Kenwood Chef A901 Smoking Capacitor and Repair.
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- Опубліковано 10 гру 2024
- A friend reported smoke coming from the body of their food mixer, so I take a look and find the X2 capacitor on the incoming mains was in pieces.
If you found the video useful please 'LIKE' as it will help to raise the video up the suggested list and help others. I don't stand to make anything from this as I cannot monetise below 1000 subs anyway.
WARNING - If you are going to play with the insides of this device make sure it is isolated from the electrical supply.
Excellent video, thanks very much for making it so clear and well-narrated without any of the annoying music and hard-sell stuff that mars so many. I was on the point of dumping the old Kenwood but you've given me the confidence to grab some parts off Ebay and attempt a repair. 😃
Thank you.
Make sure you get parts from a reputable seller because the capacitors need to be genuinely 'Class X' rated ones.
You should find it easy to do and I hope it goes well for you.
Very clean video. I just brought same Kenwood model which is now 40 years old from my mother to repair. Replacing these capacitor should be the first thing I must try. Hopefully that should work.
Thank you. I hope you are successful.
An excellent presentation and so simple to follow. NOW I hope I can get mine fixed. We have opened it and found a blown capacitor. Oooh so exciting.😀
You be careful with that excitement, you could end up like me, but best of luck with the repair. As I have said elsewhere make sure you get the capacitor from a reputable source as the X2 rating is important.
Broken mixers and 16:20, as I write. Things can only get better. Thank you for the advice. Much appreciated!
Phew!
@@twotone3070 Yep
How did you get on, fared better than England in the end I hope?
@@twotone3070 Good of you to inquire. I am hugely embarrassed to say I have not taken any action yet, being so busy with work and with a big list of jobs to do. My wife has been chivvying me though so I must look up the items and try to order them. Thank you. I'll let you know how i get on. Enjoy the last match tonight! Clive
:) Life's just a hobby, something to fill the space between being born and slipping off the end, you can take it a pace that suits you.
Well done Scotland, cracking match for the non partisan. I like to think England finished mid table, respectable without being showy.
Thank you for posting this video! Purchased a service kit online and have now successfully changed the capacitors and resistors. Great instructions and gave me the confidence to tackle this repair on my own.
My pleasure, really pleased you were able to do it.
Repaired an A901 model exactly like this with a circuit board - it was stuck on high speed. I had to dismantle it to get at the board, but replaced all the capacitors with a kit of ebay, runs perfectly.
That's good to know that the speed control problems can be fixed by changing them as well.
Just found my Mums Kenwood mixer and it works but it does have this Smokey smell. I think I am gonna open it up and replace these components just to be sure. It hasn’t been used in about 20 years either. Great video btw 👍.
Probably best to take a look and if the capacitors have not already been changed get them changed, because it's only a matter of time. Better that you don't spend the time using it wondering it's going to go bang.
People love these machines, I think mostly because they hold memories.
Thanks, for commenting. Help and cooperation are so much more productive than self and conflict.
Very helpful and a very anondyne voice. Thank you very much.
Well I'm only likely to get excited if left in a room of spare components or tools.
Excellent video, clear analysis and description of work. Well done!
Thank you, hope it helped.
Mine had the identical problem, so I guess it must be a weakness. Repair kit on its way.
This type of capacitor dries out over time and many of these machines are at least 30 years old, so I'm afraid it's inevitable. Many other domestic items would have the same problem, if we kept them as long, but we don't tend to.
Just a tip: Always take solder blob on your iron to the joint this transfers heat rapidly to the joint, thus preventing damage to the components.
Fresh solder with flux still burning.
Yep both caps popped was hoping not to change triac but guess it's for the best result
Great video.Fixing on a A901e model which has a PCB with more components though both caps exploded. The (e) must be another version. Let's hope just doing caps does the job on mine.gteat video sir
Thank you, I hope it goes well for you. I don't know where the other cap sits in the circuit, but there is always the potential for it to have taken the triac out. If it has, it's irritating, but just a component that can be changed.
Thanks for this, I have two to repair and now I know how!
I hope it goes well for you.
Thanks very very much for this video. Last night I heard a pop from the mixer and it died (we've owned and used it for about 38 years now!). I opened it now and found exactly what you describe. What is the value of the other capacitor - the small one? Although it looks intact, I will follow your advice and replace it as well.
