Immersion Heaters - How they work, fault finding & testing
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- Опубликовано: 7 июн 2024
- A typical immersion heater, how it works and how to test it.
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Love the way emphasis is made on the last word of every SENTANCE!
Now I can't unhear it lol
What he said !
Definitely some sort of police/army background methinks
Very TRUE!
Oh gosh thanks for pointing that out now I can't ignore it 🤣
Just wanted to say thank you. Excellent, methodical presentation. Instilled confidence. Tested and replaced a failed thermostat after watching. Kudos.
Thank you for saving my family an expensive repair bill. By following your video i confirmed my heater and thermostat were fine. I replaced the separate controller box which was under warranty still, and got the system working again! Good info thank you.
Thank you John ! - My boiler is on the blink, and what a bad time to find out that the immersion heater doesn't work either ! By following your clear instructions I was able to diagnose a faulty thermostat and fit a replacement. Now we have hot water again. Again a thousand thank you's.
Huge thanks to John Ward for this video - I have just tested my immersion thermostat and found defective, so have bought a replacement and fitted without trouble. Probably saved £70+ plus many days waiting for a plumber. Brilliant !!!!
Thank you for this, I just found the fault with our Emerson Heater...... The Thermostat had failed and following your video, it was quickly found and fixed with an exchange thermostat... Thank you so much..... Keep up these awesomely informative videos
John I was very pleased to see your vlog.
My immersion heater stopped working.
I called out a plumber who advertised " no call out fee"
He arrived with clip board in hand. I point out the tank.
and he bent down to feel for a drain tap. Then he opened up his clip board and wanted my signature on a work sheet to agree to pay £125 per hour.
Wow ! I backed off.
Saying how long to fix the problems
2 hrs !
No I said I cannot afford £200 .
Sent away I found one of your volgs John
And re set the thermostat reset button
It sprung back to life.
Excellent presentation and just what I needed. So much better than the normal quick-fire videos from many on here. Thank you.
thank you very much. I am a spanish-french spark ( chispas) triying to understand the domestic ( and commercial) systems and different ways of wiring here( very different).I used to do commercial in france so I am a bit lost some times when we have to rush ( always unfortunately). When I came across a british electrician trying to reset to the french systems I would always offer my help and give him my phone since I speak english.
I have been following your videos for three years now. Happy new year.
The differences and similarities between commercial/domestic systems throughout the world as well as the laws are interesting.
Thank you John. Very comprehensive. You've left no stone unturned.
This is a superb video, thanks! I'm an electrician and due to my ignorance about how these things are put together I simply referred a job to a plumber I could have diagnosed and, almost certainly, fixed myself. Wonderful video.
Excellent video. One of the best I have seen on You Tube. Anyone who thinks this is boring probably knows it all anyway. I knew how these work but didn't know about the reset buttons. I will be checking mine out tomorrow, No hot water. Thank you.
Many , many thanks to you ,Mr John Ward.I followed your crystal clear instructions and managed to replace the faulty thermostat in my immersion heater.Thanks for explaining about the reset button.The new thermostat i have used has got the reset button on it..
You are the main man John. You have a great grasp of the subject. I find all of your videos impart massive amounts of understandable information. Thanks for your contributions in helping normal householders understand there home systems and keep the sharks away.
Thanks JW.
Im normaly only a car repair/diagnostic video watcher as im a mechanic by trade but if i need any plumbing sorted your my 1st port of call for imformation... Since watching your videos it has allowed me to change central heating parts, understand system operation and fault find when things go wrong..
Keep up the good work
All tutorials should be like this, good on you for taking the time and energy to educate the masses.
We've got a solar thermal HW system, augmented by immersion heater & oil fired boiler. The immersion failed to heat the water yesterday. I wrongly assumed the immersion thermostat and/or heating coil had failed and was about to replace both; however your excellent presentation and detailed explanation saved me a lot of time and expense. Cause: On a sunny day a week ago, solar had pushed the tank temp up to > 90 C causing the immersion safety cut-out to trip. Solution: Press the little red immersion thermostat 'reset' button, and reduce the the solar thermostat max temp setting to 70 C to prevent future problems. Thanks a million for a really helpful video!!
Amazing channel. Got to a job this morning and this video was exactly what I needed to know how to test the immersion.
Thank you, you just helped me big time
You are a star John. Your video has just saved me a lot of hassle. Thanks fella!
What a brilliant video, gave me just the confidence I needed to sort out my own immersion heater and you delivery made me smile all the way through.. Thank you!
