

Yippee, I've got hot water. Everything went back together fairly easily, but there was a small drip between the 2 parts of the DV - after spliting the DV I found there wasn't a replacement O ring in the kit. So after getting a replacement all is fine with no leaks or drips. Just a point of...

Hi Tony, Thanks for the further advice. Not to sure about the cleaning fluids mentioned for cleaning the HE, so going to leave it, prior to my problems the other aspects of the boiler seemed to be working OK so having going to assume everything else is also OK. Was going to give the...

Hi again, Got the DVA out and the diaphragm was completely sha**ed. It was practically falling to bits, totally water logged and split nearly half was round. Not at all surprised I wasn't getting HW!!!!! Anyhow, I hope the replacement sorts out my problems and there are no other issues to...

Hello again Tony & Nickso Thanks again for the help. Almost got the DVA out - there is only a small retaining screw to free and it sohuld come out but it is solid so waiting for the penetrating oil to do it's stuff. Tony, was wondering if the is anything else other than just rinsing the...

Hi all, Thanks again for all the advice. Can understand looking at the problem I have from a commerical point of view and thus can see why my plumber stated that the whole unit need changing. As a DIY'er, fortunately I do have the time to devote to just changing the diaphragm (and I...

Hi Dave, Thanks for the reply. FS is working, unclipped it with the HW tap open and the boiler fired up straightaway and when I pressed the button in it switched off. Now to get a diaphram kit. Would you recommend doing anything else whilst I have the boiler open and the DVA out...

Hi nickso & Dave, Thanks for the advice. Was gonna ask if the DV is serviceable, seems that at least part of it is. Was wondering how I would check to see if the Flow Switch is operating? Jules

Hi Tony, Thank you for the reply and appreciate your offer to help and advice. I have been looking at some of the other posts for the CB28X and have noted various other comments as well. Some of the comments refered to the DHW flow switch and have found that if I I hold it up under...

Hi All, Looking for some help and guidance. I've have this boiler for a number of years, about 5, and all's been fine until recently, when I started to have problems on DHW side of the boiler. Noticed that I was not getting HW at one of the taps (1st floor about 20ft away from boiler)...

Hi Plugwash Thanks for the reply. The kitchen is basically complete all bar the fiddly bits, so if it's the underfloor heating I may have some problems ahead! Are you able to give me an idea of why you think there may be a problem with the underfloor heating? Prior to tiling I test...

Hi, I'd like some advice please and my apologies for teaching anyone how to suck eggs or giving to much info or for waffling on far too much! I'm Part way thru a complete rewire, including new consumer unit (CU) of my house and have encountered a problem. The CU is a 16 way MCB split load...