How to Test ESC with Multimeter // How to Test Bad ESC Mosfets

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[@RcReviewsLt]

Faster test, just test center pins. they usually not drail, so no need to know is it P or is it N and other stuff.

[@glowiboi]

Could you explain this?

[@RIGHTEOUS_RAGE]

Apparently not 😂​@@glowiboi

[@CNSTAdventures]

Nope

[@SueDohman]

That was very thorough & I appreciate you explaining it for everyone to see. I’m clueless when it comes to using a multi meter but for years have wanted to know wtf I was doing whenever I’d picked one up, instead of pretending I can figure it out on my own. Thanks

[@sylvanlight120]

Awesome... Now I know definitively that my ESC needs replacing... Awesome informative video 👍

[@martykracher]

The man, the myth, the best live KZbinr there is! Thanks for this video!

[@oddity4650]

Thank you for making it easy to understand, this is the only video I have found that explains a 8 pin mosfet.

[@colincollier3355]

Lol, I went into an electronic store the other week with a damaged flight controller. I showed the salesmen where the smoke was coming from and he said its a mosfet. I just agreed. Thanks now I know what a mosfet is and how to test it!

[@dontplaywithlava]

Hey Drone Mesh. Thanks alot for making this video. I have the Diatone Mamba F405 stack 3-6s. I have had problems with a dead MOSFET and you've helped me locate it. Keep up the great work. Hairy Haggis ;)

[@كثيرالطيب]

شكراًجزيلاً على الشرح الواضح والمفيد 👋🇰🇼

[@Redshift1360]

Thanks for the tutorial, I've got another new use for my multimeter now👍

[@Kikerumbo]

Great video m8. Very informative and well done. (Contituity.. nope. Continuity).

[@alvaives9606]

Say it with me. ContiNuity

[@itchyliabdo]

Clayton Bigsby 😅😅😅😅✋

[@bennieleip579]

:D you where on the live chat to or not :D

[@Irigoyen4]

It hurts the credibility of the host if they cannot pronounce words properly...no offence!

[@SaltyFarm]

M I if the information is legit i could give a shit about his pronunciation cred. Seems legit to me

[@Irigoyen4]

Good for you! If it seems true... why even question the fact the presenter has issues pronouncing basic words within the subject they are presenting? Guess everybody who is unfamiliar with words in their speciality must be experts...makes sense...thanks.

[@xtkfpv5306]

Thanks that is a useful video, I usually can tell because the packaging on the Fets will blister a bit when the blue smoke leaks out.

[@suhassalunke7882]

This is very important which u have discussed in this video THANKS U SO MUCH .....

[@Andrew-ui5qn]

Love it. Learned so much. Thanks for the education

[@vonhb7471]

will one bad mosfet ruin an esc? i had this issue before with the motor twitching and desyncing when i throttled up. it ended up being a broken wire on the motor winding. i could never figure out how to test an esc. now i do. thanks drone mesh!

[@KrotowX]

I'm doing that already very long time. I don't mess with burned motor rewinding though (see fishpepper's blog abot this subject) - it is beyond me now. But dead component replacing often is faster and cheaper for me instead of waiting for new ESC-s and FC-s.

[@luthmhor]

Is there reason why you can’t just check each pin combination? Polarity shouldn’t matter as your only checking if the circuit is closed or open.

[@BuzZ.]

You can try get those MOSFETs from eBay or aliexpress. They will not be the same quality but they should be fine, BTW i really want to see how to change MOSFETs on ESC :)

[@BuzZ.]

David I want to see drone mesh to do it

[@renzevenir4853]

Good luck desoldering SMD FETs

[@renzevenir4853]

Yeah, you must be using ESCs from 2015 which are bulky and have big ass DIP MOSFETs instead of recent ESCs which have very tiny MOSFETs that is PITA to solder but whatever..

[@BuzZ.]

IRFZ44 :D

[@danskifpv]

IRFZ44 Soldering? Nope, use your gf's old hair straighteners as a hotplate. Win

[@digitalfyistudio]

Very well explained. So easy to follow. Well done!

[@RIGHTEOUS_RAGE]

You are absolute legend my guy

[@trevorjames5493]

So if I get the probes mixed up and I put the positive on the negative won't it still show continuity or not?

