Was about to tear down my chainsaw because it wouldn't run . Thank goodness for your video because you made me realize I might have the brake on. It works fine after switching the brake off. Thanks!
Awesome on so many levels; theoretical understanding, analysis, logic, and manual skills working with the microcircuits. I say this as one who has seen many technological revolutions in electronics. I started out my career designing vacuum tube circuits. Thank you for taking the trouble to record this video!
Thanks so much for your comment! I have always thought vacuum tubes were very fascinating. I was lucky enough to have one instructor in the late 90's that loved talking about tubes and his past working with NASA. Everyone else in the class complained because it was just a basic level electrical theory class and he went so deep! I absolutely loved it, lost as I could be, but loved it! Your career sounds fascinating! Thanks again!
sure amazes me you can solder those little chips on that board. Once it was determined the board was broke I would have just bought a new one. Awesome work and trouble shooting thanks for sharing.
Great video even though its 4 years old .I have an ego that runs - but as soon as you put it on wood where the chain meets resistance it stops. This video helped me think through some things.
Cost of repair vs cost of new? Most of us would just buy another one - we're a throw away society. All this was impressive - glad that someone understands it all. Well done. However, this makes me want to keep running my gas tools.
All very good points. Just to make sure I explained it fully here. To be totally fair and unbiased, I purchased this broken off eBay. I do own a 16" and have had zero issues with it. This 14" I really bought just to see if I could fix it, so fair enough it failed on someone. Although I had to take some time to learn more about how it works and troubleshoot, it only cost around $1.79 each for the mosfets used to repair it. So I was happy with it for the price of around $45 for the broken item? I meant in no way to imply that Ego saws fail alot, nor did I mean to promote. I did however do a review on the 16" that I bought because I was truly impressed. Hope it clears up a little and thanks for comment.
@@ThriftyToolShed Yes - I understood your situation. My point was that all these electronic fixes are totally beyond mere mortals and that it could indeed cost $100 to replace a $1 part. And that's assuming you could even find someone who knew how to do it. As appliances, tools, etc. have become more electronic and less mechanical, the rules about fixing things has changed! Keep up the good work - it was impressive seeing you in action.
@@ZENO357 Its with everything what have at least a bit of "brain" or some level of automation. More electronics, less mechanical componens. As electronics repair guy, i'm happy. Electronics imho are more flexible, then a mechanical stuff and much cleaner to work on.
I am ordering parts to fix mine (It has the same failure) - however the specific mofset is out of stock. Might you have time to help me pick the best alternative? I was gonna pick the one with the closet match on rds on.. but am not by any means an expert.....
Yes, it's been very hard to find these in stock. I have had excellent luck when finding the same package with a very similar RDS(on) and Current rating. Seems to be getting even harder to find.
@@ThriftyToolShed EGO speced out a pretty top quality mofset. This is my thinking. Does it sound electrically correct? I am going to prioritizing matching the RDS.... and accept voltage/amp of 80/80 vs 100/100. because and individual mofset is not every seeing 100 V or 100A. Why: battery is only 56 V, the overall protective fuse was 40 amp, and the current is spread between multiple mofsets. They mofsets are failing because of overheating the heat sync vs overamps. BTW your video was so inspiring!. I hate throw stuff away, and my budding knowledge of of electronics couldjust follow (but not lead) what you where doing!
@@AndrewNock I do believe the 80V/80A will work fine. If I had to guess the higher voltage and current will help with all the high current up and down and even possible counter EMF when stopping etc. Still the 80V should be fine. I think some controllers have the 75V version (some blowers) if I remember correctly. Thanks so much for your kind comment. Positive comments keep me going more than you will ever know. I get a couple bad every now and then, but then a comment like this is like light in the darkness. Just trying to share as we learn together and it feels good to fix something with lots of life left in it. Merry Christmas!
Lol. Not exactly. I was hoping to share this experience with what I found and some steps and used in the troubleshooting even though it was a first and alot of unknowns involved for sure. Hopefully we can gain by it and more people who do love to work on electronics will be available to work on these in the future. I would love the "shade tree mechanic" so to speak to not go away.... Let's learn to fix things no matter how they design them. One thing is inevitable, these will fail. Are we going to toss for a loss or repair with some care? Just trying to share as we go...
When it's a hobby, I don't count it as costing me, but to each his own! I have alot of similar videos.I try to keep useful tools etc. from ending up in the landfill prematurely. Hopefully by somewhat capturing it on video it helps someone along the way. Its just something that became a hobby over time! Thanks for your comment!
