Gas Training - Sequence of operation gas boiler - Fault Finding
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- Опубликовано: 13 июл 2024
- How A Gas Boiler Works. Roy from Viva Training Academy shows us how a combi boiler works and the full sequence of operation.
A detailed look at fault finding on gas boilers for trainee plumbers and trainee gas engineers 
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Sequence of operation is easily in the top 10 things a gas engineer needs to know and this is well explained. Have learnt this information through blood sweat and tears and here it is on a plate. Excellent. Hope that this channel keeps growing and that Allen manages to find the time to post more key videos like this to improve engineering mindsets.
For all new trainees. I beg take notes. It’s worth its weight in gold.
Yes I would love to see more of these videos, especially more on fault finding where the boiler does not give an error code. I am a gas engineer but these jobs take longer to diagnosed.
Allen explains a lot better than anyone else on RUclips.
If you want people to actually understand you need to show every single component as you explain .
And I mean it - dismount one boiler piece by piece and put them back together in the sequence of operation.
I am actually doing my plumbing qualification and then I'll do my gas qualification.
It's a shane my teachers are nowhere near Allen when it comes to explaining and knowing what you're doing.
Probably Allen is the best guy in trade .
Thank you Allen and Roy...great stuff...you guys are very generous with your time.
Thoroughly enjoyed watching this, very easy to digest. Thank you Mr Fugler & Mr Hart 👍.
Simply outstanding video, many thanks and kudos to Roy! Invaluable information well presented and easy to follow! A mini lecture on sequence of operation, keep these videos coming please, we appreciate them!
Thanks for the great content Allen. This channel is incredible and I'm very grateful for sharing knowledge with us.
Thanks Roy and Allen, always useful to have an organised systematic approach when fault finding, helps keep a clear head. I too have had the reverse polarity issue, Electricians removed supply from plant room in error and when they reinstated guess what it was reverse polarity, which is one of their fundamental checks when installing any new circuit, took a little while to solve and a visit from me. Real world dilemma .
Well done. Very good and simple explanation of boiler working methods. I really like this.
Thanks allen and roy what a clever bloke
Excellent demonstration of the sequence and very useful 👍
Checking off the various components for failure is my nightmare atm lol so your content was class ....thanks Allen & Roy 👍
It’s gotta clic with me at some point lol.
Thank You Roy, Baxi 80eco With combustion cover off Boiler worked in both Heating and Hot Water modes. But went, to lockout with cover on. Change APS, changed PCB. It was only when I changed the Boiler, I found the fault. Inner flue clamp had corroded. POC was re-entering the boiler. and causing issues with the flame rectification. Cover off air was taken from the room. One to look out for!
Thanks guys, as an apprentice engineer your videos are really informative and incredibly useful 👍🏻
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Keep up the good work guys brilliant stuff 👍👍❤️❤️thanks a lot gents
Roy and Allen Dream team man !!!
This is an excellent video ,thank you
This guy's excellent.
After watched your videos I visited Viva Training yesterday. Im a QS wanting a carear change so I decided to visit Viva I have a few queries because I want to go into renewables eventually but I will be more then likely signing up with Viva for a new entrants Gas Safe course toping up with renewables. Thanks for your videos and your honest straight forward approach.
I am not working with Viva anymore, it would be best to ring richard and ask him. Thanks.
Amazing works guys
I’m new to this site and enjoy listening to see if he does it like I used to and found that I’m learning new ways which is no use to me as I retired three years ago and unable to work because of arthritis but enjoy watching them the young guys have no excuse for not knowing what to do. Unfortunately guys that haven’t served there time can sit and get there Gas safe certs and start as gas engineers with no knowledge and I think that’s dangerous
Great video! I would love to see a video with a lot of boilers how do we put them into service mode high and low and how to put them into de-aeration mode, as i think this would be very helpful. Some boilers are very easy to work on, some are very tricky. I recently serviced an Ideal Vogue and i think they have the best menu i saw on a boiler. I don’t have to much experience but i really loved servicing that boiler. Thank you for your support and help Allen!
Great suggestion!
