"Step-By-Step" Vaillant Diverter Valve Repair.

[@RailsandSky]

I have praised you before. You are incredible. I just wish that all gas engineers would be as efficient and knowledgeable as you.

[@HeatingGeek]

Thanks :-) I Just trued to get better at my job so I got home early. :-)

[@jasonowen6646]

As a engineer doing mostly installs and now venturing into repairs, your videos are a breath of fresh. air. I really appreciate you posting them for us to learn from 👍

[@HeatingGeek]

Thanks for watching them and taking the time to comment. I work with a few "new to industry" guys and an x installer or 2. It's hard to switch between the 2 sides of the trade without some guidance. :-)

[@owencoussins]

Much a appreciated for taking the time to share your knowledge....he's a lucky boy to have a dad like you...I would of like my dad to of shown me👍

[@HeatingGeek]

I appreciate your comment. I hope he appreciates it when he's older.

[@alunt2003]

Nice video. I enjoy watching people do my job 👍 Minor point though: CO2 is good for the atmosphere; it's basically plant food. Which is why Dutch farmers pump it into their greenhouses 🤘

[@HeatingGeek]

Yes, Very good for plants. The local greenhouses use oil and gas boilers to heat and some even use the POC to add Co2

[@tommykiely5631]

I hope your son knows he is very lucky to have you as an old man to gather that knowledge and experience 😂🙏🏼

[@HeatingGeek]

Nah, Im just his annoying, embarrassing dad. How it should be ;-)

[@UKVitamins]

Ive got the same boiler. 2008, just had the second diverter changed in that time. Nothing else has gone wrong with it. Ive done a sec HE clean with spirit of salts 2 times now. I was thinking it might need changing, but the DV has sorted it out so all ok again. 17 yo April 2025

[@HeatingGeek]

Like mine, if you put them in right and notice small issues before they become big, the boiler will last and last. :-)

[@sajmahmood9926]

I'm glad you're back making repair videos, used to follow you years ago before you stopped posting, so really good to see you back with more breakdown vids. Best repair engineer out there by far in my opinion and excellent manner of explaining things, quality of vids etc. Please keep posting mate.

[@HeatingGeek]

I'll try my best. I have ups and downs that make it hard to get editing done. This and the last video were cut and shut and I have second angles of both that I couldn't be bothered to edit in. I am off work today so will get another couple done hopefully. Thanks for watching and commenting, I appreciate it. :-)

[@colinjackson320]

Your son has an excellent teacher. My lad will be one in a weeks time, I can't wait until he can help me.

[@HeatingGeek]

He got a 2 hour detention at school so this was his punishment. :-)

[@paulrossiter9567]

Your son is the next gen of expertise 🎉 👏🏻👏🏻✊🏻

[@johnclarke6542]

Your spot on fix things, don't make more for the sake of it, great video

[@HeatingGeek]

Get stuck in and get it done. 99% of the time it gets it done :-)

[@chrisrixon1364]

you're great at explaining what you are doing , keeps me learning , thanks.

[@HeatingGeek]

No Problem. :-) Are you new to the industry?

[@chrisrixon1364]

been plumbing for at least 13 years but boiler repair is my weak point@@HeatingGeek

[@HeatingGeek]

Unless you get stuck in its hard to learn. And while you're learning you don't want to jump in.:-) Been there too.

[@normanboyes4983]

Enjoyed that Ollie, good to see your lad is interested in getting hands on.👍

[@HeatingGeek]

He got 2 hour detention at school. This was his punishment. He likes it. :-)

[@robkiss5272]

Great video, loved the rant and totally agree. Also good on you for teaching your son, nice one mate 👌 👍

[@HeatingGeek]

Thanks :-) I wasn't in the best mood. Not well and having to fix my boiler :-(

[@ryandow3954]

Great video mate, you did not look a happy chappy.....and i wouldn't be either if i was woken up from a long lie to fix my own boiler 😢 the condition of your boiler considering how long it hasn't been touched for just shows how decent a Vaillant really is! It was great to see you teaching your son too 😊

[@HeatingGeek]

Their were a lot of laughs as he got stuck with the heat engine caught on wires... I like teaching my kids skills that school never will.

