Just a quick one that the symbol is not a "U", but the Greek letter "Mu" i.e. "μ" which is used to denote "Micro". F is the unit of capacitance. In the video 4 μF is 4 Micro Farads. The video is right not to use a different value capacitor as a replacement, but always check the motor identification plate for the correct value, as it wouldn't surprise me 8f a previous engineer has put a "near enough" one on as it was the only one in the van etc. You can put a higher volt rated capacitor on, but not the other way round. Wrt circuit boards, failures of electronic components is usually bad dried out electrolytic capacitors that affects the power supply or signal quality etc. I hope this helps. Keep up the good work Allen.
Nice one Alan and jules 👍 it’s one of my favourite breakdowns when you hear that motor humming, I’ve always got my fingers crossed capacitor please not motor or pump
When the installer fitted my Intergas combi a good few years ago, he insisted I change a switched 230v supply socket for a none switched one. When I asked him why, he said, I have got to pull the plug to make it safe and I know it's safe with that plug out. Switches fail and I don't trust just pulling a fuse from a fused outlet so a none switched socket, please. This was done and every year he comes to service the boiler, the plug is pulled for the internal cleaning, etc. It's great to see plumbers who do a good truthful job without trying to rip off their customers.
Should be a DP FCU fused spur with a 3 or 6A fuse. He then just switches off and removed the fuse to service. Three pin plugs on boilers are not recommended.
I always fit a fuse switch spur with a 3amp fuse. But Why not a 3 pin plug with a non switched socket as long as it has a 3 amp fuse? once u pull the plug out there’s not doubt it’s disconnected
@@rosstaylor4924 The socket can be used for other purposes by unknowing householders. Many boilers have their own mcb's at the consumer unit, as mine does at a 6A RCBO. Plugging say a 13A portable heater, because the boiler broke down will trip a 6A mcb or RCBO. ♦ Sockets are for _portable_ appliances; ♦ Fixed appliances, as is a boiler, should be fitted with _fixed_ electrical switching. You may find that a *DP* fused spur is a recommendation in British Standards. I recall seeing it somewhere. A double pole FCU is double pole, well all that I come across are. That means L & N are disconnected when off.
Another nice helpful informative video Allen,well done to you guys! when it said ‘capacitor testing’ I was expecting the capacitors on the circuit board of a boiler, I’ve done a few PCB repairs on boilers and it’s always a satisfying fix Why don’t you sell us the CCH radiator bleed keys? that should raise a lot of money for charity I’m sure all us fans would buy them. I will be more than happy to pay /donate £20 for one. Just a suggestion Allen
Something else to look for is what appears to be a sticky substance under the capacitor. I have been told this indicates that the capacitor is on its way out. It is something to show the customer and they usually ask for them to be changed. Hope this helps.
@@iancampbell582 I basically did the whole oil courses you can do other than vapourising burners. They just get you to learn operating sequences and regs etc. No fault finding
Hello sir I been looking to buy press gun for a while now after watching your video thank I can't decide between nova press 103 and Rothenberg Romax compact Like you said the not having a 360 head on the nova press it bit off putting They are both lots of money your guidendence will be much appreciated Thank you
If not having a multimeter with a μ farad range function, just a _very_ simple meter, then to see if the capacitor is working, just empty it of charge by shorting with the screwdriver as shown. Then turn the meter to the ohms range. This will charge up the capacitor from the multimeter's battery. A capacitor stores electrical charge (it is a battery). Then turn the meter to the DC voltage range to measure the volts. Put the probes on the terminal. If a reading then the capacitor is not duff. This does not mean the the correct micro farads, just that it is not duff, which is 95% of the problem with capacitors.
Ive been having lockout issues for months and cannot find the problem. I did the uf test and i have no reading, I did the test u mentioned and i am getting a reading, So my capacitor is completely duff?
Just a quick one that the symbol is not a "U", but the Greek letter "Mu" i.e. "μ" which is used to denote "Micro". F is the unit of capacitance. In the video 4 μF is 4 Micro Farads.
The video is right not to use a different value capacitor as a replacement, but always check the motor identification plate for the correct value, as it wouldn't surprise me 8f a previous engineer has put a "near enough" one on as it was the only one in the van etc.
You can put a higher volt rated capacitor on, but not the other way round.
Wrt circuit boards, failures of electronic components is usually bad dried out electrolytic capacitors that affects the power supply or signal quality etc.
I hope this helps.
Keep up the good work Allen.
It’s amazing how much I learn from this channel 😂 Thanks
@@AllenHart999 you're welcome 😀
Great comment. This is the kind of info that makes UA-cam such a great resource.
This is great. For someone is who is trying to fault find an ancient Firebird oil burner this is very timely and useful info.
Nice one Alan and jules 👍 it’s one of my favourite breakdowns when you hear that motor humming, I’ve always got my fingers crossed capacitor please not motor or pump
Rog Nevs Looking forward to more of these. Love them. Thanks so much.
Thanks Allen for the up load
When the installer fitted my Intergas combi a good few years ago, he insisted I change a switched 230v supply socket for a none switched one. When I asked him why, he said, I have got to pull the plug to make it safe and I know it's safe with that plug out. Switches fail and I don't trust just pulling a fuse from a fused outlet so a none switched socket, please. This was done and every year he comes to service the boiler, the plug is pulled for the internal cleaning, etc. It's great to see plumbers who do a good truthful job without trying to rip off their customers.