Hi, pleased that you are having at go at repairing it. If your machine is an A901 then on the machine I worked on the larger one is Class X2, 0.15µF 275V the smaller one is Class X2, 0.047µF 275 V. The X2 bit is very important, I suggest you use a reputable supplier.
@@twotone3070 hi, this video looks really helpful! The larger capacitor on mine has the value 250v on it and either 0.15 or 0.13 uf (can't tell as that's where some of the plastic has blown off!). Would the ones you used still work (it's an A901) or does the 250v make a difference?
@@LizzieFeathers1 The ones I used would be fine. If the replacement component has a greater rated voltage then there isn't a problem, the other way round would be wrong. The most important specification is the rather innocuous 'X2' bit, this in effect refers to it's 'safety rating' and is the bit that should NOT be ignored. Incidentally and a bit geeky, capacitors probably don't come in values with 1&3 in them, 1&5 together are what is known as preferred values, 15nF or 150pF or 0.015uF that sort of thing.
@@twotone3070 thank you so much for this info! Finally got round to fixing it today and it's working perfectly. Such a helpful video
@@LizzieFeathers1 My pleasure, thank you for letting us know it worked.
We have same model , belonged to my late mother in law, same issue, i did see another repair video, cant find it now , chap said burning / smoking caused by dust so just needs clean ? Ive not looked yet but will see if capacitor looks damaged. Thanks for helpful video.
Thanks. I hope your repair is successful.
Great video but I need further advice. I have taken a Chef A901 to pieces and inside the motor there is a fan blade at the opposite end to the mother board. This appears very loose with lots of play and turns separately to the motor. Any ideas about the fan?
I'm really sorry but I never went any deeper than you see in the video, I was just doing a favour for a friend. I wouldn't have thought the fan should be free to spin, you'd expect it to be fixed. I've tried to find a video to get some ideas, but with no real luck. There is a French one that shows a fan but he doesn't do anything with it. ua-cam.com/video/h5vmCh-KRw4/v-deo.html
My KM201 is later model but same issue - has a cct board and more components to control it, - a very simple speed control, not sure how it works. One cap shorted and burned and spit in half long ways. Will do the fix soon. Has 2 small blue caps also - prob tantalum - some say they can cause problems too?
Yes I believe some tantalum capacitors can fail, but I don't know whether it is a particular type in a particular setting. I'm going to search out of curiosity now.
Excellent video thank you. I also have an A901 (serial number 0932359) which now runs at high speed on all settings. I understand that the 2 capacitors are the most likely cause of fault but there is no obvious sign that they have failed (not blackened or damaged). Would you recommend I replace them anyway or is there anything else I should check first? I don't think there was any black smoke. Any advice greatly appreciated.
20 minutes into a 6 Nations match, what a time to post a question :) I would change them anyway as they are the weakest link in the circuit. Make sure you get replacement X2 capacitors from a reputable source.
I've not studied the speed controller circuit but if you cannot see any blackening of the resistors then the next thing after the capacitors that I would look at would be a mechanical issue from the knob towards the electrical circuit.
Good luck with the repair.
What type of Wire did you add to the Wire
It looks like I used some 0.9mm wire. It would be stiff enough to hold the capacitor in place. You would only need it if your capacitor legs are too short.
Do you have any formal Training in electrucial repair??
I did a comprehensive apprenticeship and worked in telecomms for 40 years. So close.
Hi there, thanks for this very informative video. May I ask what make and model the long nose pliers are you used please. Thank you
Thanks. Unfortunately the pliers are unbranded and about 30 years old, a 'present' when I retired. I've looked at Screwfix and they have a pair that look similar for £8, but I have no idea of the quality. Knipex brand are quite a bit more and there are pairs of all types from what I've seen online at comprehensive tool suppliers. Sorry I can't be more specific.
Thanks for an excellent video. Both my capacitors have blown and there are bits missing. The one cap shows 0.15uF but the other cap I can't determine its value. Also the one resistor which has the colour code green, blue, but I can determine the third colour as it is blown. Any idea what the second cap value is and the resistor? Thanking you in advance
If the Green,Blue, (Black I think from the video) resistor and the 0.047µF have blown there is a possibility that the Triac has also suffered.
@@twotone3070 Thanks mate
@@Testequip Have you managed to get it working?
@twotone3070
Yes, I managed to get it resolved.
I did this job a few years back with a kit off ebay. free mixer essentially out of the whole deal. my dial has to be pushed in and turned to actually select speed. I see yours is flush against the machine. going to have a look as assume an easy fix?
