Three Most Common Motor Fixes Anyone Can Do; Ultimate Guide to Electric motors ;

I cover the symptoms and how to fix three of the most common motor problems for DC and AC motors found in Power Tools and Appliances. This is part 3 of a series on electric motors.
If you want to chip in a few bucks to support these projects and teaching videos, please visit my Patreon page or Buy Me a Coffee.
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Notes:
How to replace motor bearings
• My BandSaw Is Noisy; R...
How to wire most motors
• How To Wire Most Motor...
How Single phase motors work
• How Motors Work For Be...
Why I say the capacitance doesn't matter much?
It is simple. First we are only talking to people where in the old capacitor is not available or the numbers have rubbed off. If they have the numbers for reference there is no problem anyway, and only a few in the extreme case of not having the number would still have a problem if they happened by 50-50 chance to buy one too small. From my experience seeing questions in the comments, the vast major have problems related to these fixes and are working on a power tool or appliance with less than 1hp. Unless you buy a ceiling fan capacitor for your compressor, you are likely to be just fine. This is why I chose the examples I did, and made the comments I did ("numbers rubbed off... what do I buy" is a common question). Also note I said "washing machine capacitor" for the same reason. Search for something similar to your application and you should be fine. Finally in the notes on the screen, "the bigger the HP the bigger the capacitance should be". This advice should help the vast major of watchers.
Technical correction
Nothing yet

[@Ogma3bandcamp]

The coolest, calmest, CLEAREST, motor guy on the planet.

[@mattymcsplatty5440]

agreed

[@ericcoon9947]

Wire inside connected to the windings pulled out. Is there a way to fix it?

[@jossfitzsimons]

Great teacher. I've spent a lifetime using and maintaining motors of all types. I have already forwarded this to two others. A slight aside tip:- motors often have pulleys or sprockets on the shafts. It is a constant problem trying to get a suitable puller to fit for pulling them off. So now I drill and tap three spaced holes in all sprockets and pulleys. I have made a set of small pullers with matching holes to the threaded holes in the pulley/sprocket, on PCD 20mm,30mm, ..etc. In the center of these plates I have tapped a central hole for jacking bolt. To pull off, three set screws pass through holes in pull plate and into the pulley. Then the jacking bolt engages against the shaft. They work great. The pull plate without screws is used to position the three holes before tapping. I can't attach a photo-sorry.

[@Youtubeforcedmetochangemyname]

Agreed he defiantly is he is my goto guy when it comes to them

[@Youtubeforcedmetochangemyname]

@@jossfitzsimons thats a good idea with the tapped holes I can't tell you how many times I have had problems with Lilly's or gears being stuck

[@jasonpatterson8091]

3:08 "You do not want to hook this up to AC current, or it'll explode, and we don't want that." Somewhere in Canada, Medhi Sadaghdar (ElectroBoom) just felt a chill down his spine.

[@1pcfred]

I can hook polarized capacitors up to AC. There's a trick to it. If you want a pair of positive capacitor leads you just need two capacitors. Hook the grounds together and there you go. Like this + -||--||- + Supra genius! For real it works. I've done it. Although it takes some math to calculate the capacitance you're going to get out of series capacitors. I made a 14 uF capacitor out of a string of 100 and 22 uF capacitors once though. It was like a 600VAC cap too. The voltage rating adds in series.

[@allmycircuits8850]

@@1pcfredBut still most electrolytics don't like too large AC voltage, because they are designed to smooth out DC, so they are good to have AC component nearly 10 or 20% of DC voltage (say, 12 volts DC but with ripple of 1,2 volts AC), with frequency 100 or 120 Hz (double the freq. because of bridge rectifier). In conditions like these, current flowing through capacitor is not too much: capacitors may withstand it all day :) But if we take two of these capacitors the way you say and hook up to 12 volts AC, they may blow out pretty quickly because of excessive current they weren't designed for... But yes, connections like these are OK for crossover filter in loudspeaker where the current through it is limited by coil resistance. Wouldn't recommend to put them as start capacitor for the motor though.

[@Basement-Science]

@@1pcfred If you do that, the voltage rating does NOT add up. In that arrangement the oxide film in the electrolyte has to act like a diode in one of the capacitors in each half cycle of the AC. This also generates a lot of heat and can damage the caps. So in general apart from some audio applications it´s not a good idea to use that arrangement. It won´t last long.