[@skyforce1983]

Hi do you have any videos showing how to trouble shoot and repair vtx and receivers

[@rnelias]

Excelent! Thanks for sharing good info! btw, is there a simple test for motors without having to spin it and check the current created? Maybe testing for resistance of each phase...

[@user-im7gd5do9h]

Did you make the mosfet repair/replace video yet? I loved this video! Need the repair one now! Thanks!

[@MarcHord-mk5ff]

Cool . that is easy way to test for bad esc. Thanks

[@MarcHord-mk5ff]

so the gate is the switch leg ?

[@nts323]

Hello I wondering if you can help me is there a way to test a esc can handle the battery amperage it says it can i have a 150a 6s capable esc it runs fine on 2s 3s 4s then 6s it burns up is there a way to know if it can really handle 6s.

[@eviljeff2011]

Thanks man, lots of help, You are much appreciated

[@imager09tube]

Excellent! Continuity no contentuity so funny! Just kidding around! good job

[@D-Flap_FPV]

Thanks for explaining! Helped me understand.

[@finbenton]

If there are 2 mosfets per wire, would they be paraller? So if one of them goes bad and you measure continuity you cant know which of the 2 paraller mosfets are bad as both would beeb through even if only one goes bad?

[@maxtor9396]

same thoughts here. mosfets are in parallel. so does this video make any sense?

[@martindragoun2911]

hi man, i have tested my setup and it turns out in burning one of my motors. So my question is what could have happened? Im running Holybro Tekko32 35A single ESCs and IFlight Xing 2207 2450KV. BTW thx a lot for helping me test the ESC!

[@madebyandre_]

Is it still possible to save a 4 in 1 esc that was wired in wrong? I accidentally wired the vbat wire from the esc to signal 1 and burned the processor of the FC. The 4in 1 ESC does not have any physical damage but it doesnt boot up anymore.

[@corycanfield545]

Just finished putting together my first quad an it went well after I've binded my receiver an setup betaflight an plug the battery in no smoke so that's good but when I arm it the motors they don't idol up but they will when I throttle up except #3 an #1 doesn't seem to be working right either when I'm in betaflight the motors all work fine with the master control I was wondering if maybe you might have an idea

[@TbstUSA]

I just ordered some top of the line esc's that you reviewed because of the good results. I plan to use the current limiting feature to help reduce damage when the prop jams. I was wondering if you think that would help or are the MOSFET's done for if the jam duration lasts too long. Plan B, will a small aluminum heat sink help? Wondering why they aren't put on by the manufacturer. Thoughts?

[@Inertia888]

I can tell you that when running these mosfets as hard as we do, a heat sink will certainly help them. I think the heat sinks don't always come with the esc for weight reduction reasons. Possibly price too, but for quads that are aiming to stay under 250g, it makes sense to not use a heat sink, since there is a high rush of air cooling the electronics during flight. So, I don't know about the limiting feature, but if weight is not an issue at your final weigh-in, a heat sink will not hurt, but is not absolutely needed.

[@youeladamas7840]

great info i was thinking of getting the repair parts but they stuff changes so fast by the time it is to fix its outdated. lol i so much want them motors for my blue lady how are they to the racerstar same size

[@daiciuapostol79]

Super nice video,one question I have esc for boat end it's not working but i have" Bec " end it's working I have control for my reseiver end for rudder but no control the motor do you think it's possible to be mosets damage.

[@bladermusics]

bec is controlled by other circuit on esc so in this case you have mosfet(s) burnt, check them one by one with multimeter and change them.

[@daiciuapostol79]

@@bladermusics tank you

[@kristaandsimo916]

Thank you so much for the great video would you be kindly give me the link where I can buy the mosfet buy for from?

[@MCsCreations]

Really nice, man. Again: great tip! :)

[@bighe7642]

Can you connect 1 lipo to an ESC to see if it still works

[@SelkoFPV]

i hawe a 4in1 esc and dont get power on it if i plug the bat.the motors dont beep.any sugestions?