Thanks for the detailed explanation. Had an issue with our gas boiler and turned the immersion heater on, but no hot water. Checked the reset switch and it has indeed popped out, pushed it back in and we are in business! Thanks again
Mate, thanks so much for all of your vids. Just bought my first house and have been renting all my life. Now i have to know all this! Thanks!
I don't usually comment on videos but this was one of the most insightful videos I've ever watched👌👌👌
Excellent video. Saved myself an expensive call out by resetting the thermostat. Thank you!
Thanks to this video 1 year of sitting with no hot water i got my meter changed to a monthly pay meter and its never worked since then and thought it was something to do with that however after watching this video i isolated the switch and ensured there was no power to the house and pressed the reset switch on the thermistat and yippeee its now working again so not sure what the chap did when he was changing our meter but may have tripped it anyways Thank you what got me worryed was your comment regarding the diseases relising that my hotwater taps do still give out water from that tap at normal temps so i have kids and dont want them washing there hands with that water or even worse drinking it! plus added benifit back to warm baths showers are great but just dont do it some times So happy
Best video on RUclips about immersion... and I've watched a few of them. Well done 👏
Thanks for making this video. I was able to fault find a problem with the thermostat and fix it rather than have to get a plumber to replace the whole immersion heater. A big thumbs up!
Really clear and informative tutorial. Completely understood and went through the steps and managed to locate the problem and fix it. I never comment but this was a very good video.
Very helpful, Thank you. Did not know you could just take out the thermostat that easy. Thanks for the video !
Thank you, this just saved me changingthe whole immersion heater, the fault was in the thermostat.
JW. You are an absolute legend! Thanks.
very professional and useful video.I fixed my boiler after watching ur video. thank you very much
Another concise professional explanation John, many thanks
Excellent video, many thanks John for this - really useful.
absolutely brilliantly presented, step by step leaving me totally confident to do it all.
Thanks John, for sharing this video of immersion heater testing.
Another immersive explanation JW thank you!
Thank you John for taking the time to do these videos. I learnt a lot from the swa cable assembly video because your presentation is so good....Merry xmas to you and your family
Excellent explanation. Helped me identify and resolve a problem with my immersion. Thank you
absolutely brilliant video.
I've watched a lot of your videos and I have learnt a-lot, so I have to say thank you for your knowledge. great videos as always.
Very detailed and clear, have you worked on tv, perfect for tomorrow's world back in the day!
Very clear video - thanks .. I've just invested in my first multi-meter! .. identified immersion ok and thermostat shot.. in the process of replacing the thermostat - cheers.
Thank you JW, another clear, and complete guide👍
Great, you've explained it very well. Appreciation. Well done
Great video John, I would never have thought of IR testing the element. 👍
Excellent explanation as usual John
That was so clear and helpful. Thank you very much. I have hot water again!
Thanks, great presentation. Lots of valuable info.
Always interesting seeing differences in electrical practice between US and UK.
In the US larger tanks have two heating elements that are switched so only one is on at a time. Typical element rating is 3800 - 5500 watts. Lower element is normally rated at higher wattage. Interestingly in the US the heating element, thermostat and over tempt safety are separate devices located are under removable insulated panels to reduce standby heat loss. The heating element screws into the tank and the thermostats and over temp are held in contact with the tank with a spring clip.
As with the UK due to the high power water heaters operate at 240 volts.
Brilliant video, I will go check my mums immersion heater right now
Thank you for explaining where to find the Re-set button on older models just after 9:00 mins in!
That was perfect explanation. Thank you for this masterpiece
Another informative and excellently presentation. Well done John Ward
Very informative as usual from you John , thanks
Hi John,
Just a little thank you in your explanations. You would be a top lecturer I'm sure if your not already one.
Great video. Very informative. Thanks for showing.
You are the best! Very professional! Totally fav!
+John Smith. Another excellent video J.W. Thank you. In one school where I worked, the building had formerly been a large private residence. The hot water cylinder was replenished from a cold water cistern in the roof which was constructed on site from a lead-lined wooden carcase. You could almost swim in it.The Health and Safety team came one day to do a routine check on the system and then suddenly the whole system was being replaced.The reason? Well not so much we were being slowly poisoned by the lead (don't fill the kettle from the hot tap!), but the inspectors found the remains of two dead pigeons floating in the uncovered cistern.Never seen the council move so fast in all my life!
Many thanks John, your videos are excellent.
Excellent video , clear concise and helpful
An excellent and helpful video. Thanks for posting
Thank you John. Excellent as ever.
Top vid John. We would only ever use Backer branded ones, but its been some years now since I've had to change one thankfully.