[@1pcfred]

@@Basement-Science the added surface area dissipates more heat. That's why it works that way.

[@markojarvinen]

👍🤣🤣🤣

[@wildwilderson]

I am 79 years old and you just explained a lot of things I should have known years ago. You are the Man

[@randallblake1213]

“This is the kind of stuff that makes me want to cut motors open …” 😂 That curiosity is what makes you an excellent teacher!! 😀🏆

[@gorilladeathtoem]

I went to college for HVAC and I now 10 plus years later realize it wasn't that the motor repair course itself that was difficult . It was our instructor lmao. He hasn't watched any of your videos 😂 haha I have watched a good number of the videos. They have been edited well, you speak clearly and your personality is in my opinion what makes it so easy to learn. I don't comment often and I felt I should just to give you some feedback and say thank you for all the work, time and knowledge you have shared with us all. My grandfather used to say you start out with a mind full of ignorance and knowledge is the only way to be rid of it. So I believe if you fill your mind with knowledge then ignorance has no place and we all should share and pass on our knowledge to help cure the ignorance epidemic as he called it.

[@TEXAS-SMITH]

My instructor boasted he taught for 25 years and knew NOTHING. I had to teach myself. Sure wish I had this video then. Sure wish you were my instructor!

[@tomswinburn1778]

@@TEXAS-SMITH Another HVAC guy here. Retired now. But if I'd had this guy spend 4 hours with me in the beginning of my career I'd have become a top-notch tech far quicker. Motors (electricity) isn't hard, but finding someone who has the knowledge AND can get it across simply is difficult. Good instructors are hard to find and worth their weight in gold. I WISH I were that guy. I can do it, but teaching someone else? A skill I don't possess and one I think you can't learn. Either you have it or you don't. He does. I don't.

[@alfredomarquez9777]

For phrases like "Help cure the ignorance epidemic", your Grandfather must have been a great person. I also had the fortune of meeting a great self-taught engineer that told me: "Knowledge is like nice hot food... you eat it and you will be nourished, but just don't keep it inside you, for even the best food wil have to be thrown out or it will rot inside you!: Knowledge NEEDS to be disseminated and shared freely. That is what humanity is needing."

[@johnmitchell2741]

I tried that once I learned nothing from the instructor big waste of money

[@uria2001]

Many times, I believe someone is "use" to speaking in a certain vernacular when speaking with someone with experience in the field. However, more difficult for a novice to understand. I believe some people are just better at reading their audience and adjusting. We are all good at something's and not so good in others.

[@matttilley5669]

You are an *AWESOME* instructor...very informative, easy to understand, and downright interesting! :)

[@jarodmorris611]

I let my kids watch any video you upload. Now my 9 year old wants to go get vacuum cleaners, TVs, and anything else on the curb

[@andyZ3500s]

@@jarodmorris611 let him that's a good way to start out. Plus it is better than what I started working on at 7. I wasn't supposed to bring junk home. So I started working on mom's appliance's. After the vacuum incident she started to let me bring junk home.

[@josephboodanian6169]

T Clodfelter uppipp

[@Steven-qs6wj]

I'm so glad I found this channel.

[@garyha2650]

Calm is good. By the way, if you find brushes that are physically too big they can sometimes work since graphite is so easy to trim down with a file to fit. Just keep spring tension in mind, the spring is there because the brush carbon wears down over time even though it is nicely slippery, so the spring maintains tension against the rotor contacts as the brushes become shorter. Too little tension from a brush assembly repurposed and they might not make as good a contact. Too much and they would wear faster. Hope that helps.

[@Ron_EZ]

My 20" shop fan stopped working, thought it was a bad cap, to no avail; realized the windings had an open, I jumped the thermal fuse. Works good now.

[@azikate]

My Derek used to fix everything that plugged in. Since he passed away unexpectedly last year, I’ve struggled because I didn’t know how and it just brought up grief and frustration. This video is so amazing- makes it easy to understand and the chill way of being, presence makes it feel easy to approach. Going to take my motor apart now and I’m both jazzed… and grateful. Thank you!

[@greenhometony]

Sorry for your loss familiar with your grief. Jeremy is pretty great, hadn't watched him in a while. 👍✌

[@JohnVance]

Holy shit, I must have heard that hum a dozen times and just figured the motor was a loss. You’ve opened my eyes.