[@CarlAtkinson-zu1zh]

Brilliant video mate, you always make things look very easy, thanks for the advice 👍

[@HeatingGeek]

To be honest, it was easy. The worst bit was my mood. :-)

[@CarlAtkinson-zu1zh]

@@HeatingGeek there are days when I just feel like telling everyone to fu3k off but probably not a good idea 😂

[@HeatingGeek]

Yeah, it doesn't usually help. :-)

[@jamescarter1088]

Your bang on right. Fix things not manufacture new things. Don't get me started on net zero. I know you know, so nothing needs to be said👍🏻

[@HeatingGeek]

I was in such a shit&y mood that day. :-) Heat pumps won't save shit.

[@jamescarter1088]

@@HeatingGeek Trouble is, our government don't have have any power, just a mouthpiece to those who do. Always cap in hand to borrow more money 😩

[@HeatingGeek]

@@jamescarter1088 As soon as you learn how the monetary system works you give up all hope. I don't even watch the news anymore.

[@ginola602]

Another brilliant video,thanks for sharing.

[@HeatingGeek]

Glad you enjoyed it. Thanks for watching ~:-)

[@HeatingGeek]

And commenting :-)

[@jasonantigua6825]

Thanks for the upload mate! Another quality t job 😊

[@HeatingGeek]

Thanks :-) I wasn't in the best mood.

[@jasonantigua6825]

@@HeatingGeek We all need to have a rant now and then! And it was well and truly justified mate!

[@HeatingGeek]

Thanks :-) Did you like the onesie.....

[@jasonantigua6825]

@@HeatingGeek Yes mate! Haha

[@HeatingGeek]

It's already gone. too hot.

[@charliefox6987]

I had to double take when I see the slippers . Thought u had turned up to someone for a call out in a dressing gown 😂😂

[@HeatingGeek]

We all do charity work :-)

[@MagicDoughnut]

YOU HAVE TO BE KIDDING ME!!! Where was this video when I needed it last week Friday evening? Took the old diverter out and water started spewing out because the vessel was flat and full of water. Got the PCB wet, water everywhere on the floor. EV is the first thing I check from now on. It's so weird seeing this video 2 days after it happened.

[@HeatingGeek]

And this video was filmed in January I think... I flipped a coin on which video to put out last week and the expansion vessel video won because it needed less editing. :-) I do always, always pump a vessel if I drain a boiler. Saves a lot of PCBs.

[@keithbrueton]

Fantastic Ollie

[@HeatingGeek]

Glad you enjoyed it. I didn't :-)

[@ME-hc1fk]

Great to see a real world engineer under pressure and showing this industry is not an easy one. Unfortunately that’s why I replace the whole diverter valve. ( (£160 )

[@HeatingGeek]

It was an easy job, just on the wrong day :-)

[@ME-hc1fk]

Yes I agree. I was a commercial / industrial engineer for 30 years so know how days can go wrong 😢

[@HeatingGeek]

But its still fun :-)

[@ME-hc1fk]

Fun is not a word I’d use my friend. Taxing, Yes.

[@ME-hc1fk]

😅

[@Ex3t3r]

Ollie can you give us a link for the diverter kit please?

[@HeatingGeek]

I will ask if they do a discount code. Maybe we can get it cheaper.. I'll call them today. :-)

[@MrCarhoo]

Thanks again learning loads

[@HeatingGeek]

Very welcome. Thanks for watching :-)

[@Mattj361]

You can get some pliers not sure on what they are actually called that will snap the two tabs on the insert and then just pull it straight out. Great idea with putting a gland on end as that is point of failure.

[@HeatingGeek]

I have a set. I got them from BG and I have seen them on amazon and eBay. I don't know what other use there would be for them. Have you got a set?

[@Mattj361]

@HeatingGeek yes I have a set. Like you say only use I've ever found is doing a cartridge on the vaillant

[@HeatingGeek]

Yeah, a custom tool for 1 job. crazy

[@Mattj361]

@HeatingGeek not sure if mechanics use them for some hose clamps. Might be handy for the clamps on the duo tec condensate hose, they can sometimes be tricky.

