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I think maybe I have misunderstood the purpose of this forum and my expectations are unrealistic. I certainly did not start out as combative - not to anyone on here. The ad hominem attacks were not conciliatory. I tried asking a paid professional for help and look how that ended up. The unpaid...

How about reading what I put in the OP? Did I ask for a diagnosis of my boiler? No. The specific question I asked was about the plumber and his approach. The clue is in the title of the post. So far I have been told: I am expecting a free diagnosis I have a bad attitude Even posting on here...

If my attitude is offensive because I am disappointed with being conned then I think it is your expectations of what makes a good customer that may need need recalibrating. He didn't even kick the tyres, charged me for the priviledge of seeing his face and then told me I needed to replace the...

And to take you analogy one step further, it would be like someone arriving at this diagnosis without first lifting the bonnet. Funnily enough I found a service kit online for the boiler in question and all it contains is some gaskets, a sparking electrode and a flame detector. Seems that a...

I would like very much for a plumber to service it. If a plumber arrives, pokes around for a few minutes and then pronounces the boiler as knackered without servicing it, then charges me £60 then I do feel narked. If again in the same breath he then announces that "they are doing a special on...

Well if you guys don't know, what chance have I got?

Evo HE C30

My boiler is giving an intermittent L/F code. This is to do with ignition, right? So the plumber came round, had a look and said the boiler is knackered because of "shedding" in the main heat exchanger. He said this would cause overheating, which would cause the boiler to lock out. The only...

Understand and thank you. Can I take from this that it cannot be for any other reason these symptoms are occurring, and focus my attention solely on the HEX?

If removing the HEX plate reveals that it is not blocked, and yet the problem persists, wouldn't it indicate the problem is elsewhere? If I took the HEX plate off and it was full of crap again I wouldn't have started the thread.

I cleaned it with spirit of salts. I gauged I was successful when it got all the crud out, and when I refitted it the boiler worked flawlessly for a glorious 24 hours. So I removed the HEX and checked and cleaned it again. Worked fine for a week then same problem. The second time of taking it...

Here is what I have tried : Clean secondary heat exchanger (twice) Replace overheat thermistor. Replace PCB. Bleed pump. Still the DHW oscillating between hot and cold. No errors on the panel. What else could I have missed? A new boiler will be an option in the new year but I just need...