Yamaha EF3000iSE Inverter Generator (Part 1) - No Power Output (Bad Inverter Module?)
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- เผยแพร่เมื่อ 28 ก.ย. 2024
- This generator was another junkyard pick. I do not know any of the history on the machine. Does it have a bad engine, bad generator or a bad invertor control module? Lets find out.
Part 1: (This video)
Part 2: • Yamaha EF3000iSE Inver...
Part 3: • Yamaha EF3000iSE Inver...
Generator Model: EF3000iSE
Control Unit (Inverter Module) Part Numbers:
7WL-8A210-16-00
7WL-8A210-10-00
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Inverter Generator overload light flashes, no power and throttle does not respond.
I’m glad we’re friends as none of that electrical jargon made sense!!
There are a great TH-cam channels that can help with that. Big Clive th-cam.com/users/Bigclive, Mr. Carlson's Lab th-cam.com/users/MrCarlsonsLab, Photonicinduction th-cam.com/users/Photonvids, jeffescortlx th-cam.com/users/jeffescortlx, Bassguitarist1985 th-cam.com/users/xboxer1985 and The Post Apocalyptic Inventor (earlier videos) th-cam.com/users/ThePostApocalypticInventor
@@jcondon1 Big Clive is awesome and lives on the isle of white.
@@jerrybootneck1736 doesn't Clive live on Isle of Man??
@@John-cn8jv I stand corrected John yes he does, I was on a trip to the Isle of White the weekend so still got that on my brain lol
@@jcondon1 If you confuse him, sending him to Carlson's channel would push him over the edge.
We have used the th-cam.com/users/postUgkxOTeIs0vv4_9B5hsmnLsk9r930uDQLu_Y for probably 30 hours with our camper and it’s been great! The noise level is really only noticeable when running the AC and other appliances like the microwave, hair dryer, or coffee pot. It’s not huge like other ones and it has wheels so even at 90lbs, I can move it!
What a treat on a Thursday morning!
This is the Achilles heel of inverter generators and is why I don't like them. I would do as others have suggested and cut the large caps off level with the potting compound or just above it. Then dig out what's left of the innards while being careful not to damage the leads. It might be worth soldering some wires to the leads and mounting the new caps externally, at least for testing. It's certainly worth a try!
Its always bad caps. Genius!
Just came from part 2, don’t know how i missed part 1……going back to part 2 now👍👍👍
You can remove the potting compounds and it might be something you want to try. Some types can be removed just by heating to a certain temperature.
Nice, I know people at my dump too and I usually go an look at the computers people throw away and sometimes get some good stuff.
I like these Yamahas! Despite the same MSRP and features as a Honda EU3000iS they typically don't sell for as much on the second hand market but still can fetch $1500 in nice shape.
Now that I finally got through the video I do see the predicament. Although you mention that this specifically needs that your range of inverters that may not be the case. I had an EU2000is with a bad inverter. Instead of paying $500-600 for a genuine inverter I ended up finding a 2000 watt Chinese clone with a blown engine for $40. Through some MacGyvering despite not being able to get the wiring diagram for the Chinese generator I was able to make the inverter work for the EU2000i and still retain overload, eco throttle and low oil shutdown capabilities. When I did some searching through Hondas manual it appeared to me most of the brains were in the small control box that held the three lights so if I could match the wires up properly I was able to use an inverter not intended for that Honda. I ended up selling that cheap to a friend and it still works great. Without doing a lot of research I might take a gamble on a cheap inverter module not me at for that year range just to see if it would work but I haven't done any research on these as I have not had an inverter module fail on them. Without having genuine parts it makes it tough to sell to a customer and feel good about it though.
If you have any interest in getting some detail how I used non OEM inverters in place of the original let me know and I can shoot you an email. I have done it twice.
I would like to get a gander at the capacitors and both sides of the board. You can buy hot knives that screw into a soldering iron. You can slowly melt and scrape the potting material off. Before multi layered boards came out we were trained on removing potting material to access the solder joints. Even if the board is multilayered, you can use a hot knife to loosen the bottom of the capacitors from the board.