[@jttech44]

You'll also get that hum on a 3 phase motor if one of the phases is wired incorrectly or if the power from the utility company has a phase out for repair in their 3 phase service. Generally, when you hear that sound, turn the motor off, because it'll make a whole lot of heat in a hurry because electric motors draw the most current (and create the most heat) while they're not spinning (they call this a 'stall').

[@prodigalson2670]

@@jttech44 thanks, this is really insightful and good advice.

[@MaturePatriot]

When I see someone with a motor problem, on FB or KZbin, I always recommend they watch your videos. You are my electric motor guru.

[@waitemc]

I do the same . Hes got that great teacher voice and a true love showing us how this works. No one else on the tube is cutting motors apart just to show the insides of this stuff..

[@MaturePatriot]

@@waitemc ...and he puts it in a way that anyone can understand.

[@MegaBaker123]

Personally I believe you to be outstanding for the common man and most basic electrical applications. I went to a votech school just out of highschool for basic electronics and have forgotten more than I ever learned but with that out of the way I do actually use your channel to brush up on my knowledge from time to time as I find the way you present it to be very easy to understand and educational as well so please Jeremy, keep up the good work and keep these videos going even if it means revising a few basics from time to time..

[@unitedcivilsupportgroup6121]

Jeremy, I'm so glad I found your channel. You have a great demeanor and natural ability to put people at ease with the subject matter, this in turn allows for a comfortable learning environment. I enjoyed listening to your clear and concise delivery. You've actually managed to make learning enjoyable for this old man. Please continue making more DYI instructional videos. Thank you.

[@budgillett9627]

AMEN! Very well said! I don’t know what I could add other than Mr United Civil Supply expressed my thoughts ver well. Mr Fielding I don’t know your career but you are an awesome instructor! Thank you!

[@MegaBaker123]

Well said.. I agree whole heartedly as this is what I was trying to say but in far fewer words and much more concise.

[@Villivakkam]

totally agree with this comment.

[@fiddley]

I watched this ages ago, now I've just fixed my tumble dryer with an £8 part! Thanks! Saved me about £300!

[@mtslyh]

"Hit the subscribe button if I've earned it".... You always earn it. I always learn something new from every video.

[@mattmaloney5988]

Ditto. If I could subscribe a hundred times, I would.

[@WhoDeanyUnchained]

Earned my Patreon also

[@MichaelSmith-sn8mr]

Seriously dude, how did you get to be so "cool"? To keep it simple, me smart too. I'm a "know it all". There is very little the average Joe could school me on. But your a very well composed individual. I admire your dedication to staying on topic, but allowing your opinions be heard. I'm sure it is well practice and comes with experience. None the less I for one am filled with joy to see a presumably happy individual do a craft all the while enjoying themselves. In my opinion one of many fundamentals of teaching I presume. My comment is well crafted, yes. But only because I have plenty of time to correct any errors, but you my friend are gifted with a ability to staying intelligent and humble in equilibrium. Thus creating little detectible error AKA a wise man. Opposing forces in balance. Good man. Even better role model. Speaking from the heart when I say, "God bless you". Teach on teacher!

[@maxwellsilver3115]

@@MichaelSmith-sn8mr - *'you're' - average Joe

[@maxwellsilver3115]

@@MichaelSmith-sn8mr - *detectable

[@ejejej9200]

This is my new favorite KZbin channel. Everything you do is awesome. And, I love how you explain things. Thank you!

[@eastcoast8435]

You are THE man! TY very much. Just inherited grandpas old shop and the bandsaw wouldn't start. Disconnected the capacitor (with it connected the circuit would trip the breaker) and now I can run the saw by manually starting the wheel. New part ordered, you saved me from buying a whole new motor!

[@darrelaune5083]

Thank you , I did have a Jett belt grinder stop working with that hum, I could get it going if I spun in it by hand and that got old so I stopped using it. Saw your video this morning and 10 minutes later I had a capacitor from a junk washing machine in my hands and replaced the bad one in my grinder with it.....it works perfectly now.

[@czeskaslovenska]

You mean that old wash machine out on your front porch?

[@boots7859]

Good times, Jeremy is back. Very nice that you were willing to hack the motors up for our viewing pleasure.

[@JeremyFieldingSr]

Its for my pleasure as well😆

[@JEBavido]

Boots , I was thinking the same- he went to a lot of trouble to help us see clearly.