@@handlebarhorse This is why companies like Apple keep making crap that breaks. Because people are happy to turf it into waste and buy again. I love that people spend a few hours of their time fixing something which won't go to waste. A few dollar components saved a lot of plastic going to landfill.
@@stoojinator You see, most apple product disigned in the way, to make repairs diffucult and almost impossible. as well, hardware disigned that way to be as fragule as it can be. Dropped your cell? Its time for new screen and rear panel. i have no idea why everyone are using this stupid glass all over devices. Anyhow.
I have enjoyed your videos on the EGO products. I have many of the tools and batteries as well. I have many of the slow chargers and I want to know if we can make the EGO slow charger a bulk charger for my other 56 volt batteries that are not EGO. Can we force the charger to put out our needed 58 volts for charging?
I have not looked into the slow chargers really much at all. I have one video repairing a fast charger. I know they use the D-terminal to talk to the pack as well as the T-terminal for the thermistor feedback. So you would have to bypass all the microcontroller which might include current control as well as the cut on cut off. I would think it could be done, but if it would be easy to just build your own instead of all the time to modify this one, I'm not sure.
Hey. Wondering if you know. Are all the ego chainsaw motors the same? I know the 18" is capable of more rpm...unless it has something to do with sprocket. But my (theory) is they are the same just the 14 and 16 are limited by speed control or something. Any thoughts?
And...I bought the 16" thinking if they all share the same motor...less rpm over time would just be easier on the motor. Maybe this is an incorrect assumption.
If I am correct the 14" and 16" are the same. The newer 18" model I believe has a different BLDC in it. They redesigned alot about it for sure. Like you mentioned it has more speed it also has more torque and most likely a much higher current speed controller. I do not have the 18" yet. So I have not taken one apart to know 100% sure though.
Okay! I have use your tutorial and my limited knowledge of electronics to start a repair on the same model. The fuse is done, the dead MOSFETs have been replaced. The saw now runs! (sort of). I am hoping you have a bit of advice for troubleshooting. The motor only starts from certain positions. (the rotor relative to the stator) thanks!
Awesome, one thing to check is if all 3 phases are balanced in current. You may have a Mosfets still not firing for example and causing one phase not to pulse/fire to get the full torque. Be sure to check the small gate resistors for all the Mosfets. I want to say they may be around 100 ohms from my memory, but that may be wrong. These resistors are easy to get knocked off or out of line when working around the SMD Mosfets area and I believe on a similar blower repair I may have shown one of mine move on me and I had to put it back in place. Hope it helps and best of luck to ya!
I bought recent 1800E 18" version and it has tonnes of problems starting with oil splattering and not flowing correctly. Non adjustable oil is no way.I'd go with Stihl Next time..
Man, hate to hear anyone having issues. I have this 14" and the 16" and have had no issues. Stihl makes a great saw for sure. As far as I know Stihl makes there own, and TTI makes the Echo battery stuff.
Thanks for the awesome video. I Have a 16” EGO and it cuts but when there is a load it shuts down. I am going to try and find someone in the area to fix. One shop said it would be hundreds to replace the part. Is there a chance it’s something cheaper? Any help would be appreciated.
The only way I can think of that would be cheaper is finding someone who might be willing to try the repair similar to how I did here. I am not saying it is the same issue, but might be a possible open Mosfet instead of a shorted one. It could also be a bad winding in the BLDC motor also. For that matter even a loose connection somewhere including the battery pack connections that only shows up when under load. The only other option than buying a new part,such as a controller, would be buying a used saw for parts only on Marketplace or eBay like I did this one. It's a long shot of course as they are hard to find and could even have the same faulty part as yours does. Thanks for your kind comment!
Thanks for the fast reply! You seem like a really nice person and the world needs more people like you. Awesome videos and I can’t wait for the next one.
I wish. That's one reason I enjoy trying to repair things so much these days. They are not made to be repaired and it's never any schematics or wiring diagrams available. I try to troubleshoot as much as possible and share what I can on video. If I do develop some part of a wiring diagram on something I am working on I always share it on video. None on this unfortunately. Best of luck to you with yours!
I guess this was abused with excessive voltage, I tested one with 20s li ion, 80v and it not started, but it not was damaged, it still works fine, such motors and controllers are now common, on e bikes, hoverboards, e.t.c. It`s obvious if controller is shorted between rails power switches are damaged, but usually at least drivers are damaged too. Probably controller is easier to find than BMS because the usual fail is battery pack, or tool is mechanically worn , controller can be recovered.
do you have any idea of the wattage of this motor under load? I'm trying to get numbers to compare these with some other chainsaws. Thanks for all of the great videos!
