How to test a Fan in a Gas Boiler. Gas Training how to test a fan is a gas combi boiler. Boiler repair training. Ideal logic boiler faults. #Plumber #Gas-Engineer
Пікірлер: 242
@shaundavey11703 жыл бұрын
Over the last 16 years I have been on Vaillant, Worcester ,Ferroli, and Baxi training courses. Although I have learnt something every time there are always engineers at different stages of knowledge, so you never seem to get to the technical end of the fault finding. IE testing the different gas valves,fans, pumps, pcb’s relay’s capacitors and so on. We have to try and diagnose faults on all make and models, which is sometimes frustrating and can be costly when making a wrong decision. I probably have a £1000 worth of parts in my cupboard that I diagnosed wrong over the years (I’m not to proud to admit that). These videos have been a god send. it’s much easier when you see the videos rather than reading from the manuals. Not sure how you find the time but thank you Alan, ideal engineer, heating geek, tomcat and all the other engineers that I have found on u tube willing to share there knowledge. As you have said in the past Alan, it’s a lonely trade fault finding. sometimes very rewarding and a nightmare on others. Shame these ideal videos are coming to an end. .
@AllenHart9993 жыл бұрын
Thank You
@stewartharrod17062 жыл бұрын
So true - fantastic video that really helps you understand the electronic and mechanical workings 💪
@deepakparmar27172 жыл бұрын
Thanks 🙏🏻
@johnburns40173 жыл бұрын
Thanks. Just to add some value, as many are confused by the zero/negative pressure gas valves. A *zero/negative pressure* gas valve. When the outlet of the gas valve is at atmospheric pressure it is *off* - no gas passes through. When pressure at the outlet is detected that is below atmospheric, it opens. The valve does this by sensing pressures - mechanically, not electrically. The fan creates that negative pressure on its negative (inlet) side. The other side of the fan is positive pressure. Well actually it is a _compressor,_ as it compresses premixed gas and air sending it to a burner, but manufacturers retain the name fan. The more the pressure is _negative,_ (the faster the compressor turns) the more the gas valve opens allowing more gas to pass through the valve into the mixing chamber, mixing with air, then to the burner. It *must* sense a _negative_ pressure before it can open. So, the faster the fan turns the more gas is drawn into the mixing chamber, as the more the gas valve opens. This gradual opening of the gas valve is all by pressure on its outlet port, not electrics. There are no electrical proving switches to detect the compressor (fan) is operating. The negative pressure on the outlet of the gas valve proves that the combustion fan is running, so no electrical _fan switches_ are needed. The gas valve contains an electric solenoid to ensure the gas is permanently off when the compressor (fan) is not turning. Usually in the centre of the air entry port of the compressor (fan) is a small venturi just above the gas valve, so the effect of the rushing air sucks gas from the gas valve which is mixed with air in the mixing chamber just before the compressor (fan). The mix is not a perfect air-gas mix (stoichiometric), have excess air to prevent sooting. The gas-air ratio is normally adjusted in the gas valve, so more or less gas is sucked by this venturi effect, making the air/gas mix richer or leaner. Most manufacturers just ask for the CO2 in the flue gasses to be checked then the air/gas ratio adjusted to achieve specification - which is different for all manufacturers. Some ask for you to set fan speeds with some asking to monitor differential pressure and additionally at the same time check CO2 for both max and min settings. Some manufacturers are confident that they have set it all correctly as it left the factory and don't even want it monitored. But the main principle is that the venturi effect at the inlet of the compressor (fan) ensures a slightly leaner than stoichiometric mix. So, the burner is fed a stoichiometric mix which is ignited as it is blasted into the combustion chamber. The speed of the compressor (fan) essentially determines the size of the flame - the higher the speed the more gas is sucked in to be premixed. The lower the speed the less gas is drawn in. This is full burner modulation. Makers have been R&Ding the variables in all this setup having some compressors (fans), gas valves, and burners sucking a very low volume of gas, allowing boilers to modulate at lower kW rates.
@1Monaghan3 жыл бұрын
There’s something about learning from guys who are actually on the job rather than a training centre that makes it more realistic. The mix of both types of videos help so much. Thanks mr ideal. Hopefully you reconsider.
@AllenHart9993 жыл бұрын
Thank You
@williamhopehogson59273 жыл бұрын
He's missed his way. A natural teacher. It's a gift. Thanks so much for making it so easy to grasp.
@patg43623 жыл бұрын
Very well explained shame it’s going to be your last video Thank you for your input
@AllenHart9993 жыл бұрын
Thanks.