The one I did was quite straight forward as I could see which component was faulty and fortunately the capacitor spec was still visible. Although as you say, the kits are available. my only thought about buying a kit from a less reputable source is that the X2 specification of the capacitor has to be genuine, it is sat across the mains.
My A901 had the common smoke issue so replaced the capacitors, resistors and triac etc with a kit purchased online. The Chef does go round but only at 1 speed- very fast. Any idea what might be wrong? I have no control over the speed. I am pretty sure I wired it all up correctly.
I didn't look at what the speed control knob actually adjusted. I could see it moved the mechanism up and down, presumably there is a variable resistive device underneath the moving plate. I've seen a comment else where saying about a centrifugal component, which implies a self adjusting rotating part in there somewhere. I'm sorry I don't have the machine so can't go digging inside.
Super nice setup loving it keep up the good work!😍
The Caps on the mixer are both different ! , but you have put 2 of the same type back on !
On my machine the larger one is Class X2, 0.15µF 275V the smaller one is Class X2, 0.047µF 275 V. They both look similar but are different values.
@@twotone3070 Thanks for your quick reply , do you know what make they are ? .
@@SpikesMavic I didn't choose a particular manufacturer, but I did use a CPC Farnell for the supplier to ensure I got genuine quality components. The part numbers were CA07109 and CA07107 respectively. Cost more for the postage than the parts, a total of £7.02 but you do get 5 of each. The important bit beyond the capacitive value, is that they are X2 rated and e-bay may not result in the best quality.
How to use keema option please make video
I'm sorry I don't understand if this is a question?
Thankyou for a very informative and easy to follow video. My A901E too started smoking when used, my husband after looking at your video will now try to fix it himself as companies around here said it was too hard and takes too much time therefore it would be cheaper to purchase a new one, but we would like to pass this mixer onto our daughter. We are situated in AUSTRALIA, could you please let me know what I will need to purchase and where would I purchase it from please, if its not too much trouble. Thankyou once again, looking forward to your response.
You will need to open it first, take a look at which components are damaged and that the configuration of the circuit is the same. I wouldn't want to recommend the wrong items based on what was in the one I repaired.
There are web sites selling kits to replace all of the electronic components, but again you would need to see exactly what you need.
If the parts are the same I can can guide you.
@@twotone3070 Thankyou so much for your quick response, I will ask my husband to have a look at it and double check as to what is needed before we make a purchase, if we run into any trouble and its too not inconvenient to you we would really appreciate your knowledge and help. Thankyou once again.
Thankyou so much for all your help, my husband successfully changed capacitors and resistors, I so super happy that it now works again, as we received this as a wedding preset over 40 years ago. You gave him so much confidence with your very informative video. Thankyou once again from Australia.
@@elizabethzscherpel3642 Love that you were able to repair it and it truly is my pleasure, especially as it obviously is an important link to the past for you.
Makes my day and more so that you took the trouble to comment.
@@twotone3070 ❤
I am about to make this exact same repair and was about to but the two components you recommend from CPC Farnell. However the larger one, CA07109 is out of stock. Can you recommend an alternative? Thanks :)
I had a look at the CPC site and there are others that seem the same spec. I could not see any difference apart from the manufacturer, if someone can see a significant difference let us know. An alternative part is CA07147
I hear the dreaded smoking capacitors are a common failt on the A901, do you think replacing the older style capacitors in an A701a with the more updated one's would cause it to have the same issues as the A901?
It's not related to the make or model, it's simply the age and type of the capacitor. So changing the capacitors in any device with newer ones of the correct type will prevent the old capacitors from breaking down and causing you a problem.
Thank you for posting this; it was really helpful. I'm in the middle of rebuilding my Kenwood Chef A901 like the one in this video and decided to regrease the gearbox and give the machine a general overhaul at the same time. Gearbox - fine. Motor - fine. What has completely defeated me is reattaching the small squarish red lever (top front) by the pin at the top of the shaft of the lever and the spring above the plastic housing. Does anyone out there know if there a knack to getting the pin back into place? If the spring goes through the small hole in the middle of the lever shaft, to what does the other end attach?
I'm afraid I cannot see in the video how any of that is assembled, it wasn't where I was working. I don't have that machine so can't even take a look now, sorry. I hope you find what you need.
Ah, no worries. Thanks to a post on Fixya, someone very kindly explained the process. For the record and if anyone else is looking at this later, it's important that the spring is attached first - it clips on the gearbox housing itself. You know you've got it right when the lever moves correctly if pushed. Then, a little not-so-subtle applied force got the pin (through the lever shaft) into it's little groove. No-one was more startled than me when it was switched back on - and works! Thanks again.