[@walterkersting1362]

It’s not easy to cut a motor up to reveal how it works.

[@PhilGregoryFX]

Great video, very informative, and gets straight into the information without any unnecessary waffle or fluff. One of my favourite and clearest KZbin presenters for sure, I always learn something from each video.

[@jeremybernier8320]

I came looking for a problem you didn’t cover but I learned so damn much. Thank you!! Amazing teaching skills!!

[@richardcain452]

Wish Jeremy would have been a teacher when I was in school! He is awesome! So clear!

[@bluejayfabrications2216]

Your ability to clearly explain is equal to you knowledge and that is a rare quality thank you for the effort

[@NovemberBegin]

Never thought I could learn so much from 14 minutes. You've earned a subscription 👏

[@spacemanfabrication1860]

Thank you for explaining things in a way that makes sense to me. You’re the man. I learn something new every time I watch one of your videos.

[@jimbossemi-customs3129]

You're the best Jeremy! I've learned so much from you, you explain things so well and easy to understand.

[@dointh4198]

Your videos are always straight ahead and without blinky shenanigans. Very appreciated! Thank you!

[@BRACWatchChannel]

Having a real hard time getting a 50+ year old Craftsman radial arm saw working and so far everything is pointing to the motor clutch and/or capacitor. Your video is absolutely awesome and answers all the questions I've got [and haven't been able to find], and your props are outstanding!! Spot on and thank you for creating and posting this!

[@wingloading]

I've long had a high level understanding of almost all of these components but I had a need to repair and your illustrative lesson helped me get it solidly and fix my motor. Thank you.

[@sidewinderam9m]

This channel is amazing. I never knew how much I didn't know about electric motors, and how much I wanted to know, until now.

[@seanlathbury5410]

I wish you were teaching my children in school. Great information.....great delivery. Thank you

[@jasoneck7086]

Been seeing your videos when they pop up in my feed. Watched a bunch. The fact that you say "if I earned it" at the end is the most humble way of getting subscribers I have ever seen. And It's why I just FINALLY subscribed.

[@kensmith6908]

I'm a big fan, my friend! You do an exceptional job and the biggest complement I can offer is, you inspire others... Keep doing what you're doing and know that you are impacting many to try DIY!

[@mainiac4pats]

Jeremy I really appreciate your videos, you are a gentlemen for providing this info on motor technology. 👌🏻

[@johncrisman576]

Thank you I have always approached motors with fear and trepidation. Have been watching your videos and have gotten more comfortable on the subject. Thank you for your efforts!

[@mickhale4884]

YOU are doubtless the best teacher on KZbin. Thank you, sir.

[@jimbauer9767]

So glad KZbin suggested you! Randomly watched this video last week. Fast forward to yesterday and my ac unit stopped working. I immediately thought, capacitor after seeing this video. 25 dollars later and it’s working again. Thanks for sharing your knowledge!!

[@twicebittenthasme5545]

Excellent video! I don't have an unusual fix or anything like that but I have a, hopefully, useful tip...use a paint marker to write the pertinent info regarding the motor on the motor or on a nearby and visible surface. Things like phase, power, frame size, rotation direction and if reversible, really help when servicing equipment since all the data can be easily accessed to order parts or even a replacement without having to tear down the equipment, which inevitably leads to scrounging for last minute replacements due to lost parts. And if servicing a motor in a harsh environment, I normally include upgrading the bearings and seals at that time also. It prevents callbacks for failures of same since everything got jostled and now the integrity of those parts might be compromised (or they weren't all that good to begin with). Great video. Thanks for sharing your knowledge!!!

[@hermanswartbooi1850]

Thanks sir its a eye opener for me in now where you are great instructor now i can also help myself

[@TeddSpeck]

Hey Jeremy. I just wanted to say hi and thank you. This is a great channel I've learned a lot from it and I've watched a bunch of the videos a couple of times. As a result of your videos I figured out that it was the capacitor on the pool pump that was the problem and I replaced it and it worked fine. Plus it was really easy to do. So thanks again. I really enjoy everything about these videos from the information to your calm demeanor and personality and big smile and involving your kids too just wonderful.

[@marshallcalder247]

Thanks for your video instruction here. When you want to declare that you've really enjoyed one of these tutorials is saying a vast deal. Very concise and clear method walk-through's - he's instilled a confidence in me with the faultfinding process in this particular subject. Most others left me undecided at the end...Confused even, in some cases. I can tell he's a really cool dude - he's right out in the front!