@keithbrueton3 жыл бұрын
Thanks for the time you've put into the channel Mr Ideal
@AllenHart9993 жыл бұрын
Thanks.
@955trainboy2 жыл бұрын
Thank you. A good explanation of PWM. You say your not a trainer, well my friend I have news for you. You ARE a trainer.
@shannonharris71263 жыл бұрын
Thanks “Mr ideal man” and Alan.sharing your knowledge is a great power,power for the good👍
@AllenHart9993 жыл бұрын
Thank You
@neiljones90053 жыл бұрын
Brilliant this guy is better than any trainer because he’s out there
@alisonsimmonds92393 жыл бұрын
One of the best videos I have seen, we need more of this more advanced testing. Thank you
@AllenHart9993 жыл бұрын
Mr Ideal is an amazing trainer. Thanks.
@johmcinally35213 жыл бұрын
Best description I have heard of PWM fan control.
@leejones65793 жыл бұрын
Thanks for all you're time ,and passing on your knowledge on boiler much appreciated 👍 👏
@helendavies9233 жыл бұрын
Mr Ideal, Thank you so much for this video and for clearly explaining how PWM controls the fan and pump speeds. Your job title may not include the word 'trainer' but you are a great teacher. Thank you again.
@michaelorourke39973 жыл бұрын
I could listen to Mr. Ideal all day, what a wealth of knowledge. I don't think Roy would mind sharing the stage with Mr. Ideal, I actually think it would benefit us more. Roy doing the Baxi and Mr. Ideal doing the Ideal. That's sorted then, looking forward to your next video Mr. Ideal.
@AllenHart9993 жыл бұрын
We have room for everyone on here. No problem at all. Thanks.
@jamesweston24373 жыл бұрын
Thanks so much, fantastic advice that is very hard to get in this much detail. Shame it’s your last video, thanks again.
@AllenHart9993 жыл бұрын
He is back kzfaq.info/get/bejne/nbeYl72hs5O4ip8.html
@kpereira89102 жыл бұрын
Thank you Mr.Ideal man and Mr. Allen Hart. Highly appreciate what y'all doing here. thanks again.
@kevj19643 жыл бұрын
Such a Shame his video's were brilliant, so informative. Cheers Mr Ideal.
@AllenHart9993 жыл бұрын
Thank You
@rajeshbangera61493 жыл бұрын
Thank you for the video. It is very helpful for trainees like us when we come across fan issues. Really appreciate. Cheers
@gasfitter783 жыл бұрын
Thank you Mr ideal. Allen could you pass on my appreciation for what he's done.
@AllenHart9993 жыл бұрын
Thank You
@kevinbrown60662 жыл бұрын
Alan I have only just seen this 🙄 a big thank you to Ideal Man.
@AllenHart9992 жыл бұрын
Thanks very much for your comment, please consider subscribing to support the channel 🙂
@desdiamond57003 жыл бұрын
Very well explained, on a difficult part to diagnose. Brilliant video by Mr Ideal.👍
@AllenHart9993 жыл бұрын
Thank You
@gregmartin3523 жыл бұрын
Thanks Mr Ideal. Great video. Always good to see how other engineers work.
@xenu-dark-tony2 жыл бұрын
Allen, you are a very rare person in that you explain things really clearly and don't confuse the novice engineer. I have just learnt from you PWM - an acronym I knew the wording of from my solar panel mucking about but had no idea what it meant technically. If you don't run a school for engineers then you really could, and it would be very successful. I paid £3000 for a Gas Safe course and it barely touched on the mechanics and fault finding of boilers, let alone such advanced stuff as PWM. Thank you SO much for your help.
@craigmcgregor54633 жыл бұрын
Personally like him and Roy. Would like to see more of his videos too. No harm in all the videos. Really enjoy them all and some helpful material. Hopefully he continues to do them. It's appreciated. Thanks everyone.
@AllenHart9993 жыл бұрын
They are both amazing. Thanks.
@andyjones78363 жыл бұрын
A very good video, which completely discribes how the fan is controlled, we will miss you Mr Ideal man....... unless🤔🤔🤔🤔
@AllenHart9993 жыл бұрын
Thank You
@geoffersgra5 ай бұрын
Excellent video. So informative & defo a great help. Never too old to learn something new
@abubhakar1661 Жыл бұрын
just watched this video, on 1st January 2023, happy new year all, and Allen, your doing a fab job and thank you to the gentleman that made this video, it was really good and helped me understand better about how a positive fan pressure zero governer works to push the air/gas ration into the heat exchanger and how the pwm plays its part in modulating. god bless you all !!
