Recent content by trelo

Sorry. Havn't been back to see answers because my email client not posting replys! I have been offered a new boiler and was wondering if it would be a suitable replacement for this one. Its a Remeha combi 39c here is the spec on it...

Hi My radiators are noticeably not as hot as they were. I observed the boiler for about 5 or 10 minutes whilst holding the flow and return pipes. The burner fires up and the flow pipe would get hot as expected and then the burner would cut out completely after maybe a minute or 2...(not...

//www.diynot.com/forums/viewtopic.php?t=217549&start=75 as per the link above i just got in an engineer and he reckons its the primary heat exchanger? is this a plausible cause? he says its kettling. I started this thread because i believe i must have left a long pause between posts...

hi.. i'm back!.. still been living with the same problem and when i finally got and engineer to look at it he reckoned it was the primary heat exchanger? he said it was kettling? he hasnt been back yet but wondering if this could be a plausible cause?

I'm thinking of changing my Vaillant VCW GB 242 EH Boiler. Its over 25yrs old. I'll be sad to see it go cos it's been a cracker of a boiler! I've got to know this boiler very well. I was looking around on this forum and various other places and much is said about the Remeha. It sounds like a...

Haven't been back for a while but thought I'd update on my boiler. I finally decided to get a competent engineer to have al look at it tomorrow. The problem is still there as per my last post back in March. Not sure what he's gona find... i'll let you know and hopefully this will end months of...

Hi all, this post has been copied from another one of my posts. I was concerned that that thread was over 4 years old and might not get picked up My friend asked me to have a look at her boiler. Long story short: All functions seem to be working except the crucial bit.... actually...

Hi all, My friend asked me to have a look at her boiler. Long story short: All functions seem to be working except the crucial bit.... actually firing up! I personally have a Vaillant VCW GB 242 EH Boiler so felt quite confident about finding a possible solution. (just about changed...

Hi and thanks but what's one shot?

I powerflushed my system 3 months ago...neutralised water and then used good inhibitor...then i replaced plate heat exchanger... Guess what? Its clogging up already! so my question is... a) get a boiler buddy or b)keep removing and cleaning/replacing heat exchanger? or c) get a complete new...

Sorry I haven't been back quick enough... I've not managed to get time to go try NTC disconnection yet... We are managing to get reasonable hot water by turning down the overall flow at the mains for now...but it's ridiculously low now. Apart from Checking the NTC, temperature check and the...

Thanks again... Where is the NTC sensor?... diagrams i use online not showing where it is. I thought i'd do this first before cleaning the Y section. What do you think is going on with the dim green light then?

I haven't greased the pin because it was moving freely in its sleeve before the new water valve went in - didn't see the need to. It was the water valve itself that was jammed solid. Servo, switches and cam movement all seem fine when CH or DHW is asked. Diverter is extending and retracting...

Tony... I'm not happy to call vaillant at all! I actually like doing this stuff... I've answered most questions you and the others have asked. I had already changed the HEX way before finding this forum because the HEX was always the culprit for this problem in the past. I came here to ask...

Andy... you absolutely read my mind about the Y shaped tube to the left of the combustion chamber. I looked at that and thought 'I wonder if your blocked?' I got put off the idea though because that flow pipe gets hot when in CH mode(obviously not in the chamber, at the HEX :shock: )...now is...