I have been doing breakdowns for 40 years and think your work ethic is excellent. Problems like this are always better when slepped on . Advise, dont ever give in. Well done.
I know your a good engineer when you take things like this personally, shows your emotionally invested as opposed to not caring , well done 👍 keep up the good content.
Well done HG great fault finding work. I know well that tormented feeling, when you go home having not resolved the issue. You nailed it on the next visit, and that feeling is sweet when you find the fault. Excellent video, I relate to it very much.
Absolutely well done mate. Been in the 25 long years now and I'm still learning. I too have a saying. "Nothing beats me". So well done again for sticking with. You've taught me something today. Lee
Great to see someone taking pride and care in you're work. If you're anything like me, when anything like that has got me hung up. It plays on my mind even when I should be taking time out/or I've resolved it.
Here I would like to have a big thanks for Oliver Glicrest who come to fix my boiler, the way Oliver Gilcrest changed pump is so clever and work so effecient, the previous enginner did not fix the problem properly and also damged the valve, Oliver spend some time identify the valve problem and also fix the part in the valve, all problem parts position are in a very difficulty position, Oliver tried so hard manage to fix them, Oliver has such high standard skill to understand the boiler system and high standard skill to fix them, the way he is working in such professional way very suprise me. Here I highly recommend him to every one who need engineer to fix their boiler. Well done Oliver.
Saw a vid from a Vaillant engineer that said Thermal fuse will often fail to F62 as it begins to fail before eventually going to F76 so worth checking before replacing board - although it will usually be the board.
I like stripping old boilers and putting them back together again, learning knowledge and skills is only hands on, can't just read and learn. You got a truck full of skills, passion, patience too. Like watching your stuff, would love to have 30% of your skills and boiler confidence on repairs. It's a mighty long road. Knowledge can't be bought its gotto be learnt. Cracking job/skills/ motivation 👍👍
Always on the look out for any old boiler, don't get many these days as I mainly service now, although the options of repairs/fault finding is on the horizon! Nothing ventured nothing gained...
I got 2 minutes into your video and was itching to tell....I have the same boiler with same problem F62 and F27...fixed 3 days ago. After 2 years and 3 fitters and hopelessly out of pocket, it was fixed thur. 16 apr 2020, 2 days ago. Turned out to be Pump ( motor) and a new filter was needed. BINGO, job sorted
What filter? The Pump could of caused the F27. Check out the "Vaillant pump hack" to see how the F27 can be intermittent and the pump ruled in or out using the boiler software. :-)
@@HeatingGeek mines the 2007 ecotech plus its been fantastic reliability wise changed three parts in all that time (1 was my fault long story lol) im interested in your videos as im sure its inevitable more things will fail eventually lol... is it just the larger vaillant combis that have the dip tube feature mate btw? Thanks
Great content HG, I've learnt a lot from your vids and no doubt will continue to. You're a solid engineer and you clearly put the effort into recording, editing and upload videos to help drive up standards in the industry. Stay safe and keep up the good work :)
Your dedication and perseverance is a credit to you ! After watching a few of your videos we are probably going to get your company to do a service on our boiler.
Time for a new boiler. My ecotec 831 gave me 10 years trouble free service but now I’ve swapped it out for a new one as a proactive measure. These boilers have so many sensors that can go wrong and from there, it will be one thing after another.
Hi, I've got f76 and talked to Valliant and was advised it was the thermal fuse and it was part of the heat exchanger and would cost £625.00 to replace. I'm hoping it is the same problem as you found and I'll get a result, great vidio from an old school engineer 👍.
@@haywardsteve Vaillant says if the fuse fails, its because the heat exchanger has been overheated to a point where the plastic case has lost its integrity. That's why you can't get them separately. But the new ecotec hasn't got one at all....
I've had many a boiler do that especially vaillants, mainly due to not having to attend many faults on them. Know vokeras inside and out obviously. Great informative video there. 👍
@@HeatingGeek Hi there I was born just down the road in the old maternaty hospital that is now flats spent the first 35 years of my like in Barnet. I lived down in east barnet and went to barnet college (electrician) Now living in Ashford Kent My Son is still in Hertfordshire Also like you a Gas safe Heating engineer
I know the feeling mate ! I have quite an old Ravenheat CSI system boiler that only fires up when it feels like it ! LOL, Goes through the cycle and sparks but does not ignite, Then for some reason at some point it decides to suddenly fire up ! It's driven a couple of guys crazy who have had a look at it but as it's old I don't want to start throwing new parts at it, I had the transmistors replaced three years ago as it would start up and switch off after a few seconds and another Gas safe fitter said it could be these again ! Hey ho, Well done for getting there in the end, Great work !