[@xen0ff418]

Thanks for the video. Can you explain, why our ESCs are burning? Some of them have MOSFETs rated for much higher voltage and current than the ESC, but still they are burning. Yeah, we are pushing them hard, but still - they are rated for it. Also interesting that all fets on your ESC are burnt. I'm more used to see 1 really burnt and melted fet, and the others seem ok (or at least not melted).

[@DroneMesh]

+Xen0ff I flew it through a tree to save another quad.

[@guynardin]

Hi!, I try it all but I've no continuity S-D in any Mosfet. I try with 3 motors, so is not that. I try to use the gate, to try close it but no success. Do you know any other type of test?.. thank you!!!!

[@beachcomber52]

Great information. Thanks for explaining.

[@flughund]

Okay, that was helpful. I learned really something today. :-D

[@kwadlife4106]

I have the dalrc engine. I crashed tore it down put it back together now on the bench I'm drawing 55 amp and mah are shooting up fast. Help please.

[@DangerDavefpv]

what would cause motor to get hot hot and twitch and stop when testing on betaflight new spedix 4.1 esc and ive found there is power flowing from lipo input negative to motor output pad on esc #2? mosfet?

[@jonparker5260]

Hey did you find out anything about this? I had the same exact problem with the same exact 4 in 1 esc a few months ago and it still keeps me up at night!!

[@chrisyoung8062]

wouldn't an easier method for remembering be N = negative, P = positive. If it's an N channel then the source is negative. If it's a P channel then the source is positive?

[@enrit3372]

Sory my english its bad, iwant ask ,ihad esc std car pangolin when in input bat esc light on. And blink, then when i was plug to reciver vcc for bind ( ichage ori reciver with fly sky reciver ) esc light it of also reciver light not on. When i take of the cable from reciver esc light on agin and blik. I test reciver wit bat working normaly. What tje problem??

[@memobermudez4942]

Would this apply to rc car escs?

[@sinakasanders]

Great video...(great scott outro)

[@danskifpv]

Sinaka Sanders couldn't put my finger on whicy youtuber DM nicked it from. I'd rather see the back of it tbh

[@JaydenLawson]

Great video. Thanks

[@babutheparrot6953]

Sir i have cheap 30A esc , its creating problem If i connect motor in it and after applied signal the motor start fluctuating with high vibration . And if i use it with other esc then it works fine . Can u please tell me how can i troubleshoot this problem

[@DroneMesh]

Change the ESC

[@moepow8160]

Just slave in another esc ! If it works, bad esc if no work, it's something else. That's what aircraft avionics techs do....lol their box changes. If you want to fix the bad ones in a bin and order your parts and bench repair them. I mean, if you do the continuity test and esc is bad, you're going to put a new one in any way. Don't waste your time. Repairing circuit boards are for professionals. You really need to know what you're doing. I worked on aircraft components, and you need to be trained. Good video. A mosfit is just a fancy switch, basically, with multiple on and offs. One is normally off the other normally on, or open & closed. That's the N & P

[@Jyoung5200]

Nice video. Just fyi when testing continuity positive and negative don’t matter. You can touch either one to either side.

[@dwirizkihobbytekhnik7555]

This is mosfet N chanel or P chanel ??

[@verox43]

Which mode is "Contintuity"? :D

[@ninjasauce8855]

I think I have a bad mosfet on my brand new TattooF4S. That really sucks. Have you noticed how close they are to the motor pads? They are almost touching them! I kept thinking, "theres no way those are mosfets!"- because it looks like they are actually touching the motor pads!

[@riccdago]

tks for the info... Really usefull

[@DavidHanniganJr]

What happens if you touch the gate to any other pin while testing continuity?

[@DroneMesh]

David Hannigan Jr. You can enable the gate and give you false positive test.

[@joshuanorris5860]

I think the voltage regulator is blown on my esc for my 1/18 truck.

[@karlosp02]

Hello everyone, does anyone know how to find data sheet for 4606 850MN mosfet.. or in general where u find those things.. is there a way to know which one is n and p one .. thanks in advance if anyone has got time to answer me i would appreciate it alot 😊✌️

[@CareLESSmAyhem]

Are you going to do an aomway fatshark module mod? It'd be interesting to see that.