Hi Jon, I do not have any record of test under load on the chainsaws. I have only dealt with the blowers in this manner and I know the newer 650CFM blower can output up to 1200W in Turbo since they will surge up to 20A. I don't have a good idea on the chainsaws at this time. Thanks for your kind comment!
@@ThriftyToolShed If you get a chance to measure this sometime, I'd love to see the numbers. I was about to test my baby makita saw last night, until I realized that I wouldn't be able to pull more than 10A through my meter, and should have brought my clamp meter from where I have it stored. I've been trying to figure out a way to translate all of the claimed "cuts like a 40cc saw" B.S. that they all use, and their claims are all over the map, unfortunately. It would be so nice if they had to tell you the torque and duty cycle of the motor when making these claims!
*Thank you* for an excellent video. I just came upon one of these chainsaws with, I believe, one phase of the ESC gone. When I apply power, the motor stutters and barely turns. With some experience with brushless motors in RC airplanes it has the symptoms of a bad ESC, specifically blown MOSFETs on one phase as you described. (The fuse is still intact). I also found the MOSFETs at the same online shop you did (I see the box in the background :) based on the spec sheet you showed. Did you get the part number off of the old component?
I did. The part number from my 14" model. The 16" will most likely be different. I did put a digi-key link in video description if needed. Thanks for your comment!
@@ThriftyToolShed Thank you again! I have the same MOSFETs (CS1400, so no surprise) so my Digikey order is going in. If this works I owe you a beer! :)
Great video. I have the ego 16”. Does anyone else have bar oil leak, where it leaks internally and drips out of slot between the two case housing halves? Worried that the tank assembly has a defect. Thanks
I wish I had time, I do get asked this often. I do not have a repair service at this time. I work full time+ in an Industrial job and try to have time to edit videos to post. I try to help by posting what I have found with a repair as we learn together. I don't have a lot of time left. I hope you can find someone you know that likes to tinker and hopefully after watching the video can help you out. I wish you the best of luck with yours.
It's more about learning and also keeping things from the landfill. I enjoy learning how they are designed, the challenge of the smaller SMD components and share what I can in case it helps someone else. I don't fix these for a job or side business, just a hobby. Thanks for your kind comment!
My 16"' has been awesome. It works well and is powerful. This is just a 14" that I bought broken to show more about it. It still works very well since the repair. I will not be going back to gas chainsaw for my personal use.
Hi there loved the video I have the same saw and I believe the same problem but I have only a basic multi meter and none of your skills so I was wondering if its possible to buy a new speed controller?
Hi Joel. Thanks for your comment! One of the only places that I know of that has parts for these is jackssmallengines.com and the price for these parts is usually more than buying a brand new saw. Well especially if you price the motor or the controller parts! That is exactly why I shared a few videos about the EGO equipment. To me they are the point of to expensive to simply throw away and the parts are not available or at least not economical yet. I have shard a few repairs to try and help others and I have a video showing adding a cheap BLDC controller to a blower. Maybe not the answer for the chainsaw yet but it worked on my blower. The chainsaw does have the hall feedback. It is controllers out there that may work as well, but I have not done it yet for these. Maybe in the near future.
@@ThriftyToolShed thanks for your reply much appreciated, I took a look at Jack's but couldn't see a speed controller listed. I totally agree with you not wanting to chuck the saw away I feel the same it's super wasteful but Ego don't seem to have made it easy to repair I think like a lot of manufacturers they would rather you landfill the saw and go buy another 😕
@@ThriftyToolShed unfortunately not I bought the saw second hand looks like I will have to have a go at mending the speed controller I am glad I have your video to go off what is the solution that you keep pouring on the board while your desoldering the mosfets it doesn't look like the flux I use?
It is RA Rosin flux. MG chemicals 835. It can be a pain to clean up but it helps so well in distribution of heat as well as helping with impurities and the solder sticks and flows so much better. RA flux is pine rosin so in is sticky. I use paste flux as well but nothing works as well as RA flux to me.
Question. If that's is a 1400W chainsaw driven by a 36V4A battery, for example (let's say 160W maximum power) does that mean the motor drains almost 40A from the battery, or does it stop at 4A and the motor is in actual 160W motor with some clever torque mechanism to make it as powerful as a 1400W motor? Thanks in advance for your reply!