Just come across you vid mate Pukka stuff I know the feeling I’ve been at it 2 days now with a similar issue on a biasi river plus Got boiler running without chamber cover as soon as you put cover back on it cuts out 😢 Lack of burner ignition fault code says I’m done taking a day off Keep at it He who dares
Well done HG great find mate. We had the same fault in work with a ecotec pro 28 2015 model it didn’t have the thermal fuse still had the wires but with a link at the plug the only fault code that was coming up on ours was F28 gas after 10 to 15mins of running ok if reset straight after going to F28 would fire for continue to spark and go back F28 if left for a bit would work for 10 to 15 mins then go back to F28. The boiler had a 2.5 meter horizontal flue run all ok several engineers on job we had replaced p.c.b gas valve ignition probe and then ignition lead to finally find out the connection was loose on the thermal fuse cables. Had a couple of smoke breaks on that job 😂
Worked on vaillants before for many years and was Commonly Board or gas valve check the pin connectors on the pink plug far right pins should start at 15vdc then jump to 21v DC then back down roughly 18v dc if it doesnt faulty pcb not enough power to open gas valve as rubber gasket sticks shut when damp ( great to find one fault disguising another well done )
HeatingGeek Thanks , I find it interesting how heating is done in other parts ! I’ve learned a lot from you guys , unfortunately wall mount boilers are a very small part of the North American markets! They are priced too high and American homes just don’t have enough radiators to use these boiler for the full potential! people will install these , only to remove out door reset and bump the output to 80 -90 degrees celsius !
Thanks :-) I think we all suffer from not walking away when we should. It's very difficult. Lunch or a quick cuppa outside can make all the difference.
Earth faults, I had a loo loo back in the day (looks skyward). Anyway, you live and learn, well done fixing it. One thing I used to do when faulting was send one man to check every fuse in the relay room, amazing how many times that cut fault finding time :-)
Mate , as a new heating engineer, your videos are brilliant for me to learn off , u explain everything really well , so keep um coming mate , could u do a video on using the multimeter ? And what to Look for when using it ?? Thanks mate , keep up the good work and stay safe
I done 30 years installing and should have got into breakdowns but lacked confidence so never built up technical knowledge Looking at ur videos I am thinking about jumping back in again but at nearly 57 and my gas ticket long expired Dunno if its worth it now Great work keep it up
Absolutely brilliant ! Your videos are brilliant Can we get the PDFs ? Watching from Isles of Man I’ve just moved here from Uk isolation for 2 weeks then back to work as gas engineer
We've all had that one boiler that refuses to play ball. I once had a board swap on Biasi and put two more boards in before i got a good one. So that's 3 boards. Who has three faulty boards right off the bat?? My head was melting by the end of that one!
A beauty ! Haven’t had thermal fuse cause this but have had 1 causing F28 which gave me similar problems, never once generated an f76 ! Straight to F28 as spark started on 1st ignition attempt. Like I said once, haven’t seen it before or since. You’ll likely never see this again Ollie!
Nice one mate, good perseverance.. I'm not a boiler trade person but have had an 831 for about 14 years now (gone through all the early upgrades) and had a few issues over the years... I'm in another technical industry that throws problems at me.. I like your attitude to getting this fixed... sort of bloke I'd employ because I can tell you really do care and give a shit.. cheers interesting video as well.. especially your fault finding methodology..
Well done. I’ve had a few doggy thermal fuses but Vaillant won’t supply a new one😢. They say the failure is probably an overheat issue!!! As if I can’t check a boiler overheating? Still there’s always ebay😅
I went on a Vaillant course in Bristol a while ago and the guy taking the group told us all that they were available on the internet and he winked when he said it😂
Very logical diagnostics, good job... Recently I spent 5 hours on a Vaillant 146 ecoTEC Exclusive constantly stepping down to "emergency mode" and showing all sorts of error codes. I changed the CO sensor and it worked normally for about 15 minutes before it stepped down. When all was said and done I had swapped 2 new CO sensors and used, 2 new prints spoken to Vaillant for hours (thanks for patience and good faultfinding service). What was the problem? Eventually we discovered that the prints didn't recognise the boiler in spite of menu 93 showing the correct value, in this case 06. I then changed everything back to the original CO sensor and the original print and set menu 93 once again to 06 and it all worked. The Vaillant technician's response "I have no good explanation, it shouldn't happen". Later I had a chat with a radio technician that told me that this kind of fault is due to overheating and no ventilation in box that contains the print. Since then (3 weeks) I have always checked and reprogrammed all values when I previously just changed the print and in some cases that was all I had to do. I have stacks of old prints and now I wonder if all those prints actually works fine if they are reprogrammed?