[@jakegodfrey9490]

Thank you for your time and great information. You answered every question I had. Seriously, thanks for taking time out of your day to do this. Really awesome thing your doing.

[@coolbluelights]

I've been taking motors apart since I was old enough to pick up a screwdriver. I share your fascination with them! I remember being 3 years old and wondering how the second hand moved on my dad's electric clock without anyone touching it. my parent's explanation "Electricity makes it move" wasn't good enough for me lol

[@rockystanaitis2908]

Thank you so very much for posting this video. It gave me bravery to do surgery on my 2004 minivan starter. I was successful because of your tips. Had the starter tested at O'riley's today. A little dap of thread locker drying overnight on those long screws. Installation tomorrow. you saved my family $350 for a new starter. Thank you.

[@cyrilnorrie8450]

Thanks for giving us the basics so clearly without a lot of technical terms that aren't always necessary.

[@alexdroban4312]

I came across your KZbin videos by accident. I love listening to your videos. Great demonstration and explanations. Everybody should watch these. Thank you!

[@Skipperj]

One thing I've done in an emergency situation on a sealed end cap bearing that's beginning to get noisy and slow it down is to drill a 1/8" hole in the plug cap, then add some electric motor oil 5-6 drops, then, clean cap surface around the hole and cut a small piece of aluminum tape to cover the hole. IT was on an outside air conditioning condenser unit.That was 2 yrs ago and it's still going!

[@alfredhiggins3911]

Thanks for a most informative and beautifully done presentation (as always), Jeremy. BTW, If one is dealing with an archaic, discontinued model brush motor, and cannot find an exact replacement carbon brush, DIY by obtaining a dimensionally larger brush, and mill it down to the needed size using abrasive paper or manicure file.

[@simplehermit]

Awesome, wow. I am an old retired electrician and you taught me a few things. Great job, Jeremy. ~Thank You~

[@pressa2play821]

You’re videos are awesome, for anyone who is related to this on a career or hobby level, youre the guy to watch. Thanks for the info!

[@awldune]

Nice to see a new video from you

[@MojitoTube]

You really have an excellent way of explaining things Keep it up dude You’re doing a good job

[@pikapomelo]

This is so cool to see. Only used to small electronics so seeing giant capacitors and motors is wild. Thanks!

[@kinglouis7134]

I happened on your channel by accident. I love it! You explain things in a very non intimidating way and simplify the technical jargon for the lay person to better understand.. Wonderful learning experience.. I’m now a subscriber.. Please keep up the great work........I’m loving it.

[@fasted111]

Great video as all of yours are. A thermal fuse inserted in the outer windings failed on a fan motor, it was difficult to access but after cutting some waxed winding string and carefully separating wires from the fuse I got it out. Ordered replacement thermal fuse and soldered it back in place then pulled everything back together with new waxed string. Sprayed two coats of clear urethane on the repaired area for insulation. Then cleaned off years of gunk from the bushings and added new oil to the foam pads for the bearings, reassembled and tested. Now runs great and should for years.

[@Storyholder23]

Regarding the bearings: the "z" following the number (6042z or whatever) often refers to the bearing being sealed on at least one side. Some brands have different designation for a double sealed bearing, specifically by adding another "z" (6042zz). When searching for a replacement, ensure that your replacement is sealed on both sides( or only one side if that's what you need). I learned this the hard way when replacing the bearing on my kitchen aid mixer. Bearing was double sealed and had 6042z on it, I bought a different brand bearing with the same number. The bearing was an exact fit, but only sealed on one side. I had to get a 6042zz (not the actual bearing number, I can't recall the exact number).

[@mrdavidurquhart]

you're brilliant at dissolving complexity and communicating - thank you very much

[@jeromestsauver]

so glad I found your channel! I love learning how things work and you are a great teacher!

[@LowkeeLT]

Wanted to thank you for this video. My compressor has been popping breakers and starting slow for almost a year, to the point I've been avoiding all of my air tools until I had time to figure out the problem properly. Turns out it was the contacts on the centrifugal switch, just as you pointed out in this video. I had replaced both caps and was at a loss.. as of last night my 28 year old compressor motor is running good as new, all thanks to you. So thank you, sincerely.