[@fotoamgamgfoto3695]

wow thanks! +nice receiver :)

[@DoubleA_AMAfpv]

Great job!

[@KassioLM]

Awesome job...

[@keitharoo1962]

The first thing I always do is check the contentuity.

[@nadau5027]

Great job thanks

[@normansyah208]

Nice n very helpfull

[@MRAXELGRINDER]

great video

[@dronereviewman9580]

o come on now let's stop meshing around ha ha ha .........👍GREAT POST👍

[@christianprogrammer9131]

Dat Tiny tipped prob though Am I right

[@pacificnorthwestpilots6050]

Love vids like this, thank you for breaking it down for us noobs! 👍

[@ytchannel2057]

Nice video

[@bennieleip579]

eej drone mesh that receiver that you use is out of stock is this one also good? www.hqdrones.com/remote-control/receivers/frsky-xsr-receiverits a dutch shop btw bij bg was this one also out of stock :D

[@mrmagoo6178]

Mosfet test good but motors don't run

[@Samiam_ariel]

thanks bro but its continuity not contintuity

[@h2o-fpv623]

Cool men wao good to know men

[@bunnykiller]

con ten new ity

[@darrenstettner5381]

Con-ten-ewity

[@JoshWithrow]

Contituity

[@Clynikal]

Josh Withrow yeah that was killing me too. Otherwise great video.

[@CripSkillz]

Me to lol

[@joetom9429]

the Bad Mosfet is very Clean, The Good Mosfet has soldering Lead splattered all over... Okey... ..

[@mdowney14]

Con - ti - new - it - ee 😁

[@DroneMesh]

Back when this video was out.. This was the correct way to pronounce it.. XD

[@BuzZ.]

Yeah I cracked the code ;)

[@minkorrh]

I think most people are better off buying an entirely new esc. After you pay for the mosfets, heat gun, solder paste, and the inevitable mess that will be made of the board by someone with zero experience soldering SMD components, .......just buy the ESC.

[@redeemed1228]

Argle Bargle maybe but if your capable of doing it why not. Will save you money in the long run and if it’s already broke doesn’t really matter if somebody breaks it more

[@Irigoyen4]

J. Slater: Name-calling does not help your point (or much actually). I merely pointed out the obvious, no assumptions about education level or intelligence. Sorry it doesn’t meet with your approval. Happy?

[@stewiecasserole12]

Mad vid @Drone Mesh. I've of this tinyurl.com/ycd44qk8 and motor 3 won't run. The Mosfet test tells me all the Mosfets are fine. I've tried another motor but same result. Continuity exists between the ground pin on the FC JST pin plug with all esc Mosfets...what should I do next? Have ordered another esc to keep going but would like to trouble shoot this seemingly flawed one and either fix or toss it. Great vids...keep them coming.

[@DroneMesh]

1. check the signal wire for motor 3 if damaged and try changing to motor 2 pad on FC. If that works could be the signal pin 3 on FC is damaged. Keep me updated

[@DroneMesh]

Also check this video and test motor outputs with LED. kzbin.info/www/bejne/l2PKkoZ9itOlgbM

[@stewiecasserole12]

Sweet. Will do and def get back to you. Got a mad week at work coming up so may not be looking at it until next weekend (Australia...late Sunday night now). Thanks again.

[@bwanaPele]

Thanks for the video. I have a Hobbywing 4 in 1 esc with a bad Mosfet (I think) or maybe it just slid out of place due to heat or a crash. Here's a picture of it: photos.app.goo.gl/13F7uTWnF0rJ9h6P2 Mosfet I need: goo.gl/4VNe5j In order to replace it I guess I'll need to buy a rework station next (suggestions?) I'd like to test it using your method but there does not appear to be a way to test it without removing it. Do you see a method? Thanks again for the video. "I learned something new today!"

[@KmanRuffian]

Contintuity.

[@Jslayer209]

CON-ten-ow-it-tee

[@Robwheddon2010]

CONTEN....UITY

[@bull_shannon_fpv]

5yrs ago I could have fixed my shit. I suk

[@j.finesseflights1403]

That grammar tho??

[@FarmerFpv]

What about it? Are you trying to sneak in an insult? Strong people don't put others down... They lift them up. 😉