Thanks for the vid useful and simple information 👍... would be great to go through it again with an actual boiler 🙂
Excellent video 👍👍
really good. thanks
Wonderful video
Thanks to you both for your time and effort making these useful videos . Could you please cover electric checks on boilers as mentioned in video i.e reverse polarity.many thanks
Very well explained ✅✅✅
Brilliant video that 👍
I use to repair circuit boards on boilers and washing machines so I needed to learn boiler sequence . I no that I am not qualified to repair boilers but would visit said boiler and testing reviled other component fail . I gave up repairing and went into automotive electrical repairs . I really enjoyed vid and wrote down sentences before watching to see if I remembered .
Out of curiosity how did you learn to fix/repair circuit boards for boilers? I’d be really interested to learn as I imagine it’s alot more environmentally friendly and cheaper than buy a new circuit board when there is a small select that needs replacing to get it back working again
@@dees9295 I spent a long time learning electronics and started with video recorders t.v . All circuit's are just small circuits jointed together. Most repairs are dry joints on parts that have larger current flow ie power supply. Capacitor's or the black bits the ic.
Thanks both a top video well explained .👍
Our pleasure!
Great video, very interesting 👍
Thank you for watching. Check out our full playlist from Viva Training Academy
Hi Alan & Roy,
Thank you so so much for the great video as always. just wondering if there's any chance you guys could do a fault finding video on a old boiler like baxi solo 3 or something. as a new engineer I think it would help lot of us newbies.
Thank you so much again. keep up the good work sirs.
Fantastic video I’m new. To this career have. Done a video on electrical fault finding as you mentioned end of the video
Top class information from u guys especially Roy _ sorry Alan 🙂
Hi Allen, very educational as always! Any chance to make a video on what one should expect when adding just boiler on their card? Thank you
Thank you
Great videos guy, really useful and well explained. Do you plan on doing anything on boilermates? Probably a random thing but have quite a few housing estates with them on and they're not the easiest things to work on if not done regularly
Its excellent video but I wish if we have explanation with a picture of actual part to understand better please can you do other video with a boiler running Thanks
he got great knowledge. i am newly gas safe. i wish i had this much of knowlede. but i do watch all videos from allan and always something new to learn & great information.
thanks for sharing knowlegde .. 😊😊😊
Thanks for watching!
Thanks very much for your comment, please consider subscribing to support the channel 🙂
@@AllenHart999 already have :)
As a newbie service engineer, I would love to see an installation from A-Z. Is there already available? Great vids. Thanks.
Hi love the videos good work I have a Worcester green star 35 I’ve replaced pcb board and wiring loom when hot water tap is turned on the boiler climbs to 100 degrees and shuts down the boiler is fine in heating mode when I remove the low power plug from the pump and plug the pump into a power source avoiding the pcb board so pump runs constantly there’s no issues when I put the hot tap on I thinking there’s a issue with the black power box on the side of the pump
thumbs up 4 Mr big hart
Roy topman 💪
Thank You
Nice video fellas. Could you post the link to the video about testing thermistors and the resistance values were looking for. Thanks.
Hi Allen, thank s for all your great videos.
I am working on an Ideal logic 30 boiler. Changed flow turbine and switch plus diverter valve.
No hot water, display showing 0 everything else works well, light not coming on turbine switch.
Any suggestions would be much appreciated?
Excellent video, as a newby to repair of boilers found this informative, had a Main 24HE to look at, it would fire up, call for CH or DHW went to flame failure, fan was ok so changed the air pressure switch, now it fired up for about 30 seconds then goes to flame failure, so rang Baxi, they said change the PCB, but the fault is still there, so I’m assuming it’s one of the components after that, could you shed any light as to what it may be?
industrial heating engineer here who has never had experience in this type of work , i take it that if you use youe ears and can here the fan and pump running then you do not have to check the top half of what you wrote on the board
Most exellent thamkyou
Roy F is my favourite! Wish he was me dad….
Legend
Thank you for watching. Check out our full playlist from Viva Training Academy
First of all, thank you for the great videos! My question would be regarding the flame modulation. Does the boiler sense the actual amount of flow of heating water (eg.: in liter /sec) or it only senses the temperature of it (in order to generate the voltage signal for the modulating magnet of the gas valve)? In other words, which is the basis input parameter for flame modulation? Is it only the flow temperature or PCB also uses the actual amount of flow for generating the voltage signal for the modulating magnet? Thank you in advance for your answer!
Hi Korum,
Generally most boilers use the flow temperature to determine the modulation, however newer boilers which have both flow and return thermistors will use the differential between them to determine modulation.
thanks could that document be uploaded anywhere?