Another question. Will this kit work for the 701a please?
I'm afraid I don't know because I've never worked on a 701.
If you have some capacitors of this type in there you can't go wrong by changing them like for like. Is there anything left of the capacitors? You may be able to find an actual repair kit specifically for a 701 and if it details the component values you could them purchase they from a reputable source.
@@twotone3070 Actually Lana’s Kitchen Spares have a kit for the A701A. They are X2 caps. However, there is a 1 cap kit and a 2 cap kit so the machine has to be stripped first to check out which circuitry it has !
Were the 2 new capacitors the same please?
Hi, pleased that you are having at go at repairing it. If your machine is an A901 then on the machine I worked on the larger one is Class X2, 0.15µF 275V the smaller one is Class X2, 0.047µF 275 V. The X2 bit is very important, I suggest you use a reputable supplier.
Great job
Thank you.
I enjoy this Video
Muchas gracias.
Hope you don’t mind my asking. I’m now contemplating getting my soldering wire and flux. Any recommendations please.
If you are in the UK then this is the sort of thing, but I've never ordered from here. Weller is a well known soldering specialist, so if it really is them then it would be good. You can get it delivered to a locker for free, I think, or use Prime. www.amazon.co.uk/Weller-40-100-General-Purpose-Solder/dp/B0001P171A/ref=sr_1_6?keywords=Lead+Solder&qid=1645207767&sr=8-6
If you'd rather not use them I found the same thing here, but I don't think I've ever bought from them. £3 p&p. www.powertoolsdirect.com/weller-rl60-40-100-general-purpose-solder-resin-core-100g
Lead based solder may have heath concerns, but may not. It is certainly easier to use. You shouldn't need flux as it is built into the solder, just don't breath in the fumes, rosin flux can affect your lungs.
The highest risk is from flicking solder into your eyes, so wear safety glasses/goggles, somehow it can get behind ordinary glasses.... And don't think you don't need them, 'cos you do.
Practice wrapping some wire and soldering before you attack the real thing, get used to wielding the hot iron.
Good luck.
hello do you know the value of 2 resistors since icant find a whole set im gonna purchase it one by one and also the triac
My first answer is I'm afraid I don't know, I don't own the machine and would have to visit a friend to open it again to look. But if the resistors are still the correct colour, that is to say, not burnt, then there is probably no need to change them. I've looked at the close-ups in my video and think they are 56 ohms 5% tolerance and 220 ohms 5% tolerance, probably 1/2 watt, but I may be wrong. What are the colour bands are on them?
Have you been able to repair it?
It is not spinning too fast on min setting?
To be honest I don't know, it's not mine and I've never used one, so maybe.
Thanks for the video! Could you tell me what type the diode is on the PCB? Because on mine the diode seems also broken.
I didn't have any diodes that I could see on the machine I repaired. Are there any identifying marks on it and whereabouts in the circuit is it?
@@twotone3070 it's broken lengthwise and I don't think I will be able to read it since it might fall apart. I'll take a look tomorrow after I disassemble it completely. Thanks for your answer.
How did you get on?
@@twotone3070 It wasn't a diode, it was a burned resistance on which you could not see any colors anymore. I changed it but it still doesn't work. I'll have to look at it again sometime.
hi, what are the capacitors I need to do the same job please?
Hi Andy. The larger one is Class X2, 0.15µF 275V the smaller one is Class 2, 0.047µF 275 V. Are you in the UK?
@@twotone3070 thanks for the fast reply only just watched the video 5 minutes ago
@@andystanley562 I'd have been quicker had I not had to Google the ALT230 to get a µ symbol :) If you don't have a preferred supplier for genuine components I used CPC Farnell and the part numbers are CA07109 and CA07107 respectively. Cost more for the postage than the parts, a total of £7.02 but you do get 5 of each :)
@@twotone3070 thanks for that, I am not an electronics guy - outdoor education is my thing, have a UA-cam channel just started - Expedition Hiker - but my parents gave me the pass me down Kenwood, but 1st time turned on, it smoked so be nice to get it working,
@@twotone3070 Thanks, i have placed an order with CPC and ended up buying other stuff from them too, although not sure once paid why they want to do a credit check as not looking for an invoice
Well mine is all mounted on a circuit board and looks like two capacitors have burst. I cant see hoe i can repair it short of complete disassembly including unsoldering 4 wires and unmounting the circuit board. And its difficult access to the screws. so i think its junk now tbh.