@@ThriftyToolShed sorry I explained myself improperly, everything I wrote was just an example. I just saw most of battery chainsaw are rated between 1000/2000W. Mine is 1000W, for example.
It was just something it has been bothering me for some time. I was planning into trying using an hoverboard battery pack, 28v 4300mha, on my chainsaw, using an Xl4015 as step down (since my batteries work at 20/21v). But then realized if the motor is indeed a real 1000W motor, that means each of my 2 batteries must provide around 25A, way too much for that step down...maybe for any cheap step down...
@@pepegaka7283 Yes that would be a lot of wattage for a step down. The peak torque typically is why the high wattage number like the 1000w etc. It would spike or peak and should come down some while running. Most packs have a fuse limiting the current to over 40A ( long term) in most cases. Some large packs go up to 60A fuse? Since the packs last surprisingly long it seems these don't take as much current to run as blowers. Blowers eat up a battery quicker than most tools...
@@ThriftyToolShed thanks a lot for your clarification. I indeed seen a post where someone was talking about a 40A fuse in his battery pack. You know much more than I do. What would you do, if you had two 28v 4300mh hoverboard battery pack (with their nice xt60 connectors and all the BMS board etc already made ) to use them instead of two original 20v2000mah batteries? I am a bit scared of connecting directly the 56v pack ( 28vx2) on a 40v motor (which I guess is a 36v motor(?).
The first things to check may be the connections on the saw and battery pack and the chain. Make sure the chain is not in a bind. The sprocket and chain if it gets bound up or the brake can cause this.
@@ThriftyToolShed fid many tests have the saw apart did jumper tests from battery to terminal im thinking maybe the high heat cut out but dont know how to test it but thanks for taking the time to read my problem
@@ThriftyToolShed hi, sorry i wasn't very clear. I want to add some speed control to my ego cs1800 as a project - a little bit like the Ego blower, and i see you have tonnes of experience with these tools, do you think its posible to wire in a POT to control speed? or do you think its necessary to swap out the ESC with a more advanced one?
Ok, I see. I know the speed control is similar to the blower speed control with more Mosfets populated due to heavy load, but I am not sure about the input. I would imagine the microcontroller in programmed differently for them, not sure though. It seems a new controller maybe necessary.
@@ThriftyToolShed Thank you! You may wish to put this up at the top with the rest of your helpful links. I'm going through and replacing MOSFETs for an LB4800 right now. Thanks again!
Thrifty Tool Shed I’m 62 and dammit I was born on the Left coast. I’ve had enough of these crazy’s here. Maybe I could learn Georgia English and move. But I’m pretty sure you don’t want anyone from Ca. Wish my grandpa would of staid put in South Carolina.
The crayon in the box between the orenge and da grenn! I have been picked on for bub instead of bulb and soder instead of solder too... The things you don't realize about yourself until you do some videos!🤣
Was about to tear down my chainsaw because it wouldn't run . Thank goodness for your video because you made me realize I might have the brake on. It works fine after switching the brake off. Thanks!
Awesome on so many levels; theoretical understanding, analysis, logic, and manual skills working with the microcircuits. I say this as one who has seen many technological revolutions in electronics. I started out my career designing vacuum tube circuits. Thank you for taking the trouble to record this video!
Thanks so much for your comment! I have always thought vacuum tubes were very fascinating. I was lucky enough to have one instructor in the late 90's that loved talking about tubes and his past working with NASA. Everyone else in the class complained because it was just a basic level electrical theory class and he went so deep! I absolutely loved it, lost as I could be, but loved it! Your career sounds fascinating!
Thanks again!
Just bought a EGO cs1400 today for $5. Of course it doesn't work, but THANKS for the trouble shooting tips. I'm gonna give it a go for repair.
sure amazes me you can solder those little chips on that board. Once it was determined the board was broke I would have just bought a new one. Awesome work and trouble shooting thanks for sharing.
Great video even though its 4 years old .I have an ego that runs - but as soon as you put it on wood where the chain meets resistance it stops. This video helped me think through some things.
Cost of repair vs cost of new? Most of us would just buy another one - we're a throw away society. All this was impressive - glad that someone understands it all. Well done. However, this makes me want to keep running my gas tools.
All very good points. Just to make sure I explained it fully here. To be totally fair and unbiased, I purchased this broken off eBay. I do own a 16" and have had zero issues with it. This 14" I really bought just to see if I could fix it, so fair enough it failed on someone. Although I had to take some time to learn more about how it works and troubleshoot, it only cost around $1.79 each for the mosfets used to repair it. So I was happy with it for the price of around $45 for the broken item? I meant in no way to imply that Ego saws fail alot, nor did I mean to promote.