I will go in a change the DSN if a boiler is messing around a lot. I tell it its 06 for an 824 then let it throw a F70 fault code (incorrect DSN). Then I put the correct code for the actual boiler in. Like 17 for an 837. For some reason, they just glitch out.
That would of done me as well untill the f76 come up. F62 is always board as you know. Good spot on the conecter as those leads and fuses not sold separately 😤 new heat ex. I aways take them off old boilers i or colleagues take out.
@@HeatingGeek i had this exact fault today, f62 changed pcb still f62 fitted gas valve still f62 😡then flashed f76 briefly. Then I remember this video 😂 and me commenting on it
Hi mate, lesser engineers would have given up and recommended a new boiler, that's the difference between an installer with a little knowledge of how to repair a boiler or someone who just can't be bothered, or a boiler breakdown engineer with loads of experience and knowledge, keep up the good work👍
It because they are to ensure the safety of the main heat exchanger. If it gets too hot the plastic will become compromised and leak fumes etc. 9 times out 10 if you link them out you will find the boiler overheats like F@#k and that's what caused the issue.
Had a similar problem last week on an ecotec+ 428 fault f62 the customer stated they had a smell of gas at the boiler I checked the operation of the gas valve all appeared to operate correctly reset boiler a ran without a problem. Replaced the gas valve following morning the f62 fault was a.
Excellent 👍🏼✨great video ! You’ve been the first guy who’s made me create my own youtube account only for watching your clips as well as liking and subscribing . well done .
I've had this fault also,the connection to the stat can go poor is you have condensate leak from flue, normally clean up and they are ok, they also don't always show the fault. Top work.. well done.
Keep doing what you do best then eh? Having a quality conscience is a gift and providing good , honest service at a fair price, is in itself priceless in in itself, so therefore you have learnt well enough young sir! Could’ve done with you recently myself,... I have an Xtramax 2 ,17 year old boiler,that as good as it is, keeps writing off thermistors,which are harder and harder to get through obseletion !, Shame cause its a Sebuk 87.5 rating and has given great service to date!! Anyway nuff about boilers eh? Stay safe matey and take Zero chances !! ATB Nigel
At the same time Sauner Duval had and version of that boiler. Xtrafast was ither the smaler GW or the SD. I cant remember now. I bet you can get the NTC from another model. Stay safe :-)
HeatingGeek hi matey, staying well it seems in the 10 months since you sent me a tip on Gloworm xtramax alt parts, it was the case, so thanks again! Whilst I never touch the gas side of it, I do maintain the waterworks! I had a H E block after 17 years with the mag issue, ( bought a £30 cleaned one on line,with correct compressive rubber seals ,difficult access,but worked a treat!), tho I do make a point of refreshing with new inhibitor every 3 years or so?! The gas flame is a lovely stable blue so I don’t see the point of disturbing it, do you? I think as now genuine parts are available on line, more than they were a year or so ago, I would prefer to keep it going as have dad very little income since Covid kicked off! As I’m not sure who your target audiences are, I wondered if it could be a theme for one of your vlogs to offer your thoughts and pro opinions on the various levels of risk any diy folk should go to.! We all realise the dangers of gas, and that a little knowledge is a very dangerous thing in this regard! I appreciate what you do(well), and you have clarified certain questions I had before I pushed on with my maintenance work. So if you have time to reply sometime, I would thoroughly appreciate it! Stay safe and keep doing what you do, which in turn keeps others warm and safe! Cheers Nigel
Electrician, but find your channel very interesting to watch . Your fault finding skills are first class. Knowledge is king , and you clearly have plenty . 👍
Because 7,8,and 9 are connected to the 24v side of the transformer. Any issues with the low voltage side of the boiler will usually show up on the 24v stuff first. :-)
Feel your pain mate, rare that it's anything else than pcb /gas valve for ignition if you see good spark. didn't help having a fake fault code at the start tho...mad
Damn just came across this video 2 weeks too late. Had the same fault myself a couple years ago found it to be the thermal fuse, oddly enough the later production units they had actually taken the fuse out of the Vaillant and Glowworms due to warranty issues and nuisance faults and if a customer calls them now and it's due to the thermal fuse Vaillant engineers will just link it out if there's no other issues.
I know. The thermal fuse is there for a reason but 20-30% of the time it isn't an issue with the boiler overheating to the point of damaging the heat exchanger. :-)
@@HeatingGeek Yeah, but you'd figure if the reason it was there was good enough the later production models would have kept it. As is they've come out and changed one heat exchanger for a newer one without the link and told my company they just link out the thermal fuse now. One of the ways to actually kill one of those fuse links - hot drain the boiler during flushing, had guys in the local stockists often talk of it happening. Actually don't tend to get the fault on models here especially if they ever had the Vaillant service package as they were removed by Vaillant engineers.