Might check to see if you are getting AC or DC coming from the output on the plugs. lights and the resistive heater will work on both ac or dc. The motor on the other hand will not due to it being a shaded pole motor. But i would bet that the inverter is putting DC to the plugs.
Very informative, this is why I don't like inverters or inverter welders, you never know if it will work the next time you start it up.
Inverter welders weld really nice but I would wrather have a transformer welder as they hardly ever fail. I have a Miller 200 dx inverter Tig and stick welder, it is a very reliable welder as far as inverter welders go. But when they go out its never less than about $1,500 dollars to fix it. It cost new about $4,300. New. And I only use it to weld ALUMINUM, I use my cheaper welders for steel.
Great Video. Thanks
Wished you lived closer to missouri... i have a hobart 4500watt gen welder that spit n sputtered and stopped charging, had a few guys look at it thay cant figured it out,,, your aweaome ive watched almost all of your vids. Keep up the good work.
Thanks. Wish I lived closer.
If it wasnt so heavy id mail it. Lmao...
The bad looking Capacitor would be my guess for the bad inverter board. That capacitor is swollen, a sign of a bad capacitor. Deporting is something I have never done.
Good luck with this unit, like all Yamaha engines it sounds great even with the old oil, probably never been changed, and you're right someone might have what it needs
The engine does sound great.
How in the world did I miss this video.
I would have liked to see you check voltage at the plugs. With the heater, I could see the power light come on but no fan or heating coils. So I am assuming it was putting out some power, just not what it should have been. I am with you though in thinking its the inverter which, unfortunately is not an easy fix. Thanks for running through your troubleshooting steps with us though.
I will probably do a follow up. Want to check the other single phase outputs as well as the ac and dc output on the outlets. Will also hook the oscilloscope.
Sure wish I had that inverter James . I would send it your way ! You can replace those Caps if you take them apart and get to the legs coming out of them . Hope you get it going ! ENJOYED..
Thanks Shawn
I always steer my customers away from inverter generators. I understand their significance and why we have them however the inverter boards go bad quite often and it's more expensive to replace the board then just to buy a new generator. I've got four generators in my parts room right now that all have bad inverter boards. 1 Yamaha, 2 generac and a Ryobi
The generator environment (lots of heat, high current, vibration, sometimes moisture and corrosion, rodents making nests and peeing, etc. ) are not the best thing in the world for delicate electronics. People run engines that are literally 100 years old (or more) but electronics tends to have a more limited lifespan - caps leak or dry out, solder connections come lose, chips fry., etc.
With that bad capacitor sticking up like that I would certainly replace both those capacitors potted or not. One could certainly dig down through both capacitors to get to their connections and easily solder in two new capacitors saving this expensive hummer.. couldn't hoit.
Given the value of a functioning unit of that generator, I would definitely hold on to that one and see if you can find a parts machine, or another one that needs an engine. I would at least give it a few months and see if you come across something.
Still have it and working on a solution.
Try cutting the cap off near the bottom and grab the leads from the inside for a new one. Anytime you see visible physical damage to a capacitor, it is almost certainly bad.
Just questions as your knowledge and abilities far exceed mine. 1) why does the inverter need to be the exact same part? To me power in and power out wouldn't care about the module part number. 2) if push came to shove and you couldn't find anyone to repair the module, since the capacitor is mostly external could you carefully mechanically tear it apart and get to the electrical leads. That in theory would allow you to hack a new one in place. Assuming the problem is in fact the capacitor.
Sometimes they keep the same model # but completely rearrange things internally - not just the inverter might be different but also the connectors, the inputs and output to the various lights and switches, etc. It's not impossible that a later model Yamaha inverter (or even one of similar size from a Chinese clone) could be made to work but it might require some work. Sure if he can get another inverter for free or $100 it's worth a short but you're not going to order an $1,100 incompatible inverter on the chance that you can make it work.
Those space heaters have a position switch that turns off the heater if it is not straight up and down. Set it down on flat surface and try it again.