I did however do a review on the 16" that I bought because I was truly impressed. Hope it clears up a little and thanks for comment.
@@ThriftyToolShed Yes - I understood your situation. My point was that all these electronic fixes are totally beyond mere mortals and that it could indeed cost $100 to replace a $1 part. And that's assuming you could even find someone who knew how to do it. As appliances, tools, etc. have become more electronic and less mechanical, the rules about fixing things has changed! Keep up the good work - it was impressive seeing you in action.
@@ZENO357Thanks so much for your comments!
I enjoy trying to show how I repair somethings, still alot to learn, always!
@@ZENO357 Its with everything what have at least a bit of "brain" or some level of automation. More electronics, less mechanical componens. As electronics repair guy, i'm happy. Electronics imho are more flexible, then a mechanical stuff and much cleaner to work on.
Can those mosfets be purchased by an individual in a quantity of 3
I know very little about electronics but this video was very interesting and I learned something. I only wish I knew more.
Great video presentation. I think it relaxed me somehow. SD cards have different write speeds. An HD camera may need a higher speed
Awesome fix! I have the same problem, slightly newer version has the control fully potted now so I'm just going to use it for parts.
That was masterful! I really enjoyed your presentation and your success!
Great video. I was biting my knuckles, wondering whether you could get er done!
Me too! Lol...😬
made a better video since you won. Happy ending!
I am ordering parts to fix mine (It has the same failure) - however the specific mofset is out of stock. Might you have time to help me pick the best alternative? I was gonna pick the one with the closet match on rds on.. but am not by any means an expert.....
Digi key list about 5 in-stock alternatives. Only one has an equivalent RDS(ON).
Yes, it's been very hard to find these in stock. I have had excellent luck when finding the same package with a very similar RDS(on) and Current rating. Seems to be getting even harder to find.
@@ThriftyToolShed EGO speced out a pretty top quality mofset. This is my thinking. Does it sound electrically correct? I am going to prioritizing matching the RDS.... and accept voltage/amp of 80/80 vs 100/100. because and individual mofset is not every seeing 100 V or 100A. Why: battery is only 56 V, the overall protective fuse was 40 amp, and the current is spread between multiple mofsets. They mofsets are failing because of overheating the heat sync vs overamps.
BTW your video was so inspiring!. I hate throw stuff away, and my budding knowledge of of electronics couldjust follow (but not lead) what you where doing!
@@AndrewNock
I do believe the 80V/80A will work fine. If I had to guess the higher voltage and current will help with all the high current up and down and even possible counter EMF when stopping etc. Still the 80V should be fine. I think some controllers have the 75V version (some blowers) if I remember correctly. Thanks so much for your kind comment. Positive comments keep me going more than you will ever know. I get a couple bad every now and then, but then a comment like this is like light in the darkness. Just trying to share as we learn together and it feels good to fix something with lots of life left in it. Merry Christmas!
Soooo, what you're telling me is, unless you're a Master of Electronic Fu, don't muck around. 😯
Lol. Not exactly. I was hoping to share this experience with what I found and some steps and used in the troubleshooting even though it was a first and alot of unknowns involved for sure. Hopefully we can gain by it and more people who do love to work on electronics will be available to work on these in the future. I would love the "shade tree mechanic" so to speak to not go away.... Let's learn to fix things no matter how they design them. One thing is inevitable, these will fail. Are we going to toss for a loss or repair with some care? Just trying to share as we go...
My gosh, just watched this. It must have cost more to repair it then to go buy a new one!
You are saying the Mosfets cost more than the saw or what?
No.im saying your time does. That's alot of work
When it's a hobby, I don't count it as costing me, but to each his own!
I have alot of similar videos.I try to keep useful tools etc. from ending up in the landfill prematurely. Hopefully by somewhat capturing it on video it helps someone along the way. Its just something that became a hobby over time! Thanks for your comment!
@@handlebarhorse This is why companies like Apple keep making crap that breaks. Because people are happy to turf it into waste and buy again. I love that people spend a few hours of their time fixing something which won't go to waste. A few dollar components saved a lot of plastic going to landfill.
@@stoojinator You see, most apple product disigned in the way, to make repairs diffucult and almost impossible. as well, hardware disigned that way to be as fragule as it can be. Dropped your cell? Its time for new screen and rear panel. i have no idea why everyone are using this stupid glass all over devices. Anyhow.
