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Baxi help
Sept 23, 2020 9:50:47 GMT
via mobile
Post by jime17 on Sept 23, 2020 9:50:47 GMT
Hi all hoping you might be able to assist...
My baxi 105e is heating Ch flow when hot water is running. I'm suspecting diverter valve is sticking half way. I've bought the refurb kit and want to change diaphragms and shuttle valves (think that's the right name?)
As it's 20 in years old I'm a bit concerned that when I reconnect it all it might leak.
I believe I have to.
1. Drain primary circuit
2. Undo dhw flow Union
3. Undo sense pipes from valve
4. Undo Ch flow.
5. Undo pipe from main heat exchnger
6. Unclip bypass pipe from back.
That's a lot of connections that I'm worried about leaking afterwards given the age of the boiler.
Can any of you experts tell me if I'm following the right path here and are there any tips to avoid it all going belly up when I reconnect it all.
Cheers folks.
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Post by crowsfoot on Sept 23, 2020 12:05:35 GMT
Tom recently had the same problem jime and it turned out that it was just the start of even bigger boiler problems.
It's under the title of "bad day at plumb towers".
Makes for good reading with a surprise ending!
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Baxi help
Sept 23, 2020 13:09:40 GMT
via mobile
Post by jime17 on Sept 23, 2020 13:09:40 GMT
Oh dear. Hope it doesn't signal the start of bigger problems....
I saw Tom's YouTube vid about faulting the PCB. Didn't realise that was associated with earlier problems.
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Post by tomplum on Sept 23, 2020 13:40:49 GMT
Its one of those things, with hindsight, I would have bought a new boiler then but, like you, I wanted the cheapest way out and for me, it went tits up, But don't get negative jime, try the service kit and take it from there but bear in mind a 20 year old baxi has done well, don't expect many more years from it, I did this video of it, its a bit long winded but hopefully will help you, feel free to come back and ask all you need,
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Baxi help
Sept 23, 2020 14:29:37 GMT
via mobile
Post by jime17 on Sept 23, 2020 14:29:37 GMT
Thanks Tom. That's my nights entertainment planned 😄. I'll give the vid a good dose of looking at and see what I think I should do. Maybe I should have tackled it when the weather was nice in case I can't get it running again. ,😳
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Baxi help
Sept 23, 2020 20:29:21 GMT
via mobile
Post by jime17 on Sept 23, 2020 20:29:21 GMT
Blimey. That was a battle with the nut and the push fit unions.
That's exactly the job need to do. Won't take the side off though as I don't want to interfere with the combustion chamber.
Was it the heat that got that nut cracked in the end Tom? I couldn't quite see in the video.
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Post by tomplum on Sept 23, 2020 21:18:16 GMT
yes the heat did it, once i got all the water out, the water was taking the heat away, So when the water has gone the heat can do its magic, its a struggling job jime and that was the purpose of the video, to show some jobs are not as easy as you think they maybe, getting your hands in, is always a bugger on boilers, most of the time you are working in brail because you cannot see what you are doing, you are relying on ' feel' because its important to know when a push fit has gone home, Please don't let me put you off because a job like that is not for the faint hearted but, when you do it and make it work, you will get a BUZZ, you have conquered a new level and entered the land of achievement, Its like a drug, you will want more, a bigger challenge, the code word is,,,, never give in, Britain's never surrender we won 2 world wars and a boiler is small fry, go to it jime, and come back and boast about it, I will sent you some tomplum pens, they are more sought after than blue peter badges,  |
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Post by jime17 on Feb 19, 2021 18:14:55 GMT
Update.... Hi folks.
The pump packed up so while I had it all drained to change that I thought I'd refurb the diverter valve while I was at it.
Good job it's been a bit milder up here last few days.
Anyway removed the valve dismantled it and replaced all the diaphragms bobbins and o rings.
Was concerned that I'd have the same problem undoing unions that Tom had but it was fine.