[@HeatingGeek]

Finger fuck£$s I call them. Always hurt my fingers removing them

[@marcobrian1619]

IV a 20yr old baxie........Tobe honest it does need a expansion vessel...... IV replaced ex fan and repaired the pcb board "only a relay replacement" It's a simple but fantastic unit. I'm no gas engineer....... I totally agree with you..... repair and replace only Parts needed.....not do everything if not nessasery

[@HeatingGeek]

What boiler is it?

[@marcobrian1619]

@@HeatingGeek baxi 105 he.. I'm no gas engineer...IV know how it works ect. You would know the easy way to exchange it..... Me it's at back and boxed in......

[@HeatingGeek]

Fit a remote on and forget about the one on the back. :-)

[@marcobrian1619]

@@HeatingGeek thank you for advise....I'll look into getting it sorted in summer.

[@mohmmadmohseni8404]

Perfect 👍

[@HeatingGeek]

Thank you! Cheers!

[@27forme2]

Hey the kit you put a link to is the tyre repair kit😂

[@HeatingGeek]

There should be a few links. What were you after?

[@27forme2]

The repair kit you used for the boiler

[@HeatingGeek]

@@27forme2 www.buycombi.com/

[@melvinevans9981]

Olie, how did you leave ya boiler for so long, dude? Haha The moss looks like my neighbours' roof. Nice video man

[@HeatingGeek]

If it fails I fix it? Then give it service. It loves me really. Do you service your boiler every year?

[@melvinevans9981]

@HeatingGeek u know I fucking dont. Mate, I'm too tired, bruv, but I'm thinking about it now. Haha 😄

[@HeatingGeek]

@@melvinevans9981 Do it when not fails :-)

[@jimmyclark8229]

Yeah a got them but still find it quicker to just break them

[@HeatingGeek]

I'll try that next time. It's been a while to be honest.

[@RestlessBs3]

Your a top man!

[@HeatingGeek]

Nah, just fixing my own stuff. :-)

[@colin4685]

Great video as always.

[@HeatingGeek]

Thanks man. I appreciate you taking the time to comment. :-) And watch of course.

[@jimmyclark8229]

How I remove the old diverter cartridge is with a slotted screwdriver break the 2 lugs that holds old cartridge in position then spray with WD40 then pull out with long nose pliers simple 2 mins not as you need the old part anyway

[@HeatingGeek]

I have the snap type pliers that BG gave their engineers :-) I should try them too.

[@MrLibbyloulou]

3.42....i see you washed your mascara off, musta got water from some where.....:-)

[@HeatingGeek]

I put a bucket under it. :-) Vaillant keep going :-)

[@joeyoung177]

Dude I think you are a pukka engineer but that bit of kit makes replacing diverter cartridges so long winded, you’d be so much better off using the long nosed pliers with the 2 lugs on so you can just pop the 2 on the cartridge dead easy and just pull out the cartridge with some long nose pliers and the jobs a gooden😊

[@HeatingGeek]

I have them too. BG gave them to me :-) If I'm honest I forgot I had them. Did you get yours from BG?

[@graememclaughlin720]

Fuel line pilers

[@HeatingGeek]

maybe. I'm not sure though.

[@TomPalacki]

Still waiting for pcb repair video ;)

[@HeatingGeek]

I know. I still need to film some of it. Sorry. I will put a bit of it out VERY SOON.

[@TomPalacki]

@@HeatingGeek great news👍

[@alanmurphy3584]

Can you be my Dad, I’m a bit older than you but we can work round that 🤣

[@orcalator]

Hi, can you please help me. I have a bit older model - TurboTec Plus VUW SOE 202/3-5. I have a problem for many years now, every winter when i turn on the heating. So, sometimes (not always) when thermostat turns on the heating, boiler starts with a rattling noise. Then, to stop it, i just open water in the sink for a second and that's it. I found this video on YT (kzbin.info/www/bejne/fmW1gaSQlMale9U) where guy says the problem is in diverter valve. What do you think, is this the problem or maybe something else (pump?). If the problem is diverter do i need to replace it completely or i can fix it? Thank you.

[@HeatingGeek]

Replace the diverter. I have a video about how the balls swell. Search under the Vaillant playlist and you should see a video where I cut one open.

