I've seen a few where the flue sensor connectors have corrosion on them and broken the safety circuit and even the odd one where the connector has dropped off completely due to corrosion. Also..a bit off topic, if the upper "dry fire" sensor is doing its job, why do the heat exchangers ripple ? I've always thought that was caused by a chronic overheat condition through low or congested flow through the Hex creating hot spots. Great Video, and your drawings explain things so well.
It’s low voltage but I wouldn’t bother testing the voltage. I should have explained in the video to test the circuit with continuity.ohms. Remove the harness from the board, put your meter on both ends and test continuity through it. If it’s less than 1 ohm then the circuit is intact. If not then you must determine which component is the issue? Hope that helps
Kevin I have a question for you. On the newer generation of ideal boilers I am finding that the min AND max co2 readings are often about 1% below what ideal state on the MIs. Seals, traps and heat exchanges all seem fine. Even brand new boilers I've found this. No ignition issues or poor Co readings just slightly low co2. Should I be replacing these gas valves as they are not adjustable? And why might I be finding this so often?
The reading is what it is. As long as they are not way out and are working fine then it’s o.k. So many factors will cause different readings. Flue length. Air temperature etc etc. don’t worry about it as they don’t have to be exact. 1% is fine.
Hi Kevin We have 3 sites with the 4000s been installed Not sure where you're based but if you're anywhere near Rochdale, Manchester or Liverpool I should be able to get you on site
I’m in Morecambe. That’s a nice offer but I’m not sure Worcester would take too kindly to me taking a boiler apart which is brand new and under warranty. I may have something in the pipeline hopefully. No pun intended
@@kevincranfield5235 no problem Although if we don't show the serial number or address they would never know And if I saves their engineers been called out to a defect because you've shown folks how to sort it, then it's a win, win
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Top job Kevin, every day is a school day, love it. Thank you for sharing your invaluable knowledge,
Love these vids from Kevin.. his depth of detail is amazing
Thanks Kevin for the tips . These are gold dust .👌🏼
Need more videos from you Kev.. you're on another level
Great explanation Kevin , this exact scenario caught me out many years ago not knowing the aps was opposite to a normal one....
Top man.... 👍
Allen, can you create a playlist with Kevin’s vids, please?
Nice one Kev,welcome back.
I've seen a few where the flue sensor connectors have corrosion on them and broken the safety circuit and even the odd one where the connector has dropped off completely due to corrosion. Also..a bit off topic, if the upper "dry fire" sensor is doing its job, why do the heat exchangers ripple ? I've always thought that was caused by a chronic overheat condition through low or congested flow through the Hex creating hot spots. Great Video, and your drawings explain things so well.
Brilliant video and explanation
Great video Kevin, what voltage are we looking for going through these safety devices
It’s low voltage but I wouldn’t bother testing the voltage. I should have explained in the video to test the circuit with continuity.ohms. Remove the harness from the board, put your meter on both ends and test continuity through it. If it’s less than 1 ohm then the circuit is intact. If not then you must determine which component is the issue? Hope that helps
@@kevincranfield5235 thanks for the reply, well explained👍🏻
Kevin is the boss bro . So greatly appreciate this dude, man
Great to hear his logic on boilers
Kevin I have a question for you. On the newer generation of ideal boilers I am finding that the min AND max co2 readings are often about 1% below what ideal state on the MIs. Seals, traps and heat exchanges all seem fine. Even brand new boilers I've found this. No ignition issues or poor Co readings just slightly low co2. Should I be replacing these gas valves as they are not adjustable? And why might I be finding this so often?
The reading is what it is. As long as they are not way out and are working fine then it’s o.k. So many factors will cause different readings. Flue length. Air temperature etc etc. don’t worry about it as they don’t have to be exact. 1% is fine.
Thanks Kevin really appreciate you getting back to me
Should of being an artist with them diagrams 😀
Hi Kevin
We have 3 sites with the 4000s been installed
Not sure where you're based but if you're anywhere near Rochdale, Manchester or Liverpool I should be able to get you on site
I’m in Morecambe. That’s a nice offer but I’m not sure Worcester would take too kindly to me taking a boiler apart which is brand new and under warranty. I may have something in the pipeline hopefully. No pun intended
@@kevincranfield5235 no problem
Although if we don't show the serial number or address they would never know
And if I saves their engineers been called out to a defect because you've shown folks how to sort it, then it's a win, win
Thanks you 2 👍
Fell asleep after 2 minutes. You need to work on your teaching skills.
Awesome video many thanks for your efforts 👍🙂