@JDBpast2 жыл бұрын
Great video. You explained everything loud and clear! Thank you!
@markbrown35353 жыл бұрын
Great video straight forward on the tools training .. shame it's the last one .. Helped me out on the ideal boilers testing fans the right way .. Thanks Mr Ideal
@tomsewell32103 жыл бұрын
Thanks for your videos Mr Ideal man, they are invaluable when faced with boiler issues. Also cheers again to Allen for the channel!
@AllenHart9993 жыл бұрын
Thank You
@jayhambleton58343 жыл бұрын
Mr ideal man your videos have got to be best on this channel. Helped me loads so thanks from me. Hopefully see some more from you in future. Allen great content mate, keeps getting better and better. Thanks mate
@jamesculligan8622 жыл бұрын
Mr.Ideal thank you for your videos I hope you reconsider and keep posting because they are the best I've watched.
@robertwhite49193 жыл бұрын
Mr Ideal, thanks for the video's, you shouldn't worry about not being a trainer, you got the information across well, it's not easy making videos I wouldn't know were to start. It's always good to someone else explanation of how things work, field experience is always good to pass on especially to those of us that don't get to work on may of these boilers .thanks again
@AllenHart9993 жыл бұрын
Thanks.
@millerstefan21372 жыл бұрын
You all probably dont give a damn but does anybody know a trick to log back into an instagram account..? I was dumb forgot my login password. I would love any help you can offer me.
@millerstefan21372 жыл бұрын
@Melvin Reuben i really appreciate your reply. I got to the site on google and I'm trying it out atm. Looks like it's gonna take quite some time so I will get back to you later when my account password hopefully is recovered.
@millerstefan21372 жыл бұрын
@Melvin Reuben It did the trick and I actually got access to my account again. Im so happy:D Thank you so much, you really help me out!
@melvinreuben192 жыл бұрын
@Miller Stefan you are welcome :)
@micmac69 Жыл бұрын
Just found this video. Really appreciate your time and explanations. A good enginerer should never stop learning an i'm 61 now!!
@jackhoskins7223 жыл бұрын
Really appreciate your videos mr ideal I work on these boilers everyday so the testing you do is brilliant and really helps hopefully you can change your mind and make more videos
@AllenHart9993 жыл бұрын
Thank You
@666johns3 жыл бұрын
Thank you Mr Ideal for making life easier.
@AllenHart9993 жыл бұрын
Thanks
@julianhawker76723 жыл бұрын
Thankyou Mr Ideal for all your time ,effort and really informative videos. I wouldn't worry about the fact that your not a trainer, your videos are easily as good as anything I have ever had on any manufacturers training day, hope you reconsider at some point. Cheers. :-)
@AllenHart9993 жыл бұрын
Thank You
@alryan372 жыл бұрын
Excellent video, told in layman's terms. easy to digest information.
@farhanbutt59477 ай бұрын
Thank you mr. Ideal and thank you Allen This channel is the best on KZfaq for newly people in the industry Appreciate 🙏🏻
@rohanhughes36833 жыл бұрын
Am new to the gas industry and these videos really help me. Thank you
@AllenHart9993 жыл бұрын
Thank You
@Aw4ken3d3 жыл бұрын
So freakin understundable, big respect.
@paulharry3221 Жыл бұрын
Thanks for sharing your experience. Its appreciated.
@AllenHart999 Жыл бұрын
Happy New Year
@Thegasman4143 жыл бұрын
Love the video guys, brilliant job ideal guy 🙏🏻🙏🏻
@RobertBacon4703 жыл бұрын
Mr Ideal thanks for sharing your knowledge great video very well explained I agree Roys agreat trainer but I believe you are also gifted in sharing your obvoius skill and experience, I wish you good health for the future thank you once again also thanks Allen for providing the platform for this to happen all the best Rob
@marksenior11793 жыл бұрын
Thanks for such an in depth video, just Ideal.
@AllenHart9993 жыл бұрын
Thank You
@harbydhillon65093 жыл бұрын
Great video. Constantly learning. Thank you.
@AllenHart9993 жыл бұрын
Thank You
@johngrimes48483 жыл бұрын
Thanks lads, new to the gas side and found video helpful😉😉
@Sarries-fh7ri3 жыл бұрын
Mr ideal, thank you so much for the information you have shared it’s been very much appreciated. Top man. I mainly work on Baxi and vaillants but the contract I’m working on they have started fitting logic combi c30’s so it’s a good heads up on how to check bits in the future. Again thank you and all the best👍
@AllenHart9993 жыл бұрын
Thank You
@tjrugette6884 Жыл бұрын
Thank you so much gents, please keep it going 🙏
@grahammclelland50662 жыл бұрын
Thanks very much! Useful stuff!!