Should be a DP FCU fused spur with a 3 or 6A fuse. He then just switches off and removed the fuse to service. Three pin plugs on boilers are not recommended.
I always fit a fuse switch spur with a 3amp fuse.
But Why not a 3 pin plug with a non switched socket as long as it has a 3 amp fuse? once u pull the plug out there’s not doubt it’s disconnected
@@rosstaylor4924
The socket can be used for other purposes by unknowing householders. Many boilers have their own mcb's at the consumer unit, as mine does at a 6A RCBO. Plugging say a 13A portable heater, because the boiler broke down will trip a 6A mcb or RCBO.
♦ Sockets are for _portable_ appliances;
♦ Fixed appliances, as is a boiler, should be fitted with _fixed_ electrical switching.
You may find that a *DP* fused spur is a recommendation in British Standards. I recall seeing it somewhere. A double pole FCU is double pole, well all that I come across are. That means L & N are disconnected when off.
Another nice helpful informative video Allen,well done to you guys! when it said ‘capacitor testing’ I was expecting the capacitors on the circuit board of a boiler, I’ve done a few PCB repairs on boilers and it’s always a satisfying fix
Why don’t you sell us the CCH radiator bleed keys? that should raise a lot of money for charity I’m sure all us fans would buy them. I will be more than happy to pay /donate £20 for one. Just a suggestion Allen
Many expensive circulators have found there way to scrap for the sake of a £2.00 motor starter capacitor, only required for single phase motors.
Something else to look for is what appears to be a sticky substance under the capacitor. I have been told this indicates that the capacitor is on its way out. It is something to show the customer and they usually ask for them to be changed. Hope this helps.
Yeah brilliant video for those who work on oil burners. This is something they do not teach at the college on the course.
Thanks.
Jones im amazed they do not teach basic capicitor testing.What type of course is it?
Its sounds like a diy course.
@@iancampbell582 I was never shown anything like this. Thanks
@@iancampbell582 I basically did the whole oil courses you can do other than vapourising burners. They just get you to learn operating sequences and regs etc. No fault finding
@@AllenHart999 every course on boilers should cover fault finding to show more understanding of the appliance I think
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Great video Allen I really enjoyed that. Hope you do more of these types cheers.
Hi Al ....the oil fella is great ...more on oil if poss please mate ...thanks
carrie sparks We have two really helpful oil engineers and hopefully more to come. Thanks so much.
More on electronic testing components please. Keep up the good videos
Also useful to test the starter capacitor on tumble dryers when the drum will not spin.
Hi Allen did you manage to do a vid on wiring of relays on heating systems?
Alan would you do a video on fault finding an s plan & Y plan system - great videos 👌
Great suggestion! ua-cam.com/video/yz5bMknkYrw/v-deo.html
Just bought a fluke for this recently !
Hi Allen looking forward to the video on relays.
Could you auction the boiler for your charity? Good luck
Hopefully doing the relays this week. Been really busy. Thanks.
Hello sir I been looking to buy press gun for a while now after watching your video thank
I can't decide between nova press 103 and Rothenberg Romax compact
Like you said the not having a 360 head on the nova press it bit off putting
They are both lots of money your guidendence will be much appreciated
Thank you
It’s personal choice really but i like the 103. Thanks.
Do you find that none turning jaws on the 103 as a disadvantage
Your pal recommend the 102 as this have the swirl jaws
Sometimes the capacitors just bulge or split when they die. Usually a nice cheap and easy repair once the fault is diagnosed.
Any idea what i should do with the boiler? Thanks.
Great video as always 👍
Thank you so much, Any ideal about the boiler? Thanks.
Wonderful 👍👍👍👍👍
Don't forget to check the voltage rating of the capacitor as well as it's capacitance.
We presume the unit is not connected to the mains when you put the screwdriver across the terminals? Lol
If not having a multimeter with a μ farad range function, just a _very_ simple meter, then to see if the capacitor is working, just empty it of charge by shorting with the screwdriver as shown.
Then turn the meter to the ohms range. This will charge up the capacitor from the multimeter's battery. A capacitor stores electrical charge (it is a battery). Then turn the meter to the DC voltage range to measure the volts. Put the probes on the terminal. If a reading then the capacitor is not duff. This does not mean the the correct micro farads, just that it is not duff, which is 95% of the problem with capacitors.
Ive been having lockout issues for months and cannot find the problem. I did the uf test and i have no reading, I did the test u mentioned and i am getting a reading, So my capacitor is completely duff?
@@stuarts4673
I would say _yes._ The capacitor is not giving the correct reading but appears to be working.
@@johnburns4017 Funny how the heating engineer never mentioned it at all, Said it could be anything, Think this is the easiest to check first.
👍🤓👍
💝💝💝🙏🙏🙏
Could you not just test it with your tongue?😆
TD if you do please send me a video 😂😂😂
@@AllenHart999 👍🏼🔥😄😁😆
TD 🚨🚨🚨🚨😂😂😂
How stupid are you the resulting belt from the capacitor would kill you😢😢