[@davidalexanderlourie4371]

My dad did home repairs on car generators. When he replaced the brushes he checked the comutator?? Spelling?? (What the brushes make contact with) for wear. If the brushes had worn grooves in the copper, attached an electric drill to the other end of the shaft and resurfaced the comutator with fine sand paper on a flat surface, strip of metal or similar while rotating the shaft with the drill.

[@beast64375]

Can also use a piece of sidewalk chalk in a pinch (not as aggressive as sand paper), just be sure to clean it well afterwards.

[@jimgeelan5949]

Thanks Jeremy I’ve just learnt so much in 10 minutes, you sound like you do this stuff in your sleep and talk about it without even having to think. I’m going to catch up on your other vids 👍🇬🇧🇺🇸

[@bifftuber7481]

Very well done, You are a good teacher Jeremy , Thanks for taking the time to share and instruct us.

[@pyromedichd1]

Our well pump has failed several times due to power surges and/or lightning. There is a control box at the well head and the pump is 600 feet below. In each case the start capacitor has blown along with the relay that switches from the start to the run capacitor once the pump is running. This motor is served by 3 wires, one of them sending current to the start winding. Once the motor is running the start winding actually generates a current which tells the relay to change to the run capacitor. After replacing the control boxes at about $500 each, including labor, I figured out how to replace individual components within the control box for about $50 and my labor. Better yet, I found that by installing surge protectors on both sides of the circuit (on the power supply side as well as the demand side which required a 3 phase protector) I can stop surges from both the power supply side as well as from lightning back feeding from the pump 600 feet below. We haven't has a control box failure since I installed the surge protectors.

[@stroys7061]

600 feet? My well is a couple hundred feet deep but the pump is only about 20 feet down hole. The water level comes within 6 feet of the surface.

[@pyromedichd1]

@OK Boomer The actual well depth is 620 feet. I live in the USA, mountains of NC at an altitude of 3700 feet. Deep wells are common here.

[@cattiger76]

@@pyromedichd1 and l tough 220 feet was very deep 😓😓😓

[@christopherptacek9695]

This is great. I've had a few problems with Baldor motors failing (coffee roasting equipment.) I am quite positive that the capacitor ends up being the problem with at least 2 of them. If I swap them out (I'm not very familiar with motors, obviously, but I am competent with electronic soldering) and they work as normal, then you've saved me a few hundred bucks. So of course I'm now a subscriber.

[@ActuatedGear]

The first video of yours I see is an instant sub. You are an excellent teacher and I will do my best to learn what you have to teach me. Thank you for putting this out there.

[@Problem-attic]

Thanks Jeremy, this video demistified the repair I'm doing on a 40 year old tablesaw motor. The demonstrations lined up with my initial observations of my motor in such a way that I was able to order the correct replacement parts with confidence! Thanks!

[@neilninnam2794]

Awesome video!! I learned so much from you and I definitely know where to start (pun intended) now in troubleshooting and fixing the dead motor for my Sears Craftsman table saw. I also love how you leverage your skills and curiosity to appreciate and demonstrate the details of some fundamental engineering. I’m definitely subscribing and giving you the thumbs up so hopefully you can make more of these value-added videos!! Thanks so much!!

[@johnlogan8218]

Thank you for your great videos. I have a 8 inch wen bench grinder that won't start the capacitor is good and the switch is good . I don't know about the the reostat for speed but this thing has a a bunch of electronic stuff I don't understand . Can I by pass that a will it work like a regular electric moter? Thank you

[@petermarsh4993]

Dear Jeremy, thank you for coming to my rescue with regard to a problem with our dust extractor motor. After a goof run {blast gate closed on both arms whilst motor ran for five minutes} the motor only hums on startup. Although the motor got a bit warm, I can’t believe that anything melted because the ambient temperature was so low - around 12˚C. The best bet is that the capacitor has failed. Let’s see if that is correct. I have watched several of your KZbins and have always been impressed with your presentation. It is clear that your knowledge is supreme but you do not come across as an arrogant know-it-all but a gentle and peaceful teacher. I don’t know what you do for a career but if you have ever thought of teaching, there are thousands of kids out there that would thrive on your approach. All the best.

[@gregorykielczewski8883]

This is the best instructional video on KZbin I have ever seen. Jeremy, you are awesome.