Very helpful and clearly explained thank you.
Good video, well explained. Thanks! Your video helped me resolve my only warm water on newly installed system issue :).
An excellent and most informative video. Thank you.
Hi John, great video helped me out today 👍
Thanks a lot John...it is really very helpful ..thanks a lot again for sharing knowledge..
Excellent video, my girlfriend is having an issue where her cylinder isn’t heating up at night. Upon further inspection the Rod wasn’t actually wired in. I then did your tests and there was no resistance between earth and the terminal.
She then just used the boost function on thermostat and now that has packed in. Although that immersion rod seems fine…
Very informative & clear, may have to have a browse through your other vids
Breath of fresh air compared to the other moronic youtube channel trying to explain how this work, thank you for taking the time in making these videos,I found it concise in its description of all the failure modes
thanks for this . saved me time and money.
Excellent! Just what I needed to know. Thanks. My Eddi unit is heating the water too much and so the thermostat needs looking at!
Thanks John for a very helpful video you really made it easy to understand
Thank you for such an interesting informative video including the potential dangers of legionnaires disease. I might have set the heating lower thinking I was saving money and could have died!!! Great video, now to find my screw driver and fix my hot water problem..,. I love RUclips for learning things
Thank you! I thought I had a faulty element and thanks to your video I learned that I only had to press the "reset" button on the thermostat. I'll keep an eye on it but I won't be having to replace the whole element! :D
It will probably trip again and again - it's only there for when the main thermostat fails and the water gets too hot, so a new thermostat is almost inevitable.
Always very informative John!
Keep up the good work and save the amateur bodgers from killing themselves.
Must get myself a Fluke 1653 ...nope just checked the price £320 wow!
Many thanks for the great explanation.
Excellent video, sorted my problem, thanks
Brilliant! Just what I needed.
Being a kid growing up in the 80s and living in a house containing an immersion heater, I really don't miss the days of coming back from a holiday and having to "put the immersion on" for an hour or two before being able to have a bath. And the terror of "running out of hot water".
@James Grimwood when I was growing up we didn’t even have immersion heaters, if we did my parents never used it. We had a fire in the kitchen that used to heat up the water so our house was always freezing cold (no radiators or storage heaters just real fires in downstairs only. I used to dread going home even from school as you knew how cold the house would be. We used to have to put on our coats when leaving the living room to go to the toilet in the house!!!! I don’t miss those days. Rich people have no idea what it’s like growing up poor!!!!!!!!
@@debbiesaunders1815 well rich people are rich for a reason.
Excellent, as usual. Thank you.
brilliant and clear as always,thanks
Great video, good info thanks. And I like the multi meter, not seen one of thought since they took mine away and replaced it with something that doesn't work.
Very clearly explained. excellent video
very informative and well presented - thank you
Thanks for sharing...brilliantly explained
Thank you John, very informative
useful video. pressing reset button made my heater work again :) :)
very very useful !
thank you very much John.
excellent, clear video. Many thnaks
Cheers John, on checking my thermostat of 70's vintage, it didn't t have a safety cut out. Immersion heater is connected to my new solar panels and excess electricity is routed to heat the domestic hot water. If we get a summer this year I can be safe in the knowledge that my cold water tank won't turn the top floor of our house into a impromptu scald-o-thon.
awesome informative video- thank-you
Thanks a lot John! Very helpful
Aaaah, very good. I once had a popped heater and just out of curiosity, I took it out in the back garden and _"Opened-It-Up-Very-Carefully"_ with a hacksaw and hammer so that the heating wire could be revealed inside. :-)
Yes, I did video it. Look for: *_"What's Inside? Immersion heater element, 240v, 3kW"_* and you'll see the vid on my channel.
I kept the section of heating wire and in a later video (with a ballasted variac mind you) I powered it up and used it as a foam cutter to cut pieces of polystyrene. :-)
Removing the section of heating wire was a challenge as I had to beat at the outer copper sheath to get the insulating agent out of there in order to release the heating wire. It didn't give up easily!
But then...... I wasn't having it! I wanted a bit of heating wire so that I could make a hot wire foam cutter. :D
Thanxx for showing,
-BoomBoxDeluxe.
_18th January 2016, 02.10_
I had a Backersafe Immersion Heater (3KW) that lasted 24 years using it every day for 2 hrs in softened water .. British Quality!
thanks just saved me a fortune!
thanks to you I've just solved an abysmally annoying problem with my hot water. thanks very much
Thx man, very useful. Much appreciate it 👍
GREAT video,thanks!!