@melvinevans99813 жыл бұрын
Thanks for your great videos mate wish that guy the best I spotted some of his videos and he might say he's not a trainer but have learnt so much on testing ideal boilers What a great human being and a credit to the gas game Make sure you take him for a pint when the jailer frees us from lockdown 🖖
@AllenHart9993 жыл бұрын
Thank You
@georgerobinson5763 жыл бұрын
Thats great, its a good help for me ,working on these boilers alot im diffinetly gonna have a look next time im servicing one. but a big thanks to you for you time
@AllenHart9993 жыл бұрын
Thank You
@johnmoore35692 жыл бұрын
Good video, like having operational engineers viewpoint as you are sharing your experience, not just focussing on the topic and those additional background comments are full of information.
@petercarter98663 жыл бұрын
Really interesting never knew what signal was or how to test thanks MR ideal
@Ttrruussttggoodd2 жыл бұрын
Your a great engineer thank you , very informative , sorry to see you go mate , good luck with the future my friend
@TheDickPuller3 жыл бұрын
Absolutely amazingly good content & presentation. With very limited insight or videos on modern boilers PWM available, this is one of the best👍👍 With the limited time & so much to cover it is tough. It would’ve been good if there was more time to cover the Fan PCB Halls sensor & some details of the fan’s On-board components. Thanks Mr Ideal & thanks Allen.
@AllenHart9993 жыл бұрын
Thank You
@peterdaly99892 жыл бұрын
Great video very informative, thank you!!
@gokulpatel80013 жыл бұрын
Hi It was good video with important and logical information. Surely helped me to understand the fan operation for condensing boilers. Thanks.
@AllenHart9993 жыл бұрын
Thank You
@russellproctor20613 жыл бұрын
Thanks for your top tips helped me loads
@AllenHart9993 жыл бұрын
Thank You
@amarkhan38673 жыл бұрын
Fantastic thank you for sharing. Actually something which will be useful to all. Its takes a lot of time to put these videos together therefore thank you for making the time and educating us all. Amazing stuff and actually well put together to Mr Ideal.
@AllenHart9993 жыл бұрын
Thanks.
@ivangoodall1 Жыл бұрын
Mr Ideal...genius....been looking for some videos like this for a long time. Sorry to hear your going, but thanks for your vids. If Allen or anyone else can point me in the right direction or provide links to watch more of your vids then I would be extremely grateful. All the best 👍
@davidbirri99473 жыл бұрын
Excellent video,learnt a lot....
@henrybartlett19862 жыл бұрын
Very useful. Many thanks.
@wahabtahir91433 жыл бұрын
It’s amazing and very informative video. I hope you will bring more videos like this. Thanks for making this video.
@AllenHart9993 жыл бұрын
kzfaq.info/get/bejne/nbeYl72hs5O4ip8.html
@kevinwright16893 жыл бұрын
Thanks very much for the information
@paulbrown10793 жыл бұрын
Great video good luck for the future
@liamcuzzy3 жыл бұрын
Top top video! One of the best on the channel!
@AllenHart9993 жыл бұрын
Thank You
@plumbertales87723 жыл бұрын
Sorry to see you go mate I think it’s good to see other engineers take on boilers, I’ve sent some in to Allen but obviously no where near the level you are, they are very informative and have helped me immensely 👍🏻
@markplampton7539 Жыл бұрын
Excellent and very well explained
@davidhouston22577 ай бұрын
Thank you mate that was really helpfull
@rabiebhoy9248 ай бұрын
Massive help to understand Thank you Mr Ideal
@AllenHart9998 ай бұрын
Glad to hear that!
@AllenHart9998 ай бұрын
Thanks very much for your comment, please consider subscribing to support the channel 🙂
@timhancock66262 жыл бұрын
The fan on my own Logic Heat 18 sometimes whistles, and sometimes doesn't. Since I put the Ideal weather comp kit on, it runs at lower demand and is quieter.....at least that's my impression. I've checked all the flue seals but have never got to the bottom of the whistling as it's borderline acceptable anyway. It's on now and not whistling...typical 😊 Many thanks Mr Ideal Engineer and best wishes to you.
@jonmay2892 жыл бұрын
Thanks for your videos, they really do help 👏👏 good luck for the future sir 🙏
@deanwilby7908 Жыл бұрын
Really good and helpful brilliant 👍
@anthonygaunt89742 жыл бұрын
Great teacher and remember every days a learning day🤗
@AllenHart9992 жыл бұрын
Thank You
@jameshawkins52803 жыл бұрын
Yes a real shame mr ideal was a great help shame the boiler manufacturers dont do more like this too help out the breakdown boys like myself as it's good to watch the videos a few time so it sinks in. Good luck and let's hope he returns at a later date .