[@dougblair9810]

Prolly one of the best informative videos I’ve seen on KZbin . Defiantly top 5 .. nice job

[@technosaurus3805]

The capacitor failure is a common cause of loss of air conditioning. You can fix it before the HVAC guy could even get to your house. It sounds just like Jeremy demonstrated (outside unit)

[@thereisaplace]

technosaurus - Had exactly that happen in a Florida summer years back. Pointed my oldest child to Google to research the part. I helped pull the motor & capacitor (that is a BIG cap). Had her rewire it, we mounted it back, and away we went. Good times.

[@joshuas1767]

Yeah, it’s bad when you pay $100 to have a repair guy come the next day and you realize you can do it with a 10 in 1 screwdriver and a $15 part

[@jonahbrame7874]

I wish I had seen this video and comment about three months ago. I had the same issue and it took the HVAC guys multiple visits to find the problem.

[@asterix2ksi]

Home Depot and Lowes stopped carrying them, got mine from amazon cheap but took 3 days to receive. I recommend anyone with a house over ten years old (since last cap replacement) to consider stocking one for when it does fail so you don't have to wait and listen to your family complain. Once I had the part it took 2 minutes to replace.

[@scottmartin7717]

@@asterix2ksi damn right, was just thinking I had better go order one since finding one in stock will be impossible (especially during this Corona summer)

[@edmundhayes7982]

Always great videos

[@Silkroads733]

I admire this gentleman..very clear and excellent at explaining the workings of the motor, what I admire most of all is the fact he shows not a shed of arrogance or ego..which I found on many a KZbin video..that’s when I stop the video and move on..we are always learning and what you don’t know someone else does..so no one knows it all (yes I’m stating the obvious) stay humble folks and let’s just help and teach each other.

[@Kennykoo65]

Really good videos! Love your clarity and simplicity in explaining these subjects.

[@wayne1959]

very informative indeed..One tip from me is to collect all types of motor brushes as they are easily sanded to size and soldered to fit different apps..Thanks For your efforts Jeremy

[@SysDaemon]

Hi Jeremy, Just fixed my 2hp 120V spa pump that was just buzzing like when the capacitor was disconnected in your video. Capacitor was fine, it was the contacts on the centrifugal switch that weren't making contact when the motor was stopped like they're supposed to. A little bit of *gentle* sanding with a very fine grit sandpaper has fixed it for now. Hope this helps somebody if the capacitor-swap fix doesn't work. Saved me ~$250 for a new motor!

[@nickfirst7249]

better to use a pencil eraser

[@osmanvincent1975]

Basically agree. My experience is about an equal number of faulty capacitors and dirty centrifugal switch contact, often a piece of sawdust preventing closure

[@BlackwaterVision]

Hi Jeremy. Great videos. Thank you! Could you touch upon these Fasco D132 3.3-Inch General Purpose Motors, 1/20 HP, 115 Volts, evap motors. I've had 3 of these quit on me after 2months of running. The first one came with the evap unit and lasted the longest at 3yrs. The 2nd I found on Amazon, and lasted 10mo's. , The third was a FASCO, and it ony lasted 2 months! At $60-$70 a pop, I'd like to begin repairing instead of replacing.

[@boringlyfactual6368]

Love this channel every single time I watch a video. Keep up the GREAT work.

[@sb4744]

Thank you Sir. For the very informative and intuitive lessons in electrical motors. You are a Great teacher!

[@tkramar6372]

I had a problem with an old drill press motor overheating with little to no load on it. Ended up being the centrifical starting switch. It wouldn't disengage when the motor got up to speed. A few taps with a hammer and some WD-40 got everything working again. I didn't have to disassemble anything fortunately.

[@allrock1238]

WD-40 before its carrier fluid fully evaporates ignites with a spark like any volatile fuel.

[@tomrausch7014]

Natural born teacher! 190K subscribers says a lot.

[@ascensionunlimited4182]

Watched this 3 times just to make sure I grabbed every piece of information possible. Seriously amazing content

[@davideshoo8269]

Hey man, I'd seen a few of your video's before but recently discovered just how informative they really are wso I decided I needed to subscribe. Very informative! I'm really enjoying learning new information from the variety of content you are providing. Very cool! Thank you!

[@pixifixi2076]

just remember to discharge that capacitor else you'll have an "electro-boom" moment

[@eriknau1]

My thought exactly, he could use a quick warning edited in there

[@ktaragorn]

@@eriknau1 Exactly.. Surprised at the lack of warning given it is AC voltages.