I have been doing breakdowns for 40 years and think your work ethic is excellent. Problems like this are always better when slepped on . Advise, dont ever give in. Well done.
I really appreciate the comment. I haven't been in here for a while. Keep up the good work
Breakdowns are what make us.
I know your a good engineer when you take things like this personally, shows your emotionally invested as opposed to not caring , well done 👍 keep up the good content.
Thanks :-). I want to fix everything.
@they're taking the peace :-)
Well done HG great fault finding work. I know well that tormented feeling, when you go home having not resolved the issue. You nailed it on the next visit, and that feeling is sweet when you find the fault. Excellent video, I relate to it very much.
That's why I put this here. People think I don't have problems. :-)
@H UK Thanks
Thanks Olly. That was some experience and proper fault finding. It shows there are proper engineers out there when they pull their finger out.
:-)
Absolutely well done mate.
Been in the 25 long years now and I'm still learning.
I too have a saying. "Nothing beats me". So well done again for sticking with. You've taught me something today.
Lee
Thanks :-) This job can be very very frustrating sometimes. :-)
Great to see someone taking pride and care in you're work. If you're anything like me, when anything like that has got me hung up. It plays on my mind even when I should be taking time out/or I've resolved it.
Yes. Im a grumpy bugger at home too. :-(
Here I would like to have a big thanks for Oliver Glicrest who come to fix my boiler, the way Oliver Gilcrest changed pump is so clever and work so effecient, the previous enginner did not fix the problem properly and also damged the valve, Oliver spend some time identify the valve problem and also fix the part in the valve, all problem parts position are in a very difficulty position, Oliver tried so hard manage to fix them, Oliver has such high standard skill to understand the boiler system and high standard skill to fix them, the way he is working in such professional way very suprise me. Here I highly recommend him to every one who need engineer to fix their boiler. Well done Oliver.
Throwing up that F76 initially from nowhere didn’t half make me giggle. Bloody boilers !
Saw a vid from a Vaillant engineer that said Thermal fuse will often fail to F62 as it begins to fail before eventually going to F76 so worth checking before replacing board - although it will usually be the board.
I found out the hard way. :-)
F76 last one I did was main heat exchanger senser and the thermal fuse..
Well done founding the fault and fixing it.
Thanks :-)
I like stripping old boilers and putting them back together again, learning knowledge and skills is only hands on, can't just read and learn. You got a truck full of skills, passion, patience too.
Like watching your stuff, would love to have 30% of your skills and boiler confidence on repairs. It's a mighty long road. Knowledge can't be bought its gotto be learnt.
Cracking job/skills/ motivation 👍👍
Thanks. I will learn about any boiler I can fix. Right down to the nitty gritty. If anyone does that on enough boilers they have no fear. :-)
Always on the look out for any old boiler, don't get many these days as I mainly service now, although the options of repairs/fault finding is on the horizon! Nothing ventured nothing gained...
You fixed it because you know what you are doing and have now learned from this testing lesson, well done fella
Exactly. Every days a school day. :-)
I got 2 minutes into your video and was itching to tell....I have the same boiler with same problem F62 and F27...fixed 3 days ago. After 2 years and 3 fitters and hopelessly out of pocket, it was fixed thur. 16 apr 2020, 2 days ago. Turned out to be Pump ( motor) and a new filter was needed. BINGO, job sorted
What filter? The Pump could of caused the F27. Check out the "Vaillant pump hack" to see how the F27 can be intermittent and the pump ruled in or out using the boiler software. :-)
You know your onions mate lol coz some people would have said needs a new boiler... brilliant fault finding
I really don't like to lose to a boiler. Especially a boiler I know so well. :-)
@@HeatingGeek mines the 2007 ecotech plus its been fantastic reliability wise changed three parts in all that time (1 was my fault long story lol) im interested in your videos as im sure its inevitable more things will fail eventually lol... is it just the larger vaillant combis that have the dip tube feature mate btw? Thanks
Great content HG, I've learnt a lot from your vids and no doubt will continue to.
You're a solid engineer and you clearly put the effort into recording, editing and upload videos to help drive up standards in the industry. Stay safe and keep up the good work :)
Nice one. Thanks for commenting it means a lot. :-)
Great show of character by persisting with the problem until you won. Excellent.
Thanks. Took some years off me. :-)
Your dedication and perseverance is a credit to you ! After watching a few of your videos we are probably going to get your company to do a service on our boiler.
Wait until summer. Its crazy busy :-)
Time for a new boiler. My ecotec 831 gave me 10 years trouble free service but now I’ve swapped it out for a new one as a proactive measure. These boilers have so many sensors that can go wrong and from there, it will be one thing after another.
