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Worcester Boiler case issues

neilmcl
Posts: 19,460 Forumite


I had a service booked this morning for my Greenstar CDI combi with a guy I hadn't used before and on removing the outer case he mentioned that there was some heat damage on the black foam insulation on the inside of the case, in fact some of it has now started to crack. It's more where the electrodes for the heat exchanger rest up against the inside of the case. He said he couldn't complete the service until this was rectified and in theory he could fail the boiler as the insulation is part of the combustion seal but he'd leave it for now and source the correct parts and come back another day.
My question is this, I've looked on various parts suppliers for WB boilers, incl, the official WB one, but can't find a part for just the foam insulation, even though the plumber said he should be able to to get this, and I'm a bit worried that I may have to stump up for a complete new outer case, which is over £200. In fact I could be looking at stumping up nearer £400 when he includes other parts he wants to install, and that's before even doing the service. Any thoughts?
My question is this, I've looked on various parts suppliers for WB boilers, incl, the official WB one, but can't find a part for just the foam insulation, even though the plumber said he should be able to to get this, and I'm a bit worried that I may have to stump up for a complete new outer case, which is over £200. In fact I could be looking at stumping up nearer £400 when he includes other parts he wants to install, and that's before even doing the service. Any thoughts?
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Comments
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Ask W-B.Unless a GS on here knows?0
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This is what it looks like.
The bit in the middle is worn away from where the Worcester Bosch badge has been fitted and the bit on the side is where the two electrodes go into the heat exchanger. Surely there's a safe repair for this rather than having to replace the whole thing, plus it would be a right pita having to remove it and fix a new piece of whatever material it is, as it's all glued down.0 -
If it's worn away where the badge is that would suggest incorrect fitting at some stage as I wouldn't expect components to rub against each other.
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How old is the boiler, Neil?I suspect it's simply down to age exacerbated by the warmth. I recall the insides of my GlowWorm had a thinner and softer foam layer than on yours, and this too was showing signs of 'perishing'. Mind you, my boiler's at least 16 years old.0
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Jeepers_Creepers said:How old is the boiler, Neil?I suspect it's simply down to age exacerbated by the warmth. I recall the insides of my GlowWorm had a thinner and softer foam layer than on yours, and this too was showing signs of 'perishing'. Mind you, my boiler's at least 16 years old.1
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Seriously - send W-B a photo and ask them if it's an issue of concern. Don't tell them it's been practically 'condemned'. Just, "Is this a concern? Does it require replacing?"If it is, then ask if the foam is available on its own.Pre-armed.1
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Jeepers_Creepers said:Seriously - send W-B a photo and ask them if it's an issue of concern.If it is, then ask if the foam is available on its own.Pre-armed.2
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Is it something that could be made up from (neoprene?) sheet or has it got more complex details?0
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coffeehound said:Is it something that could be made up from (neoprene?) sheet or has it got more complex details?
I probably should've stuck with my usual service chap, it's probably been like that for years and he's never raised it as an issue 😀1 -
neilmcl said:coffeehound said:Is it something that could be made up from (neoprene?) sheet or has it got more complex details?
I probably should've stuck with my usual service chap, it's probably been like that for years and he's never raised it as an issue 😀It won't be the actual seal to the combustion chamber where the flame is, but will be a secondary seal for the main boiler area which contains the CC, and fan and sparks and gas valve and flue inlet.As I understand it, the 'inlet' part of the flue goes to this chamber. The fan blows air from this chamber into the CC, and is therefore sucking the air from outside via this chamber. This chamber is therefore at a slight negative pressure - should that seal fail, the worst that should happen is it draws some air from your room as well.I think.
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