Worcester 24cdi dhw fault

[Bubblenskweak]

Hi. can anyone help me with this problem:
When hot water is on demand the burner stays at the same rate as when on heating, and doesn't come on at a higher burn rate as it should do.
Anyone know the cause of this ?
Regards...Bubblenskweak

 

[HuwG]

This involves proper diagnosis. I am new to this forum, and would not like to advise on something you may or may not understand. Im sorry.
Huw.

 

[adlplumbing]

goto faq and gas rate it and see what you come up with

 

[Bubblenskweak]

Followed Worcesters fault diagnoses flow chart, and this said I needed a new PCB. Got one fitted it, when I powered it up it made the gas valve buzz, before burning out one of the components on the board. I rang Worcesters tech dept, who said it must be a faulty board. So I bought another board, fitted it. Boiler ran well, central heating fired up then when I turned on the hot water, after a few seconds smoke and crackling from the board. Now it's back to normal, just warm water & heating working. Back where I started but with 2 Knackered PCBs and a hole in my wallet. Does any body know what's up with this bleedin' boiler, before I top myself......



I'm not really goin' to top myself

 

[Agile]

This is a typical example of a DIY attempt when you dont have the expertise to diagnose the real fault.

Obviously it would have been cheaper to call a professional!

Without doing tests on the boiler I dont know what your problem is. Thats why I have to go to boilers to fix them. I cannot do it from my armchair.

Tony

 

[Bubblenskweak]

Top Tip Tony, Thanks so much for your help.
I thought this was a help site, not a boost yer bleedin ego site.
Thanks again Tony.

 

[churchilldog]

Top Tip Tony, Thanks so much for your help.
I thought this was a help site, not a boost yer bleedin ego site.
Thanks again Tony.

Tony regularly takes on the role of an armchair engineer.

 

[Agile]

On the 2nd Jan, adlplumbing ( also in Lancs, new to the trade but he still might have been able to come to you and at least if he had trashed any PCBs then it would have been at his cost and not yours! ) asked you to do a simple test which would have given us a start at deciding what might be wrong.

Unfortunately, you did not follow his advice and instead started your financially downward spiral.

To diagnose boiler faults you dont just change components on the offchance but instead use logic to decide what tests need to be carried out to help to identify the problem.

Even if you cannot perform the logic then its still possible to start by doing standard tests just as I teach any of my trainees to do at first.

Tony

 

[Bubblenskweak]

Tony, I did follow his advice, and did the test. I also followed Worcesters Advice and tested resistance between terminals 1 and 2 on the board connector. Which was 37 ohms, below the recommended 60 ohms. Worcester told me to change the pcb. I did, they didn't know why this didn't work. Hence, I thought I would try the forum. If you can't offer any help, **** off and stop all this sanctimonious crap, and let someone else help me. I am a professional with 32 years experience in the building trade. Not a bleedin numpty......



Ps what's all this "Logic" *******s. You think yer Mr Spock or Something !

 

[Paul Barker]

Well in my experience the person stood in front of the boiler has to have better experience and knowledge than most people realise even to give manufacturers helplines the information they need (or to prize out of them the information you need) such that the fault will be correctly identified.

I have the same with a mate of mine keeps ringing me and saying "I rang (insert any manufacturer you like) and they said 'change pcb'" They and he are always wrong.

What Tony was trying to say, is something I often say. It's not because I am an armchair expert. It is becaue I know that like in the game of cherades fixing something for someone over the phone (or worse still a forum where you can't guide them and get a response in real time) the information is distorted in between. Every person who gives an account of a simple event will tell it differently to every other.

So don't go hard on Tony.

And anyway he doesn't ever intend to come over the way you have portrayed him, even though he does appear that way to people who don't know him.

 

[Paul Barker]

Top Tip Tony, Thanks so much for your help.
I thought this was a help site, not a boost yer bleedin ego site.
Thanks again Tony.

Tony regularly takes on the role of an armchair engineer.

Well durr, that's what we all do when answering questions here. We would rather be paid to go out and fix their boilers thank you very much.

The diy people don't know how much they owe people like Tony for giving their assistance for free from their armchair.

Even though I did find the op's comments hilarious I have to stand up for the experts here who do give very good advice, which is often ignored or no feedback given and then they jump in with a spontaneous response without saying what has happened in between.

And then they bite the hand that feeds them.

Although this op has done it in good humour and we have all spilled our coffee reading it.

 

[fatplumber]

I am a professional with 32 years experience in the building trade. Not a bleedin numpty......

OOh me too, 1964 I started running up and down ladders and this self righteous electrician won't tell me how to wire up a particle accelerator! Go figure, I hardly ever kill anybody! Well not for a few weeks anyway and I told that old dear to turn the mains off before getting in the bath. Now let me see, the big one with the yellow dot, that must be earth or is it the red one?

 

[ChrisR]

what's all this "Logic" ****.

All this "Logic" **** is like, what you have to use with tools and everthing an all sorts, man. Like, pointy things you poke in, got numbers and ****? Well complicated and tricky sort of stuff. Bloody_thing can go fizz and bang and everything an all that. Isn't it.

I am a professional with 32 years experience in the building trade. Not a bleedin numpty......

Serious man, Diss you. Just cos you can like, pile bricks and ****, that ain't squat.
You would have thought, isn't it, like, that somewhere in that like LIFETIME for some African with malaria, and issues, you would have learned not measure boards, like put volts where volts didn't ought to be an everything. That's bone, like really lame and everything and all that? Isn't it?
That Tony, his **** is BAD, Like the geezer you rang. They got years in an everything, and you're dissing them up, bro. They should sue and everything and get compensation. So when , and this is like them to you, "Like measure the ohms and that in the gas valve, from the pcb connector" and you do it when its still connected and change the wrong bit and stuff, that's like, out of order?
You Special Needs?
Isn't it?
Random.

 

[Agile]

Tony, I did follow his advice, and did the test.

If you can't offer any help, p**s off and stop all this sanctimonious crap, and let someone else help me.

I am a professional with 32 years experience in the building trade. Not a bleedin numpty......

You may have done the test that Adlplumbing suggested but you did not tell us the result so that we could try to help you.

You evidently thought your 32 years as a builder gave you a better chance of fixing your boiler than those who do it for their living!

That may explain why I find builders reluctant to call an engineer and when their bodge does not work the householder has to call me!

You ought to watch some of those TV programs where builders have totally messed up simple jobs and it all has to be taken down and rebuilt !

Tony



PS That abusive language you posted is typical of the perception of how builders speak !

 

[Bubblenskweak]

I'm not a builder, never said I was. I'm an electrician. I'll say again, you can help, or you can't. If you can't, don't bother posting comments that wind people up. Life's too short to be bothered by smart arsed people who state the bleedin obvious.......

Oh, I've asked an engineer to come and sort it on Mon...
Thanks for all your useful comments, they really helped.
I'll not be bothering you again....

Unbelievable !