Could you leave the existing capacitor leads in place attached to the circuit board, form hooks out of the ends and solder the new capacitors to them? Shame to bin it when you can see what the problem is, the machines seem to be well liked by their users.
Think I had same problem as you with a circuit board also maybe I can can some knowledge I would appreciate much. Changed 1 burned out capacitor and resistor the other capacitors looked fine ran it for 5 minutes and other capacitor burned out. If you could contact me I would really appreciate it. Bob from Canada. Email or other method ? bob.amy@hotmail.com
My Kenwood just made a loud pop and started smoking, and it stank! I have opened it up and the 0.047 capacitor is cracked like the 0.15 capacitor shown in your video. I have ordered the repair kit and will attempt the repair myself. Do you think it necessary to also replace the resistors and triac?
As it is in the speed controller part of the circuit I would probably change the triac as there is a risk that damage could have been done and you'd end up doing the job twice if that was the case.
As far as the resistors go, if there is no damage visible you could take the risk that they have not blown open circuit, but then again they are not that expensive and you probably won't need to open it twice.
As I have mentioned before, the important part of the capacitor replacement is the X2 specification, it's a safety issue.
Hope this helps.
@@twotone3070 Ok thanks! The repair kit I bought contains the triac, and resistors, so I'll give it my best shot!
@@annemccabe9126 Nice hot iron, flux either in the solder or separately, make sure the tags are clean, make mechanical connections before you solder if possible, take photos of where things go, check the leads on the triac are the same configuration, don't heat the components too long, plenty of light, wear safety glasses - you won't get 2 goes if you flick solder in your eye, work out the order of operation so you don't block your own workspace. Nothing to it - oh and don't burn your fingers. :)
@@twotone3070 Thank you! :D I did electronics at GCSE but that was about 20 years ago...I'll let you know if I was successful!
I snipped the big capacitor off and it still works. Does it need it? I know it's a silly question. It was smoking but now works ok
I would still suggest you replace both capacitors as they will most probably be of the same age and the second is likely to fail. I don't mean this sarcastically, just logically, but it would be fair to say that if the manufacturer didn't need to fit the one you have removed, then they wouldn't have. I'm afraid I don't profess to know everything about the machine but I suspect the capacitor is being used as a filter, the other is part of the speed controller circuit and I would highly recommend changing both. Hope you have success.
The capacitors operate as mains filters and keep radio interference off the mains as well as spikes etc. Best to keep to manufacturers spec.
I found the same model in a family member's attic, didn't think twice and used it as it was to knead bread for 2min and then brioche for another 2min and then I heard a "crack" and it started to smoke and smell. I opened it and it's the same problem, I'll get the parts and ask my husband to do the repair but I've seen videos where they also restore the whole gear box (cleaning the old grease and refilling it with new one) and I'm wondering if it's necessary to do so because the mixer is 30yrs old if not more and hasn't been used for at least 10yrs, what do you think ? Your friend is using her old mixer thanks to your repair, do you know if she ever had to replace the grease ? Thanks in advance !
Hi, she is using her mixer and as far as I know there have not been any other repairs or servicing done, so the gearbox as is from the factory. Now, that doesn't mean that it wouldn't be slightly more efficient if it had an entire overhaul and if you found it in the attic, then it will perhaps depend on what that environment as been like. If it's been excessively hot the grease could have dried to the point of being useless.
If you can peer inside and see if the grease is still tacky I think I'd be happy to use it like that, if the grease comes off in dry lumps then maybe not.
People seem to love these machines and it would be a shame to see it go to the dump for the sake of a little TLC.
Please let me know how you get on.
I would change the grease. My mothers one failed in the top gearbox (1 plastic gear), and I found a guy on ebay selling recreations of the gear. I realise this is 7 months ago, but you can still do it. My personal mixer is about to get the works done to it, Caps and grease. It went pop during the great pandemic home baking explosion. I bought it 20 years ago from under a table at a car boot sale!