All back together and running now. Fingers crossed out stays that way and we get a bit longer out off the old thing.
Thanks for the video Tom. It helped me no end.
Cheers guys.
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Post by tomplum on Feb 19, 2021 20:48:22 GMT
thanks for the feedback jime, I hope it works out and I'm glad the brewcabin helped you out,, keep popping in, masks and gloves are not mandatory |
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Baxi help
Feb 19, 2021 21:00:35 GMT
via mobile
Post by jime17 on Feb 19, 2021 21:00:35 GMT
Will do. Took me a while as I didn't want to bust it beyond repair in the middle of winter but the pump failing forced my hand.
Thanks again for your help folks.
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Post by cameron999 on Feb 19, 2021 21:27:51 GMT
wait so it sounds like you bought the full brass block?
we look after hundreds of baxi 105s and do so many diverter cartridges. We have the service kits and you can change the diverter cartridge, both diaphragms, push rods.. etc all in situ
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Post by dickpuller on Feb 20, 2021 7:26:29 GMT
Great boiler in its day, but get it on the grass & replace it with a Main ECO compact!! Cracking wee boiler, made by Baxi & full of quality features/ components. Full condensing & stick in some Open Therm Controls, it’ll save you £100’s on your gas bill.
A 20 year old Combi is fucked, you’ll be constantly repairing it & with you being a DIYDafty you’ll not be able to touch the combustion chamber or any gas parts..........Repairing it, fool & his money is soon parted!!!!
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Post by tomplum on Feb 20, 2021 9:24:02 GMT
indeed, thats what I did threw good money at a 15 year old boiler and eventually I had to get a new one, I can confirm the mains 25 is exellent value I paid £575 inc Flue, a little bit of pipe work and half a days work, (no flue gas analizer bullshit) and I'm hoping for another 15 years trouble free hot water and heating, I don't bother with services by the way, In my opinion the sqeaky wheel gets oiled, its a very true saying, So if it aint broke, don't don't go messing with it, |
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Post by jime17 on Feb 20, 2021 10:17:41 GMT
wait so it sounds like you bought the full brass block? we look after hundreds of baxi 105s and do so many diverter cartridges. We have the service kits and you can change the diverter cartridge, both diaphragms, push rods.. etc all in situ Hi Cameron. No I bought a service kit for £18 and a reconditioned pump for £25. You can't change all the shuttles without removing the brass block as you need to remove the bypass valve to get to one of them. I agree you can change the rest in situ. I agree dickpuller that it's in its twilight years but the way i look at it is £43 and a few hours of my time bought me some time to make a considered decision rather than get the first person in who says they can do it quickly because it's February, the kids are cold and the wife is boiling kettles to fill the bath. The 30kw main eco looks reasonable money dick. Is there much difference between that and the baxi duotec as that looks quite a bit cheaper. |
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Post by woodbine66 on Feb 20, 2021 13:28:30 GMT
indeed, thats what I did threw good money at a 15 year old boiler and eventually I had to get a new one, I can confirm the mains 25 is exellent value I paid £575 inc Flue, a little bit of pipe work and half a days work, (no flue gas analizer bullshit) and I'm hoping for another 15 years trouble free hot water and heating, I don't bother with services by the way, In my opinion the sqeaky wheel gets oiled, its a very true saying, So if it aint broke, don't don't go messing with it, 
Very true, Tom. My 17 year old Turbomax Plus hasn't had a service for a few years now. It's going great so I don't want to tempt fate. Have replaced the diverter, pump and changed over to external expansion vessel in last few years and it just keeps going. Hope to get a few years out of it. Parts are available and cheap. Even if it wanted a new main hex they're only just over £100 and easy fit. I can't really see any items on it that would fail and make me renew the boiler. Suppose if several components failed at same time it would force my hand. Got to be one of the simplest and best made boilers. Different kettle of fish to the Sine that was there before it. Jeez that was complex!
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