Nicely Done!!!
I have enjoyed your videos on the EGO products. I have many of the tools and batteries as well. I have many of the slow chargers and
I want to know if we can make the EGO slow charger a bulk charger for my other 56 volt batteries that are not EGO. Can we force the charger to put out our needed 58 volts for charging?
I have not looked into the slow chargers really much at all. I have one video repairing a fast charger. I know they use the D-terminal to talk to the pack as well as the T-terminal for the thermistor feedback. So you would have to bypass all the microcontroller which might include current control as well as the cut on cut off. I would think it could be done, but if it would be easy to just build your own instead of all the time to modify this one, I'm not sure.
Thanks for your comment!
Hey. Wondering if you know. Are all the ego chainsaw motors the same? I know the 18" is capable of more rpm...unless it has something to do with sprocket. But my (theory) is they are the same just the 14 and 16 are limited by speed control or something. Any thoughts?
And...I bought the 16" thinking if they all share the same motor...less rpm over time would just be easier on the motor. Maybe this is an incorrect assumption.
If I am correct the 14" and 16" are the same. The newer 18" model I believe has a different BLDC in it. They redesigned alot about it for sure. Like you mentioned it has more speed it also has more torque and most likely a much higher current speed controller. I do not have the 18" yet. So I have not taken one apart to know 100% sure though.
Okay! I have use your tutorial and my limited knowledge of electronics to start a repair on the same model. The fuse is done, the dead MOSFETs have been replaced. The saw now runs! (sort of). I am hoping you have a bit of advice for troubleshooting. The motor only starts from certain positions. (the rotor relative to the stator) thanks!
Awesome, one thing to check is if all 3 phases are balanced in current. You may have a Mosfets still not firing for example and causing one phase not to pulse/fire to get the full torque. Be sure to check the small gate resistors for all the Mosfets. I want to say they may be around 100 ohms from my memory, but that may be wrong. These resistors are easy to get knocked off or out of line when working around the SMD Mosfets area and I believe on a similar blower repair I may have shown one of mine move on me and I had to put it back in place.
Hope it helps and best of luck to ya!
I bought recent 1800E 18" version and it has tonnes of problems starting with oil splattering and not flowing correctly. Non adjustable oil is no way.I'd go with Stihl Next time..
Man, hate to hear anyone having issues. I have this 14" and the 16" and have had no issues. Stihl makes a great saw for sure. As far as I know Stihl makes there own, and TTI makes the Echo battery stuff.
Thanks for the awesome video. I Have a 16” EGO and it cuts but when there is a load it shuts down. I am going to try and find someone in the area to fix. One shop said it would be hundreds to replace the part. Is there a chance it’s something cheaper? Any help would be appreciated.
The only way I can think of that would be cheaper is finding someone who might be willing to try the repair similar to how I did here. I am not saying it is the same issue, but might be a possible open Mosfet instead of a shorted one. It could also be a bad winding in the BLDC motor also. For that matter even a loose connection somewhere including the battery pack connections that only shows up when under load. The only other option than buying a new part,such as a controller, would be buying a used saw for parts only on Marketplace or eBay like I did this one. It's a long shot of course as they are hard to find and could even have the same faulty part as yours does. Thanks for your kind comment!
Thanks for the fast reply! You seem like a really nice person and the world needs more people like you. Awesome videos and I can’t wait for the next one.
Sorry to bother you because I’m sure your busy but, can you point me in the proper direction for a wiring schematic?
I wish. That's one reason I enjoy trying to repair things so much these days. They are not made to be repaired and it's never any schematics or wiring diagrams available. I try to troubleshoot as much as possible and share what I can on video. If I do develop some part of a wiring diagram on something I am working on I always share it on video. None on this unfortunately. Best of luck to you with yours!
I guess this was abused with excessive voltage, I tested one with 20s li ion, 80v and it not started, but it not was damaged, it still works fine, such motors and controllers are now common, on e bikes, hoverboards, e.t.c. It`s obvious if controller is shorted between rails power switches are damaged, but usually at least drivers are damaged too. Probably controller is easier to find than BMS because the usual fail is battery pack, or tool is mechanically worn , controller can be recovered.
do you have any idea of the wattage of this motor under load? I'm trying to get numbers to compare these with some other chainsaws. Thanks for all of the great videos!
Hi Jon,
I do not have any record of test under load on the chainsaws. I have only dealt with the blowers in this manner and I know the newer 650CFM blower can output up to 1200W in Turbo since they will surge up to 20A. I don't have a good idea on the chainsaws at this time. Thanks for your kind comment!