I am sorry but based on the the evidence that the light was lit with some acceptable brightness and that it did not lost a lot of brightness when you switched the heater on suggests that the evaluation result that the genset cannot supply enough power to operate the heater is faulty. This proves that the output waveform is distorted to the point that the proper magnetic field cannot build up inside the fan motor to turn the blades. I think the fan motor most likely is a shaded pole induction motor that requires a AC supply with proper frequency and balance. A light bulb will operate happily with just DC supply as well as with AC and it does not care about the frequency and the balance as far as voltage with proper RMS value is provided.
I think the output waveform would have worth a check with an oscilloscope.
I agree. And have actually done that. Video will be publish in a few weeks.
James, I know everyone is telling you that the capacitors are bad but I can tell you from experience that inverter units fail on their input stage. If you have DC volts coming out of the outlet I bet you that half or multiple mosfets in the input stage have failed. This is indicated by the flickering light. The shorted mosfets are turning on and off very rapidly until the overload circuit protection turns on. Believe it or not the output stage is under the least amount of stress with an inverter. Those output transistors may very well be damaged as well including the drive circuitry.
I have a series of videos where I repaired a very expensive samlex power inverter and I got lucky because one of the original engineers sent me parts to fix it but Yamaha is not very forthcoming with any of their schematics.
Best of luck unpotting the resin. They may have specifically formulated it to where the temperature is so high before it breaks down that it could damage the board and it's intentionally done that way a lot of times because they don't want people servicing their pcbs and possibly copying the board schematic. It also allows them to keep the cost of their replacement inverter units very high. You should see the cost of an eu7000 Honda inverter module that is some serious mad money.
Will make another video on it at some point. Want to measure the output at the outlets. I would tend to agree that DC is coming out based on what the space heater. That tells me most likely the 3 phase AC is getting rectified into DC but not properly inverted. Also want to test the single phase voltage output. The single phase orange wires feed the inverter circuity. I have a lead on a used inverter module so want to be 110% sure that its nothing else but the inverter.
@@jcondon1 i think a new inverter module is the ticket. Chances are the mosfets have shorted on thus the DC is coming through. Looking forward to the next video!
Well, I tested the old module and the positive part of the sine of the wave is basically DC and the negative part is AC, but gets distorted under load. Links to the pictures down below. The space heater element will glow under load but the fan not spin. The good news is I found the correct model year inverter module (used working condition) for an EF3000iSEB. My model is the EF3000iSE. Although all the connectors are the same, the inverter will not power up. I think it is waiting for the DC-DC boost converter to come online (which I do not have). Unfortunately I think I have to return that inverter module. Not able to find the pinout of the boost connector plug from the inverter. Was hoping to trick it into thinking the boost module was present. Back the the drawing board.
Boost Module:
drive.google.com/file/d/16aRxibyWWdORW7CfvIwlmd8gYHW7ZZwA/view?usp=sharing
Oscilloscope Pics:
drive.google.com/file/d/1bDtGsJjY7LiBHfhlyccVxP54FjcetK6g/view?usp=sharing
drive.google.com/file/d/1LTTa6TV2xaQRXh8V-A58Jf-VeNEB-kgz/view?usp=sharing
@@jcondon1 that stinks. Yeah no eay to get the pinouts. Its a long shot but maybe yamaha tech support can help
@@Bassguitarist1985 cannot hurt
Im in the same boat. I have a Eu1000 with a suspected bad inverter. Unfortunately its potted just like this and the value of the inverter is more then the generator is worth.
In the future if you ever come across this, this might save your butt... Since the top of that capacitor was clearly blown... and If it was just the capacitor, you might have just gotten lucky, I have done this many times, and you just cut the top off the capacitor-mid of the capacitor, yank the layers out(make sure to leave the leads and tabs connected. And soldered new ones right onto the board or even the capacitor leads that are then exposed, if you don't go too ape on it.
Otherwise you could depot that easily enough, it's a little time consuming, but just Mill out what you know your safe to on a Bridgeport or something, and remove the rest by hand. Let me know if you want help?
Doubt anyone will read this tbh.
We addicts read them all Rayote. Its always interesting to see what people think. Your approach sounds feasible.
wow you sure know how to test those things. I have trouble testing a battery. Great job and I would keep it for a while as you never know what might pop up. Thanks for the video's.