I get your point. I have a 12 year old ecotec in my house. I will replace it if the heat-exchanger fails but the rest of it is going ok. :-)
What a nightmare! that certainly was a difficult one! Another great vid, always very helpful, cheers.
Glad you liked it. :-)
Hope you and your family are good, nice job.
Yes all good. You?
Very well thanks, keep the videos coming, I've no work at all right now, but at least I can look at some! lol
Hi, I've got f76 and talked to Valliant and was advised it was the thermal fuse and it was part of the heat exchanger and would cost £625.00 to replace. I'm hoping it is the same problem as you found and I'll get a result, great vidio from an old school engineer 👍.
If the fuse has gone then a new heat exchanger is needed. The fuse protects the plastic shell of the heat exchanger.
Typical not a repairable part, costs the customer £625 instead of maybe £10 rip off by Valliant
@@haywardsteve Vaillant says if the fuse fails, its because the heat exchanger has been overheated to a point where the plastic case has lost its integrity. That's why you can't get them separately. But the new ecotec hasn't got one at all....
Exceptional investigation work well done and i hope its still working ok ,great video,thanks for post.
Thanks for watching it. 🙂
I’ve had a few boiler where I’ve lost my head and couldn’t think straight but then took a time out and sorted the fault out! 🤯
We all do. I haven't had one this year. :-)
You are s genius Ollie. Can't thank you enough for all your hard work to make those great videos 🙏🙏. Hope you and your family safe and healthy.
All good here. Thanks :-)
I've had many a boiler do that especially vaillants, mainly due to not having to attend many faults on them. Know vokeras inside and out obviously. Great informative video there. 👍
Vokera? They are quite rare down here now a days. Where are you base?
I'm in Glasgow. Every housing association fitted vokeras, unicas, lineas and the dreaded red light compacts. Lol
Mint vid!!! Love how u showed how boilers can break us!!
I was stressed on this one. :-)
Excellent fault finding appreciate the video mate.
No problem 👍 Thanks for watching it. :-)
Well done mate. Goes to show every day is a learning day.
Yep. Stressful sometimes. :-)
Nice shot of High Barnet in your opening
Indeed. Your local then. :-)
@@HeatingGeek Hi there I was born just down the road in the old maternaty hospital that is now flats spent the first 35 years of my like in Barnet. I lived down in east barnet and went to barnet college (electrician) Now living in Ashford Kent My Son is still in Hertfordshire Also like you a Gas safe Heating engineer
I’m glad you sorted it
So am I :-)
I know the feeling mate ! I have quite an old Ravenheat CSI system boiler that only fires up when it feels like it ! LOL, Goes through the cycle and sparks but does not ignite, Then for some reason at some point it decides to suddenly fire up ! It's driven a couple of guys crazy who have had a look at it but as it's old I don't want to start throwing new parts at it, I had the transmistors replaced three years ago as it would start up and switch off after a few seconds and another Gas safe fitter said it could be these again ! Hey ho, Well done for getting there in the end, Great work !
Thanks. Ravenheat have a great tech department. The engineer should give them a call.
Great video - thanks for the honesty and transparency ... not everyone is brave enough to show this side of the trade.
The more you do it the less it happens.:-)
Well done mate.😊
Thank you! Cheers! It was a difficult one. :-)
Just come across you vid mate
Pukka stuff
I know the feeling
I’ve been at it 2 days now with a similar issue on a biasi river plus
Got boiler running without chamber cover as soon as you put cover back on it cuts out 😢
Lack of burner ignition fault code says
I’m done taking a day off
Keep at it
He who dares
Thanks for taking the time to comment :-) Sorry I didn't see this sooner. Bet you have no hair left after dealing with a Biasi for 2 days :-)
Well done HG great find mate. We had the same fault in work with a ecotec pro 28 2015 model it didn’t have the thermal fuse still had the wires but with a link at the plug the only fault code that was coming up on ours was F28 gas after 10 to 15mins of running ok if reset straight after going to F28 would fire for continue to spark and go back F28 if left for a bit would work for 10 to 15 mins then go back to F28. The boiler had a 2.5 meter horizontal flue run all ok several engineers on job we had replaced p.c.b gas valve ignition probe and then ignition lead to finally find out the connection was loose on the thermal fuse cables. Had a couple of smoke breaks on that job 😂
It's a weird issue. How it causes such unrelated issues I don't know. :-)
Worked on vaillants before for many years and was
Commonly Board or gas valve check the pin connectors on the pink plug far right pins should start at 15vdc then jump to 21v DC then back down roughly 18v dc if it doesnt faulty pcb not enough power to open gas valve as rubber gasket sticks shut when damp ( great to find one fault disguising another well done )
Thanks rob. I'm ex Vaillant engineer too. :-)
Great video , New sub from Massachusetts!