[@orcalator]

@@HeatingGeek Thx. for the reply. Yeah, i was searching for the solution and many people say it's a diverter problem. I really don't know anything about boilers but as i'm learning i realized that diverter is used to "divert" water for heating or for hot tap water (depending on whether tap water is open or not). I just don't understand why would valve make noise? I'd expect noise coming from the water pump or fan, not the valve, but it seems it's really the valve.

[@HeatingGeek]

The noise is probably the boiler overheating because the diverter isn't moving across properly. So it stops water flow and the boiler overheats. Check out the temperature on the boiler when it makes noise and when it stops. See if the temperature goes high when it's noisy.

[@orcalator]

@@HeatingGeek hm, i will check that, but this noise happens randomly when thermostat activates the boiler/heating. So, let's say the boiler is activated 20 times without any noise, but then one time it will activate with a humming/rattling noise. This noise will stop only if you open a tap or wait until the thermostat turns off the boiler.

[@HeatingGeek]

@@orcalator Maybe your TRVs (if you have them) are all closing down after long running times and causing low water circulation through the boiler. Try and turn 1 TRV fully on when it's making the noise and see if it stops. :-)

[@drewukdrew]

I thought, that's a good neat pipework job, then thought WTF are you wearing slippers 🙂

[@HeatingGeek]

:-) Yep. Old man slippers apparently :-)

[@treborgray]

No coffee no get up.

[@HeatingGeek]

Exactly. Especially when I'm not well. Absolutely ruined my day and mood :-)

[@thepm3972]

You must be sweating wearing that to bed bud...😅

[@HeatingGeek]

:-) It's already in the bin. WAY too hot :-)

[@mynameis9739]

First ❤❤

[@HeatingGeek]

Were you? I don't know how to check but you could of been. :-)

[@ArifPolicewala]

Man Ollie . You look n sound pis**d❤. Not a nice thing to be woken up to . Hope the day got better 😂. Onwards n upwards.

[@HeatingGeek]

Yeah, it was a tough day. I lost the oil job footage and didn't want to (couldn't be arsed) find some other job. I was pissed. :-)

[@SuperWayneyb]

🤘😎🤘🫖☕️

[@HeatingGeek]

Thanks Wayne. :-)

[@trick17und4]

WHO the Heck Installs a heatpump with 10mm copper? How is that even working … most heat pumps need bigger sizes due to the high flow rates .. I don’t know any heatpump where the flow and return connected form outside to the inside unit less than 35mm it’s just not going to run efficiently

[@HeatingGeek]

New build houses in the UK need to be heat pump ready.... But the heating systems are still put in in 10mm plastic pipe! I was ranting about that ;-) Do you do heat pump install?

[@trick17und4]

@@HeatingGeek hi Oli, thanks für the answer. Yes I do a lot of heat pump installs but I can’t seem to understand why people would do it with 10mm. It just not gonna work. There are certain requirements for each brand but I never seen or heard about 10mm. Most heat pumps need certain flow rates like an unvented cylinder in order to work efficiently. If you don’t know who I am than you better write me privately again :) it’s me Ronny from Germany

[@HeatingGeek]

Hi Ronny, How come you have this crazy user name? @trick17und4

[@HeatingGeek]

Hope the wife and kids are ok. Bet you have a better life in Germany than East London. :-)

[@robertsmith3518]

Get a tripod … can’t watch when your all over the place ,Next

[@HeatingGeek]

Funny thing is I have all of it filmed from a tripod. The whole thing. I just couldn't sync the video together to cut from so fuck£$d the static off. Sorry. I do try but video production isn't my thing.... :-) I'm glad you commented though. I will spend more time trying in future.

[@YoutubeHero666]

@@HeatingGeek i like how its filmed as you can see the parts better and get a closer look tripod just be too far away to get a good view.

[@HeatingGeek]

I try to be better but jut don't have the time to get it done. @youtubebero666 do you ever post anything? It's a great name. :-)

[@YoutubeHero666]

@@HeatingGeek Hi, Maybe a should film a few repairs! but I know how much effort is involved with filming and editing them to make them watchable :) I'll probably leave it to you guys as you already do it so well.

[@HeatingGeek]

Mate I'm messy and slow with editing. I spent 6 hours today and didn't even get one video done. :-(

[@mohmmadmohseni8404]

Perfect 👍

[@HeatingGeek]

Thanks, Your slowly going through the videos ;-)