@@ThriftyToolShed If you get a chance to measure this sometime, I'd love to see the numbers. I was about to test my baby makita saw last night, until I realized that I wouldn't be able to pull more than 10A through my meter, and should have brought my clamp meter from where I have it stored.
I've been trying to figure out a way to translate all of the claimed "cuts like a 40cc saw" B.S. that they all use, and their claims are all over the map, unfortunately. It would be so nice if they had to tell you the torque and duty cycle of the motor when making these claims!
*Thank you* for an excellent video. I just came upon one of these chainsaws with, I believe, one phase of the ESC gone. When I apply power, the motor stutters and barely turns. With some experience with brushless motors in RC airplanes it has the symptoms of a bad ESC, specifically blown MOSFETs on one phase as you described. (The fuse is still intact). I also found the MOSFETs at the same online shop you did (I see the box in the background :) based on the spec sheet you showed. Did you get the part number off of the old component?
I did. The part number from my 14" model. The 16" will most likely be different. I did put a digi-key link in video description if needed. Thanks for your comment!
@@ThriftyToolShed Thank you again! I have the same MOSFETs (CS1400, so no surprise) so my Digikey order is going in. If this works I owe you a beer! :)
Great video. I have the ego 16”. Does anyone else have bar oil leak, where it leaks internally and drips out of slot between the two case housing halves? Worried that the tank assembly has a defect. Thanks
I've never owned a dry chainsaw. They all leak like this. I just tip the unused oil into a bottle before storing and store it on an old towel.
I have the same issue with my ego 14” chainsaw. Do you do repairs for people?
I wish I had time, I do get asked this often. I do not have a repair service at this time. I work full time+ in an Industrial job and try to have time to edit videos to post. I try to help by posting what I have found with a repair as we learn together. I don't have a lot of time left. I hope you can find someone you know that likes to tinker and hopefully after watching the video can help you out. I wish you the best of luck with yours.
My ego chainsaw is making ticking noise and the motor just shacking. Do you know how to fix it?
Not sure, are you saying the motor is shaking like back and forth or rotating but vibrations while turning?
Awesome diagnosing and repair. Although I'm certain your time and repair is worth way more than this China chainsaw
It's more about learning and also keeping things from the landfill. I enjoy learning how they are designed, the challenge of the smaller SMD components and share what I can in case it helps someone else. I don't fix these for a job or side business, just a hobby.
Thanks for your kind comment!
After all this average people like me who know very little about electricals is this a good chainsaw?
My 16"' has been awesome. It works well and is powerful. This is just a 14" that I bought broken to show more about it. It still works very well since the repair. I will not be going back to gas chainsaw for my personal use.
@@ThriftyToolShed Where is no point to going back. Gas is a thing of past.
Hi there loved the video I have the same saw and I believe the same problem but I have only a basic multi meter and none of your skills so I was wondering if its possible to buy a new speed controller?
Hi Joel. Thanks for your comment!
One of the only places that I know of that has parts for these is jackssmallengines.com and the price for these parts is usually more than buying a brand new saw. Well especially if you price the motor or the controller parts! That is exactly why I shared a few videos about the EGO equipment. To me they are the point of to expensive to simply throw away and the parts are not available or at least not economical yet. I have shard a few repairs to try and help others and I have a video showing adding a cheap BLDC controller to a blower. Maybe not the answer for the chainsaw yet but it worked on my blower. The chainsaw does have the hall feedback. It is controllers out there that may work as well, but I have not done it yet for these. Maybe in the near future.
@@ThriftyToolShed thanks for your reply much appreciated, I took a look at Jack's but couldn't see a speed controller listed. I totally agree with you not wanting to chuck the saw away I feel the same it's super wasteful but Ego don't seem to have made it easy to repair I think like a lot of manufacturers they would rather you landfill the saw and go buy another 😕
You are not still under warranty with that saw?
@@ThriftyToolShed unfortunately not I bought the saw second hand looks like I will have to have a go at mending the speed controller I am glad I have your video to go off what is the solution that you keep pouring on the board while your desoldering the mosfets it doesn't look like the flux I use?
It is RA Rosin flux. MG chemicals 835. It can be a pain to clean up but it helps so well in distribution of heat as well as helping with impurities and the solder sticks and flows so much better. RA flux is pine rosin so in is sticky. I use paste flux as well but nothing works as well as RA flux to me.