👍👍
Hello, my question is the following:
When the boiler is off, where is the three-way valve positioned towards the heating systems or the sanitary water?
Thanks
👍👍👍👍👍👍
Very good and clear video.just that I'm a service engineer and when I tried to put boiler in hot water demand it goes on overheat and cuts off. Comes back on.Baxi Combi 105 HE.diverter valve has been changed.could it be the plate heat exchanger. Would be a great help.thanks
Avnish Kumar,
Thanks for the feedback.
If the heating is working OK, then yes I would be looking at the plate heat exchanger, if the heating is also causing problems, look at the pump not circulating correctly.
Could you please do a video on how to do the electrical safety checks correctly in a on the job situation. Some boilers have a 3 pin plug, others wired directly from the spur. And S plan wiring centre and it can be a bit confusing on the exact procedure for me. Thank you for all the informative videos. 👍🏼
ruclips.net/video/5mIb8p3mYlQ/видео.html
@@AllenHart999 thank you Allen, much appreciated. 👍🏼
Roca Victoria 20/20, radiators circuit only,never domestic hot water
If you know, will the radiators, the CH, still work well,still get hot, if the flow sensor(hall sensor+ moving magnet ) in bad,or even disonnected?
Can you do a video on why co levels might be really high. Some Manufacturers seem to be happy with 250 ppm and 0.002. I'd prefer to see a better result.
I will chat with the Viva team and see what we can do. Thanks.
Hello. I have a potterton suprima 40L. Controller starts the fan, water pump comes on. But no spark or attempted spark. Refurbished pcb put in, brand new spark ignition lead put in. Doesn't turn on. Any ideas?
our worcester 42 kw boiler has not got sufficient head to pump to our loft extension other pump manufactures now do a 8 metre head in the past you could inter- change the impellar housing into the body the problem now is worcester don't supply these anymore my question is can a grunfos impellar fit the body of the bosch pump this will save lots of time in exchanging the whole pump assembly ..many thanks
I have a potteron gold HE Condensing combi boiler, hot water circuit is fine, but C/H working pressure starts off at 1bar but quickly rises to 3 bar plus, any ideas what would cause this?
Many thanks.
Valliant ecotec plus 838 it has an issue with the digital gauge showing 0.00,and the pressure it just will not pressurise to 1.5 bar .
Analogue display shows reading of 1.5bar.
What can I do
Thanks
Are you likely to be doing a video soon on the Nissan electric van or another one on the model 3 Tesla?
What area do you live? If you are not too far i will come and show you one of them
@@AllenHart999 Thanks for the offer but I’m all the way over in Nottingham I’ve had an ENV 200 for over 4 years and has been great as a work van. It would be good for you to do a video on it because so many installers say no to them without giving them a try. I’ve got a reservation on a cyber truck for my next one 🤞
Hi Alan could we have some commercial and forced draught training please ? thanks
Super video. Would like to know what the future holds for gas engineers in your opinion or based on news. Do you see hydrogen replacing gas or moving away from fossil fuels all together. What do you see the future looking like for a gas engineer.
There is no gas installions after 2025 in Ireland
SIR Adil-a-lot.
I personally think Hydrogen/Natural gas mix and Hydrogen will be the next big thing for domestic boilers, the reason being there are millions of boilers which will need replacing within the next 10-12 years that are located in properties where renewable technologies just aren't an option. Plus companies like Baxi and Worcester wouldn't have invested the money they have developing Hydrogen boilers if they didn't think they would be viable.
@@royfugler9971 Air to hot water or Electric Boilers,the work will be in de commissioning
Love you Allen whats the candlelighters link again please good Sir
www.justgiving.com/fundraising/cchleeds?
Good morning is there any corses in french or any documents thanks
Hi my name Clinton I need to talk to one of your experts about gas boilers that are use to build steam. But its a ver big scale
Please explain the sequence of events on a back boiler.
Thats very simple and easy, i will try and do one when i go to viva.
Thanks sir but I need total cuntrol wiring for boiler. Please.
Watched
Thank You
Gas rate on all domestic gas meter.
Alan , do you still have that Facebook page ? Gas chat
I am one of the admins on gas chat yes.
Anyone need to complete their portfolio in London area? INBOX PLEASE !
Savage bro no gas installions in Ireland after 2025 only. Air to hot water pumps 🤦♂️
The man who asks the question is a fool for a minute. The man who doesn't ask the qurlestion is a fool for a lifetime.