@AllenHart9993 жыл бұрын
Thank You
@SproutyPottedPlant3 жыл бұрын
I love watching gas and HVACR videos 😀👍🌱 for interest and to learn how it works. I like that the board just sends the low voltage PWM signal and the fan does all the hard work,I guess that means less likely for PCB to break and suffer thermal stress!
@AllenHart9993 жыл бұрын
Thank You
@alivarol47003 жыл бұрын
Excellent trainer Should consider mate Thank you
@AllenHart9993 жыл бұрын
Absolutely
@k.l75242 жыл бұрын
First class Thank you
@peteobrien76143 жыл бұрын
Mr. Ideal Man that was a very informative video. 👍
@AllenHart9993 жыл бұрын
Thank You
@jamesknowles550 Жыл бұрын
Hi -- thanks for your top videos -- iv'e been a gas engineer for 47 years and been to many Ideal Logics + many other condenscing boilers with fan problems + but to be honest iv'e never fully undertood the wireing to the fans -- i've always known there was a permanent 240 volt ac supply + a pcb on the fan but not known the voltages of the dc wires -- one thing i've known + other engineers too is be careful when you diconnect the fan on removal when servicing -- coz a few times when its been reconnected its blown when re -testing the boiler !! -- and thats been with always dis-connecting with the power fully off to the boiler ! -- i think its better trying to remove the fan with the 240 vlt permanent supply still connected !! -- i know care is needed . but the wires are normally long enough to remove it still connected -- thanks for shareing your knowledge -- JIM
@stefano88093 жыл бұрын
Really useful. Thanks
@rayc15033 жыл бұрын
Thumbs up before I've watched. Excellent tutorial guys 👍. We'll be sad to see Mr ideal go.
@AllenHart9993 жыл бұрын
Thanks.
@davidmarsden88683 жыл бұрын
Well done that man
@ashokrawal38203 жыл бұрын
Great Knowledgeable video. Thank you very much sir. Regards 👍🌹
@AllenHart9993 жыл бұрын
Thanks
@ravindersidhu9417 Жыл бұрын
Done well good job good luck R.sidhu
@AllenHart9998 ай бұрын
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@WEYHARRY1 Жыл бұрын
Very informative thankyou
@faridratni67992 жыл бұрын
Excellent video Thanks
@AllenHart9992 жыл бұрын
Thank You
@marka47063 жыл бұрын
thanku for your time mr ideal engineer
@AllenHart9993 жыл бұрын
Thank You
@john-paulcox9183 жыл бұрын
Another great video .
@AllenHart9993 жыл бұрын
Glad you enjoyed it
@mobou62983 жыл бұрын
Thank u, MrIdeal!!!
@abdulh632 жыл бұрын
great video!
@AllenHart9992 жыл бұрын
Thanks very much for your comment, please consider subscribing to support the channel 🙂
@jamesphelan95883 жыл бұрын
Thanks for the videos ideal man
@AllenHart9993 жыл бұрын
Thanks.
@tonywardell34113 жыл бұрын
Brilliant video very informative 👏👏👏
@AllenHart9993 жыл бұрын
Thank You
@cowasakiElectronics Жыл бұрын
Thank you very much. I am an electrician but I don’t know about boilers, more computers and valve amplifiers. Just watched your video and having noted what each connector was took them off and cleaned them. My boiler now works again. Although I think my pocket wishes it was still faulty! Anyway thanks again. Oh well. It worked till I turned off the hit tap. When I turned it on again it failed again. The fan shudders for a second when powered on.
@kevincranfield5235 Жыл бұрын
The Hall effect sensor on the fan has failed unfortunately
@hazelbulgin6383 жыл бұрын
Great video lots of good information 👍
@AllenHart9993 жыл бұрын
Thank You
@daleatkinson79013 жыл бұрын
Great video 👊🏼
@AllenHart9993 жыл бұрын
Thank You
@Skeletoncrew46and22 жыл бұрын
Great video
@AllenHart9992 жыл бұрын
Thank You
@paulsmith29313 жыл бұрын
Great video, need to write all this info down now though, memories not so good now days
@AllenHart9993 жыл бұрын
Thank You
@darrenbarry48073 жыл бұрын
Maybe Mr Ideal could do occasional videos as it’s great to get onsite real world information warts and all.