Question. If that's is a 1400W chainsaw driven by a 36V4A battery, for example (let's say 160W maximum power) does that mean the motor drains almost 40A from the battery, or does it stop at 4A and the motor is in actual 160W motor with some clever torque mechanism to make it as powerful as a 1400W motor?
Thanks in advance for your reply!
Where are you getting 1400W from? It's an older video, making sure I did not say something wrong...
@@ThriftyToolShed sorry I explained myself improperly, everything I wrote was just an example. I just saw most of battery chainsaw are rated between 1000/2000W. Mine is 1000W, for example.
It was just something it has been bothering me for some time. I was planning into trying using an hoverboard battery pack, 28v 4300mha, on my chainsaw, using an Xl4015 as step down (since my batteries work at 20/21v). But then realized if the motor is indeed a real 1000W motor, that means each of my 2 batteries must provide around 25A, way too much for that step down...maybe for any cheap step down...
@@pepegaka7283
Yes that would be a lot of wattage for a step down. The peak torque typically is why the high wattage number like the 1000w etc. It would spike or peak and should come down some while running. Most packs have a fuse limiting the current to over 40A ( long term) in most cases. Some large packs go up to 60A fuse? Since the packs last surprisingly long it seems these don't take as much current to run as blowers. Blowers eat up a battery quicker than most tools...
@@ThriftyToolShed thanks a lot for your clarification. I indeed seen a post where someone was talking about a 40A fuse in his battery pack. You know much more than I do. What would you do, if you had two 28v 4300mh hoverboard battery pack (with their nice xt60 connectors and all the BMS board etc already made ) to use them instead of two original 20v2000mah batteries? I am a bit scared of connecting directly the 56v pack ( 28vx2) on a 40v motor (which I guess is a 36v motor(?).
My 14inch saw starts and immediately shuts off any idea where to look
Worked fine one day left battery in the saw a week later had the problem
The first things to check may be the connections on the saw and battery pack and the chain. Make sure the chain is not in a bind. The sprocket and chain if it gets bound up or the brake can cause this.
@@ThriftyToolShed fid many tests have the saw apart did jumper tests from battery to terminal im thinking maybe the high heat cut out but dont know how to test it but thanks for taking the time to read my problem
Does this ESC ajusting a speed of this BLDC or its just a fixed speed ESC?
It is fixed speed on the chainsaw. Excellent question. I am unsure if the new 18" has variable speed or not.
Do a teardown video about the ryobi cordless angle Finnish nail gun.
Do you think its possible to add a retro fit speed control without changing the speed controller?
I do not understand your question?
You mean leave the original in place?
@@ThriftyToolShed hi, sorry i wasn't very clear. I want to add some speed control to my ego cs1800 as a project - a little bit like the Ego blower, and i see you have tonnes of experience with these tools, do you think its posible to wire in a POT to control speed? or do you think its necessary to swap out the ESC with a more advanced one?
Ok, I see. I know the speed control is similar to the blower speed control with more Mosfets populated due to heavy load, but I am not sure about the input. I would imagine the microcontroller in programmed differently for them, not sure though.
It seems a new controller maybe necessary.
Is there a part number for the fuse?
This is a Digi-key link to the 40A I used in mine.
www.digikey.com/en/products/detail/littelfuse-inc/0456040-DR/2080264
Thanks!
@@ThriftyToolShed Thank you! You may wish to put this up at the top with the rest of your helpful links. I'm going through and replacing MOSFETs for an LB4800 right now. Thanks again!
What’s a light bub?
It's glass and emits light, I keep some on my binch right next to the soder! Lol!
I am so dang country....
Thrifty Tool Shed I’m 62 and dammit I was born on the Left coast. I’ve had enough of these crazy’s here. Maybe I could learn Georgia English and move. But I’m pretty sure you don’t want anyone from Ca. Wish my grandpa would of staid put in South Carolina.
Its plenty room over on the right coast. Come on! I have yankee friends they understand at least half what I say! 😁
First view and comment xD
Dropped my chainsaw and now it wont turn on
Are you sure it's not just the safety brake. If brake handle is ok the switch inside could possibly have worked loose?
@@ThriftyToolShed im absolutely positive it is not that. opened it up and nothing looked broken, but i dont know how to test each individual terminal.
Ok
What the hell is yella?
The crayon in the box between the orenge and da grenn!
I have been picked on for bub instead of bulb and soder instead of solder too...
The things you don't realize about yourself until you do some videos!🤣
Love it, you are amazingly talented. It brought back memories of my grandpa from South Carolina.
I live in Georgia, I work in South Carolina!