I missed a few tests. Might have another go at it.
You Can Use You'r Vom Meter
To Check The Inverter Modual.
Good luck on finding what you need good thing it’s a small unit easy to store.
Muchas gracias, una ultima pregunta
la que tengo le puse carburador nuevo
original, le ajuste valvulas tiene chispa me
da 60psi de compresion pero no enciende
que usted me podria decir que verifique
Muchas gracias agradezco su ayuda.
I'd love to send you my EF600 to play with. Suitcase generators for the win!
Is there a setting for how tight a spark plug setting should be I’m always afraid of snapping the plug off while putting it in or out
Insert the new plug and tighten it up by hand as far as it will go, and then use a plug spanner to tighten it by an extra 2/3rds on a full turn, that’s all you need to do.
Hi, just a comment, I've noticed quite often that you refer to the meter as having an "internal resistance" . The meter has a very high internal impedance. The resistance that you are referring to is that of the measuring cables, which has to be subtracted from the measured indicated value. I note that you rely greatly on this measurement for your assessments. For greater accuracy I would suggest that you invest in a meter with better resolution. 😏🇬🇧
Have not needed greater accuracy yet. Normally when stators and rotors fail it is an open circuit or short circuit. For higher precision I can always apply a constant current and measure the voltage. I do have a few nicer meters, but the displays do not show up well on camera and they all shut themselves off automatically while I am using them. That said, I am looking for one that stays on, with an easy to read screen that has high precision measuring resistance.
Thanks for the video! Very helpful.
Several videos around demonstrating depotting using boiling water.
yea, cut the caps out carefully and solder new ones in. I've done this 100s of times on potted stuff like that. They are likely the culprit
I could remove the epoxy, by heating with a hot air station. But i'm not sure if i can fix the inverter. By the look of it the inverter goes unstable at lower input voltage. So it could be the filter capacitors that's bad and causes the voltage in the inverter to goes up and down triggering the low voltage cut off of the inverter. Feel free to correct me if i'm wrong. And the fact that you can't power the fan on the heater but able to power the ac light, probably means that inverter output dc instead of ac. The H-Bridge might be shorted
That was my thought as well. At lower voltages and lower RPM, more capacitance is required to hold the voltage up between cycles, and given the age, the bulk input capacitors are likely worn out.
Hi James. I love your videos. I am working on a Predator 3500 inverter generator that this video helped me with.
Customer complaint was that it died with a load plugged in after only an hour of use. And also very difficult to pull over, even when new out of the box. Brought it to me because they could never get it started again.
I disconnected the inverter assembly (no visible damage) and sure enough it pulls over easily and fired right up.
I smelled an electronics burning scent after running for only 30secs. I didnt have my meter with me, but the 3 stator wires are marked with a 120v wire tag.
Would it cause damage to the stator to run the engine without it plugged in? Thanks for the help.
It should not damage the stator.
That capacitor is called the bulk capacitor. The three phase is rectified to about 300vDC then inverted to the final voltage.
Perhaps you should have checked the frequency (not Hertz) of the output, the light on the heater worked. The fan is the only thing that requires AC. If the frequency is wrong, then everything else might work, but not the fan. Could be the waveform of the inverter output is not suitable for simple motors like this.
Working on a a part 2. It is a waveform issue.
Take that inverter out and apply some de-potting fluid. Sometimes it can be dissolved away without damaging the circuit.
Will try something myself unless someone more qualified steps forward.
Great video as always. If you can't find another low cost inverter, then maybe try cutting the capacitors off and replacing with a piece of wire in-between. Did you film replacing the hydraulic jacks on your RV? I haven't seen it yet, so was curious.
Am seriously considering cutting them out and running wires to a remote capacitor. RV jacks for now are deleted from the RV. Probably will pay the RV shop to so this job or there will be a very noticeable gap in the generator videos.
Gonna throw another odd problem at you James. Onan p4500i not running steady. Choke fix everyone shows on them was not an issue. Control module exchanged to be sure steppers were moving correctly. Still seems like the choke and throttle being run by the stepper motors isn't doing its job. Any ideas? Is there an easier way to contact you in the future besides commenting on your videos? Thank you in advance.