Wow, you must be one of the first non UK subs. :-) Welcome
HeatingGeek Thanks , I find it interesting how heating is done in other parts ! I’ve learned a lot from you guys , unfortunately wall mount boilers are a very small part of the North American markets! They are priced too high and American homes just don’t have enough radiators to use these boiler for the full potential! people will install these , only to remove out door reset and bump the output to 80 -90 degrees celsius !
Good job
Hey love your videos .. they've helped me loads of times. When you going to post some more ?
As soon as I can. I have loads filmed. :-)
Brilliant mate ! Different fault codes throwing up is the sort of things that happens to me. Have to fight back the tears 😭 😂
I was interesting at least. :-)
Always agree with walking away and coming back re freshed. Great vid btw
Thanks :-) I think we all suffer from not walking away when we should. It's very difficult. Lunch or a quick cuppa outside can make all the difference.
Gj , would have done the same , sometimes these fault codes get you on the wrong start
This one was difficult. :-)
Love your videos
Well done HG👍👍👍
Thanks :-)
Earth faults, I had a loo loo back in the day (looks skyward). Anyway, you live and learn, well done fixing it.
One thing I used to do when faulting was send one man to check every fuse in the relay room, amazing how many times that cut fault finding time :-)
Sometimes the simplest checks find the massive 2 month long issues. :-)
I was guessing some sort of moisture problem shorting out connections, well done for staying with it
Drove me mad the first day. :-) Second day was a lot easer . :-)
Hi king...keep well
Thanks, you too!
Mate , as a new heating engineer, your videos are brilliant for me to learn off , u explain everything really well , so keep um coming mate , could u do a video on using the multimeter ? And what to
Look for when using it ?? Thanks mate , keep up the good work and stay safe
I will get it done soon. :-)
Gr8 vid & info as always Oliver stay safe and well from a fellow gasman
Thanks, will do!
Awesome job, good catch
It was easy the next day. First day was super stressful. :-)
Great video. Leaving all the time.
Leaving? Why :-)
Learning
@@brianmayne6513 Oh ok. :-) Me too, every day. :-)
Fair play dude, f76 is death knell, you’ve kicked it back to life.... homage due
I was very stressed about going back here. :-)
Well played it’s basically like a Worcester EA where the electrode connectors expand with heat and no longer make contact causing no flame detection
Exactly. :-)
I done 30 years installing domestic and shoul
I done 30 years installing and should have got into breakdowns but lacked confidence so never built up technical knowledge
Looking at ur videos I am thinking about jumping back in again but at nearly 57 and my gas ticket long expired Dunno if its worth it now
Great work keep it up
Well done
Thanks :-)
👍 Great video & I feel your pain. Glad it didn't break you
Thanks. I felt my pain too. :-) This ended well though. :
Love your videos, I’m learning loads. Thanks for all you are doing.👍
No problem. :-) I have more coming this week. :-)
Absolutely brilliant ! Your videos are brilliant
Can we get the PDFs ?
Watching from Isles of Man I’ve just moved here from Uk isolation for 2 weeks then back to work as gas engineer
What PDFs?
Rule number one of fault findings.
Bad connections, always results in intermittent and erratic fault readings.
Yea, I used to them but this one was a pain. :-)
We've all had that one boiler that refuses to play ball. I once had a board swap on Biasi and put two more boards in before i got a good one. So that's 3 boards. Who has three faulty boards right off the bat?? My head was melting by the end of that one!
@@lazenbytim I bet. I would of cried on that one. :-)
A beauty ! Haven’t had thermal fuse cause this but have had 1 causing F28 which gave me similar problems, never once generated an f76 ! Straight to F28 as spark started on 1st ignition attempt. Like I said once, haven’t seen it before or since. You’ll likely never see this again Ollie!
@@bazp2727 I'm ready for it now. :-)
Nice one mate, good perseverance.. I'm not a boiler trade person but have had an 831 for about 14 years now (gone through all the early upgrades) and had a few issues over the years... I'm in another technical industry that throws problems at me.. I like your attitude to getting this fixed... sort of bloke I'd employ because I can tell you really do care and give a shit.. cheers interesting video as well.. especially your fault finding methodology..
Nice comment. :-) Thanks for the positive vibes :-) Even the difficult jobs are interesting. Afterwards> :-0
Well done. I’ve had a few doggy thermal fuses but Vaillant won’t supply a new one😢. They say the failure is probably an overheat issue!!! As if I can’t check a boiler overheating? Still there’s always ebay😅
I have quite a few of them. Every boiler I took out and every heat exchanger I replaced.