Hello
Sir, I therefore allowed myself to contact you because I have a
Kenwood chef A701A and it has just broken down. When I press the blue
button on the speed variator it starts normally at all speeds
(constant increase in speed) and the more I turn it the faster it
goes. Only when I put the sheet or the hook with a preparation inside
it leaves timidly and stops immediately turning although the engine
is still very audible. I think he no longer has the strength to train
the accessories. I started to disassemble it because I was thinking
of a problem with the strap on the top but it looks in good
condition. Before dismantling everything, could you help me by giving
me some tips on the breakdown. Hope you can help me thank you in
advance. cordially
You say that yours is an A701? I have only fixed this A901. I have to say I only did the repair you see in the video on that machine, any advice I am giving is purely theoretical and not from experience. If the machine is more than 20 years old I would suggest changing any capacitors as there is a possibility that the capacitor in the speed controller is failing when you draw more electric current during mixing as this loads the motor. Also there could be carbon brushes in the motor which are no longer making a good contact and again when the load is applied to the motor the higher resistance will cause the voltage at the motor winding to reduce, slowing the machine. I don't know how the speed controller works in detail, but those are the two parts I would look at first. I hope this helps.
Take a look here as it may help you inspect the brushes. ua-cam.com/video/_cHbfg4zJ_U/v-deo.html
Hi there. Do you have any plans OF the motor armature. I need to clean the armature and I need to know how hard it will be. Thanks
This doesn't belong to me so I can't take it apart again. I will look at the videos and see if I can highlight what you would need to do. Sorry it won't be for a couple of days though as I'm out shooting videos for my other channel.
@@twotone3070 thanks a lot friend. I am searching also in document sites but i have not found anything yet
@@giorgiokawa104 I have found this video (not mine) where he seems to go deeper into the machine. May be worth a look. ua-cam.com/video/RozelD1ZXnY/v-deo.html
@@twotone3070 I got it but it is about 702 models. 902 is much different. Anyway I opened the armature I have cleaned it and now I have to put everything back :) I need some special washers though and I have to make a little search for them. I will try to post some pics soon
@@twotone3070 Hi my friend. I finished everything with the motor but i have an issue with the resistors. I have lost the speed control cause the watts of the resistors I think is too much. I have pics of every step of cleaning and fixing the motor and i will post them soon so that everyone will find help
If anyone could help me with my problem I would appreciate it very much I am in Canada 🇨🇦 and a friend asked me if I could possibly repair her mixer that was smoking I found burned capacitor and resistor directly beside it. I replaced both reassembled and ran it for about 5 minutes only to have another capacitor burn arghhh need help please...how do I contact you thank you so much 😊
As both the capacitors are likely to be the same age, I would simply replace the other one. Make sure you are using ones of equivalent quality, if they are X2, then they need to be X2.
Twotone ..wow thanks for quick reply I know next to nothing about electronic side of things so it’s difficult.
Twotone don’t know what you mean by X2 please explain I got these from the kit they sell on amazon 2 capacitors 2 resistors
Twotone is there a way I could have a FaceTime discussion wish you were here to help me
@@bobthibodeau5699 I'm no expert, but it explains it here www.allaboutcircuits.com/technical-articles/safety-capacitor-class-x-and-class-y-capacitors/
Is the latest burned out capacitor the remaining one in the kit, or have you used both already?
It seems to be adjusted at low speed parts.
I mean it needs tobe slower than the current speed at level 1 or 2
It is simple. Just driver job.
There are two bolts attached to springs . just tighten a little bit and check the speed with power.
Triac id the last thing to be replaced if it is not working properly.
Thanks for the extra info.
and yes I am in stay at home Nottingham
Hi my kenwood a701a at lowest speed runs st full speed any advice thk
I don't have the actual mixer in the video so am unable to test anything for you, also it's a different model. But you would need to take the cover off that lets you see the mechanism on the inside of the speed knob to work out how it is done. Obviously having disconnected it from the mains by removing the plug from the wall. In the A901 there is a capacitor in the speed controller circuit and this may be the same in yours, if that is the case it could be as simple as replacing it. Let us know what you find - TAKE THE PLUG OUT! :)
Ok thk
Finally I manage to make a small slideshow from the motor restoration
ua-cam.com/video/_cHbfg4zJ_U/v-deo.html
I could not post the pictures here so I had to make a slideshow in my account. I hope ot will be helpful.
Hi Giorgio. Sorry I didn't get a notification of your comment. I'm pleased your repair went well and the slideshow looks good.
Hi what capacitors do i need? Where can i buy them please
There are referb kits available on line, but I suggest you get them from a reputable supplier like RS Components, CPC Farnell, Mouser or Digikey as they have to be X2 rated to be safe.
I can't recall off the top of my head what the values are, it's somewhere in the comments.
You need to check what the ones are that are fitted to your machine.