On a Desktop computer go to my channel about page and near the bottom there should be a button to get my email address. By the control Module you are referring to the inverter? If still having problems running steady then would consider the pulse generator. Have not worked on one of these, but it it has a CDI then wither the CDI or the pulse generator could cause confusion in the control unit.
I would still pull the float bowl and valve cover to check for dirt and clearance.
Maybe after he gets the inverter going. The engine clearly runs more or less OK and there's no point in making it perfect if the electrical side can't be fixed.
It also needs an oil change and a good tune-up, but no point until the power issue is sorted out.
HALLELUJAH, I was going into DT's.......... now, where's my coffee.
Your lucky mine canadien is worth 2500. so im sitting and waiting for one that the engine goes
Nice video thanks
I know this is off topic but what is your thoughts the Predator 9500 inverter generator? There are several other brands that are blue that are nearly identical copies. I am hoping for years of good service.
It’s a good price, but have seen a few already with failed inverters so probably will not last as long as a Honda or Yamaha.
And this is why I tell people not to get inverter generators! It seems like an awesome idea until the inverter takes a crap and then the machine is junk whereas on a conventional generator there's far less to go wrong and the parts are much less expensive!
My guess is mechanical problems. Get the engine running right and electrical issues may disappear.
Doc., cant wait to see what will transpire.
I understand Y 3-phase AC, and I understand that an inverter creates AC from DC. I don't understand why an inverter would generate in 3-phase AC in order to produce both DC and single phase AC output. Is 3-phase generation enough more efficient to make up for the expense and energy lost in rectification and regulation?
The inverter would be doing the same job whether the input was single phase or three phase, so three phase has the advantage due to better efficiency and power density.
Inverter generators should really be called rectifier-inverter generators. The first thing that they do is rectify whatever AC is coming in. A 3 phase AC generator is more efficient because you make power 3 times for every revolution. Non-inverter home generators are not 3 phase because people don't need 3 phase power at home and there's no easy way to make single phase AC out of 3 phase AC. UNLESS your rectify the phases to DC and then reinvert to AC. In the old days they would do this with a motor-generator - 3phase motor driving a 1 phase generator (or vice versa).
The advantage is the generator can run slower without changing the frequency of the AC output. In idle mode the generator runs slower.
Sorry I can't help!! I'm in a different country. If we lived closer, I could depot the inverter, and repair it, as I've got an oscilloscope. With this, & a multimeter, the faulty components will be easy to find.
Too bad. What country are you in? Would be a fairly easy repair I think once the potting is removed.
@@jcondon1 I am in Australia
Time to learn how to un-pot modules and do some reverse engineering :-) Or find a hardware hacker out there. I wish I still had my shop where solvent fumes went unnoticed...
Any way of knowing how many hours were on this unit?
1200 to 1500 for the inverter ouch
Can u help me with figuring out my kohler 4k
👍
at 15.16 thear green and yellow wire to the case look rusty
It is, but that is only a ground wire. Would not cause this issue.
Glad you spotted your initial mistake around the third wiring's voltages - I was shouting "BUT THERE'S A DECIMAL POINT!" at the screen. :)
Got to stop using auto ranging mode. Not the first time that decimal tripped me up.
@@jcondon1 I see what you did there..."Tripped" me up LOL
Manual ranging meters have their virtues.
I WAS SAYING THE SAME THING.
To be honest I haven't seen a handheld multimeter that indicated values below 1 with just a decimal point. I think it is a silly thing to introduce a 100000% error because of this kind of laziness failing to implement proper display of measurements.
And the very instant you take that machine to the dump……a new inverter module will pop up on line for $299.00….lol
That is pretty much a guarantee.
You could replace caps, open them around bottom where leads come out, cut wires and solder new caps to stubs. Caps do go bad and will make internal voltages un stable causing internal shut down.
I was thinking the same thing. Those two caps are probably about $15, for both. It would be well worth the effort to make a couple of leads to try it out.