I went on a Vaillant course in Bristol a while ago and the guy taking the group told us all that they were available on the internet and he winked when he said it😂
Yeah, I keep them from any boiler I replace.
Nice video as always. Looking forward to the open therm video. 👍
Thats a long way off but I will do it. :-)
Great info
Very logical diagnostics, good job...
Recently I spent 5 hours on a Vaillant 146 ecoTEC Exclusive constantly stepping down to "emergency mode" and showing all sorts of error codes. I changed the CO sensor and it worked normally for about 15 minutes before it stepped down. When all was said and done I had swapped 2 new CO sensors and used, 2 new prints spoken to Vaillant for hours (thanks for patience and good faultfinding service). What was the problem? Eventually we discovered that the prints didn't recognise the boiler in spite of menu 93 showing the correct value, in this case 06. I then changed everything back to the original CO sensor and the original print and set menu 93 once again to 06 and it all worked. The Vaillant technician's response "I have no good explanation, it shouldn't happen".
Later I had a chat with a radio technician that told me that this kind of fault is due to overheating and no ventilation in box that contains the print. Since then (3 weeks) I have always checked and reprogrammed all values when I previously just changed the print and in some cases that was all I had to do.
I have stacks of old prints and now I wonder if all those prints actually works fine if they are reprogrammed?
I will go in a change the DSN if a boiler is messing around a lot. I tell it its 06 for an 824 then let it throw a F70 fault code (incorrect DSN). Then I put the correct code for the actual boiler in. Like 17 for an 837. For some reason, they just glitch out.
Awesome video Ollie, 👍. Brilliant how you went through the process to eliminate different faults, that would have fried my brain mate!
It did fry my brain. :-)
Good stuff - fault finding is a logical process that sometimes defy logic.😉
Thanks for watching and you are completely correct.
Another great video mate. I just repaired an exact same boiler but different fault. This might come handy the next time 👍🏼👍🏼.
I do love to fix these boilers. :-) But not this one.
Great vid I love these
Great video Ollie, its comforting to know its not just me that loses the head at times on repairs, even the best do! :D
Yep we're all the same. That's why I filmed the second visit.
That would of done me as well untill the f76 come up. F62 is always board as you know. Good spot on the conecter as those leads and fuses not sold separately 😤 new heat ex. I aways take them off old boilers i or colleagues take out.
Exactly!
@@HeatingGeek i had this exact fault today, f62 changed pcb still f62 fitted gas valve still f62 😡then flashed f76 briefly. Then I remember this video 😂 and me commenting on it
Well done 👍👍👍
Thank you! Cheers!
How are you doing? Haven't heard from you for some time now 👍
It was funny to see ur frustration
Thanks :-\
Great work 👊🏾
Thank you 🙌
Great video thanks 👍
Glad you enjoyed it
Hi mate, lesser engineers would have given up and recommended a new boiler, that's the difference between an installer with a little knowledge of how to repair a boiler or someone who just can't be bothered, or a boiler breakdown engineer with loads of experience and knowledge, keep up the good work👍
Nice. Thanks :-) I will keep it up.
Great vid mate. Can’t believe Vailiant don’t sell those thermal stats separately, had them go a few times.
It because they are to ensure the safety of the main heat exchanger. If it gets too hot the plastic will become compromised and leak fumes etc. 9 times out 10 if you link them out you will find the boiler overheats like F@#k and that's what caused the issue.
Had a similar problem last week on an ecotec+ 428 fault f62 the customer stated they had a smell of gas at the boiler I checked the operation of the gas valve all appeared to operate correctly reset boiler a ran without a problem. Replaced the gas valve following morning the f62 fault was a.
PCB. :-)
Would doing the electric tests shown you about the earthing issue of the boiler
Yes. :-)
Hats off!
I have had a worse one now. :-) Got it all filmed... 3 visits. After visit 2 I nearly quit.
Like you say sometimes we cant see the wood for the trees mate ! Well done.
Thanks 👍
Great you persisted and won through, we have all been there on more than one occasion that’s for sure. Great tip though always check connections
It doesn't happen often, but when it does its nothing but chasing your tail. :-)
Excellent 👍🏼✨great video ! You’ve been the first guy who’s made me create my own youtube account only for watching your clips as well as liking and subscribing . well done .
That's awesome! Thanks :-)
If you are getting beaten by boilers we best quit! Decent video
The second day it was easy. :-)
Well done bud.
Al.
Thanks. :-)
I've had this fault also,the connection to the stat can go poor is you have condensate leak from flue, normally clean up and they are ok, they also don't always show the fault. Top work.. well done.