[@salb714]

Instead of saying it you should explain how to do it. It would help people know what you are talking about to avoid this Boom?

[@pixifixi2076]

Electroboom is a electronic channel that has a running joke where he's always electrocuting himself. The motor starter capacitor can give you bit of a shock if you touch it after running. (first hand experience)

[@Eyes0penNoFear]

@@pixifixi2076 my brother pulled the capacitor out of one of those electric fly swatters. He loved charging it up, then tossing it to his friends to catch.

[@dancingwithnature5303]

🙏 Thank you for sharing your time with us!! Question: Is there a way to make a foot control (like a sewing machine has) to control the speed of a Dremel 295 variable speed rotary tool? I'm a self taught bench jeweler and I need both hands when I'm working on silver or stone setting. I like to repurpose, recycle, repair and sometimes make my own tools. Thanks again for your work!!!

[@Aubreykun]

Build a small U shape piece out of boards. Get a dimmer switch, pull the knob off, attach it to one of the side boards. Run a dowel as a shaft from the dimmer switch's control to the opposite board where you put a bushing of some kind (can be just an old piece of plastic with a hole in it, like a piece of cutting board, shim made of milk jug, an empty tape roll or slice of a pen body since it's just to keep the motion smooth and supported). Attach a pedal to the shaft slightly off-center, like a treadle. This will reduce the power of the dremel at the lower speeds as well, but I think the inbuilt speed control for them may already do that. Also it's important that the dimmer switch's range is sufficiently small to fit the range of the pedal, and that you orient it so that "low" is in the position you prefer - pedal fully engaged or foot fully relaxed - else you may have a struggle. As an alternative, you can do it with a sliding dimmer switch. Put the pedal onto a hinge and add a return spring. Optionally a strap over the pedal so you can lift up with your foot too instead of just relying on the spring. (tip from the bike world used in coaster brakes and fixed gear bikes...)

[@roblescurbappealconcrete]

Brother, I was very impressed at your teaching ability and your calm instructions. I learned a lot from your video, and would like to say thank you. Continue doing a great job.

[@sjbrooks04]

Thank you. You really do a good service for people. Helping them help themselves and save money.

[@NM88310]

You should be teaching at a trade school or Jr. College.

[@rickpaudert7012]

Enjoyed that informative vid Jeremy, just found you here, I’ll be checking with you on future projects, you’ve got a very good instructional demeanor. 5 stars.

[@Sammy213]

Dude, your shop has come a long way man ! I'm really happy you've had such success!

[@davesimpson8045]

Jeremy - I searched KZbin for three days why my new treadmill motor sparked and tripped the circuit breaker when I installed it on my treadmill. You are the only one on KZbin explained exactly the reason why. Thanks.

[@cceast7890]

Thank you, Thank you, Thank you, for answering all the important questions you could possibly have, and sparing us from the redundant "opening the box" parts like most of these. This puts you at #1 in my book. You da man!

[@jamesrademacher7873]

I just want you to know that I really appreciate your content and I admire your level of knowledge and it's awesome you bring to life a lot of the things that I have ambition to do as well thank you and keep up the good work

[@juan7559]

I learned a lot thank you I got to change a bearing on a motor for an oil furnace you explain stuff well and talk so clearly.

[@michaelcantrell4691]

Holy crap, I've had this exact problem quite a few times and always thought I just had to toss the motor out. Thank you !!!

[@bransonred1]

Man, great content. Thanks for taking the time to provide cut-away views of the internal components. Subscribed.

[@rickhayes]

FANTASTCI video with TONS of information!! Thanks so much for posting this!! Great job!!

[@patrickhodges2180]

An effective instructor. Super clear overview and detail.

[@frankcsorba6590]

OMG! Why couldn't I have had such brilliant teachers as a child. You would have shifted my life's trajectory.

[@Phydoux2112]

Very cool ! I needed a refresher course for DC Motors and the first link I clicked (this one) was a real prize! Nice job on this. I'm going to check out your other videos that you mentioned.

[@Spitfireseven]

VERY VERY ILLUSTRATIVE! Easy breezy going! Great explanations.

[@4shooters]

You are a cool guy. I just introduced my son to your videos. IMHO these archives will propel our future, thanks for keeping it real.

[@rogerduval5871]

Outstanding video. You explained exactly what I needed to know to troubleshoot my treadmill motor with no rambling, thank you!