It's a difficult one to find. I will never forget it. What about yours?
@@HeatingGeek been fine ever since, new seals in flue also
@@andyjennings2061 SO stressful at the time but you will never ever forget the fault. ;-)
Really good video mate
Glad you enjoyed it. Thanks for taking the time to watch. :-)
Another good one mate, had similar with an old sime, fried my brain, went back next day and sorted it
Sime are a rare boiler. I have only seen a handful in my career. Always a difficult part order.
Great vid, just subscribed. Loads of simes around West yorks btw 🙄
@@mickeytee123ify I don't see very many around here. :-
Have been there as well on faults
Brain melts sometimes. :-)
I felt your pain there
I was proper stressed. :-) All good now and people like the pain. :-)
Keep doing what you do best then eh? Having a quality conscience is a gift and providing good , honest service at a fair price, is in itself priceless in in itself, so therefore you have learnt well enough young sir! Could’ve done with you recently myself,... I have an Xtramax 2 ,17 year old boiler,that as good as it is, keeps writing off thermistors,which are harder and harder to get through obseletion !, Shame cause its a Sebuk 87.5 rating and has given great service to date!! Anyway nuff about boilers eh? Stay safe matey and take Zero chances !! ATB Nigel
At the same time Sauner Duval had and version of that boiler. Xtrafast was ither the smaler GW or the SD. I cant remember now. I bet you can get the NTC from another model. Stay safe :-)
HeatingGeek hi matey, staying well it seems in the 10 months since you sent me a tip on Gloworm xtramax alt parts, it was the case, so thanks again! Whilst I never touch the gas side of it, I do maintain the waterworks! I had a H E block after 17 years with the mag issue, ( bought a £30 cleaned one on line,with correct compressive rubber seals ,difficult access,but worked a treat!), tho I do make a point of refreshing with new inhibitor every 3 years or so?! The gas flame is a lovely stable blue so I don’t see the point of disturbing it, do you? I think as now genuine parts are available on line, more than they were a year or so ago, I would prefer to keep it going as have dad very little income since Covid kicked off! As I’m not sure who your target audiences are, I wondered if it could be a theme for one of your vlogs to offer your thoughts and pro opinions on the various levels of risk any diy folk should go to.! We all realise the dangers of gas, and that a little knowledge is a very dangerous thing in this regard! I appreciate what you do(well), and you have clarified certain questions I had before I pushed on with my maintenance work. So if you have time to reply sometime, I would thoroughly appreciate it! Stay safe and keep doing what you do, which in turn keeps others warm and safe! Cheers Nigel
Good work and I know what you mean about smoking I used to slip out to the van and have a smoke
It was like pushing my re set LOL
Keep them coming
I will. I enjoy doing it, I just dont have any time. :-)
Electrician, but find your channel very interesting to watch . Your fault finding skills are first class. Knowledge is king , and you clearly have plenty . 👍
Thanks man. :-)
I love your videos. Good job!
I love making them :-)
Thanks Ollie, very interesting vid again. Hope the Covid hasn't delayed your polyps surgery.
Cancled. I was ment to be in Cyprus today too. :-(
@@HeatingGeek Bummer. :-(
Why did you check between no 7 and the earth at the board with linking out the thermal fuse? Could you not test the thermal fuse on X20? Or on x51
Because 7,8,and 9 are connected to the 24v side of the transformer. Any issues with the low voltage side of the boiler will usually show up on the 24v stuff first. :-)
Feel your pain mate, rare that it's anything else than pcb /gas valve for ignition if you see good spark. didn't help having a fake fault code at the start tho...mad
Really was a frustrating job. :-) All sorted now. :-)
Damn just came across this video 2 weeks too late. Had the same fault myself a couple years ago found it to be the thermal fuse, oddly enough the later production units they had actually taken the fuse out of the Vaillant and Glowworms due to warranty issues and nuisance faults and if a customer calls them now and it's due to the thermal fuse Vaillant engineers will just link it out if there's no other issues.
I know. The thermal fuse is there for a reason but 20-30% of the time it isn't an issue with the boiler overheating to the point of damaging the heat exchanger. :-)
@@HeatingGeek Yeah, but you'd figure if the reason it was there was good enough the later production models would have kept it. As is they've come out and changed one heat exchanger for a newer one without the link and told my company they just link out the thermal fuse now. One of the ways to actually kill one of those fuse links - hot drain the boiler during flushing, had guys in the local stockists often talk of it happening. Actually don't tend to get the fault on models here especially if they ever had the Vaillant service package as they were removed by Vaillant engineers.
nice fix geek, bet it was a good feeling when you opened that gas isolator and she lit :)
It was. :-) I think you can hear that in my voice. :-)