I have done that on large potted caps. Most of the time I just pull the top off with a pair of pliers and the legs will remain in the board to solder the new cap to. I have used two short pieces of insulated wire to connect the cap and fill the hole with RTV and push the new cap part way into the hole and the RTV will hold it there.
those caps seem to be good and it should not cause dc at the output. i suspect few dead mosfets on the output inverter full bridge .
Almost certainly dead MOSFETs. I don’t know how potted that inverter board is but replacing MOSFETs is not difficult and it’s easy to figure out which ones are bad
@@bluethumbdiy4735 the board can be depotted by cooking it .
I’m an electrical hobbyist. And do electrical work full time on complicated equipment. One of my favorite things todo is to repair things that are “not repairable” if you suspect those caps you can use force and remove them. Add little pig tails and remote mount some caps. (Only do this if your sure that the inverter bored is dead) with that being said it’s so much fun to bring junk back to life!!!!
Open the inverter up and check for bulging capacitors and corrosion. A lot of electronics from this era use substandard chinese capacitors that leak and corrode the circuit board.
That's the Problem! The inverter is potted and you can't repair them.
I think they do this to protect the electronics from moisture and vibrations (or perhaps to prevent a repair attempt?).
@@klaust.2769 It is VERY EASY to unpot electronics!!
@@klaust.2769 Soaking in MEK or acetone and a heat gun will break down the potting material. it will scrape off. PIA but doable.
@@dublindave5795 Thank you, i will try this next time!
@@dublindave5795 I have gone that route before but it removed a lot of component markings as well.
Y have repaired several of these, Its the 2 big caps. you can yank then out whit pliers, and solder two new caps on the resisting connectorleads that will pull out of the caps... its a bit off a fiddly job but it worked two times for me on two sets. (those where the eu versions of 230 volts. Dont think its different on the 120 volt sets..) had the same syndrome. also had one whit a broken wire...
Pretty sure it is those caps. Grind them off at the base with a Dremel. The solder the two wires to two new caps. 10 min job and a few bucks on caps. Worth a try?
Pull a "BigClive" on it Potted circuits ? so what that one cap was blown the brown plastic cover is off and that cap is bulged best to do both but watch out for pcp
Last time it took me about three evenings (working like 1-2h/day) to depot an inverter and repair it. The de-potting is the trickiest. I used the hot air rework station to soften the compound and picks and tweezers to clean the board. It can be done cold. Dental picks and light hands. There are lots of SMD components there that can go MiA with a steel pick. Maybe depot just beneath the IGBTs.
Even I, with 20+ years of experience in electronics, I broke a resistor that I had to scratch and measure under a microscope to identify it's value and replace it.
These inverters shoot their IGBTs because they have crappy flyback diodes or none at all and surges from inductive loads toasts them.
People use these inverters to power their fridges and vacuum cleaners or pressure washers. A few hiccups in the load and poof...
Swap the IGBS's with bigger and sturdier ones. *Add flyback diodes* across E-C on every IGBT transistor in the H-bridge that can handle 600-1000V and a decent current, like 30-40A.
Do not be shy when choosing the IGBTs. If the originals were like 750V 25A put in 35A or better. It's nice to have them in the same mounting size but putting to247 instead of to220 might worth the extra work. They are not too expensive.
*No matter if one or two or three out of four IGBTs are blown, they all must be replaced with four new transistors.* The ones that measure fine and seem to work are surely damaged internally and will fail shortly, blowing the new ones along.
I am 100% there are blown IGBT transistors in the H-bridge and you're feeding DC into the outlet and your light bulb but the AC motor in the space heater cannot turn on DC. I am sure the resistor heated up, tho...
I've spent the equivalent of about 40 usd in parts to fix that inverter and the bundled 1.2kw generator. It is well worth the work.
Also, the microcontroller that does all the PWM (the sine wave generator), protection, signaling and throttle control seems to be still fine. I saw the throttle is controlled.
That microcontroller can eventually fry and then you realy have a dead inverter because no store will have a pre-programmed chip to sell you. Stop testing and stressing the inverter in the generator. Those power transistors can fail in various progressive manners. They have driving circuitry behind them and then there are the frail microcontroller pins. If one high-side IGBT shorts collector-to-grid... it puts 300+V into the totem driver which can die and short those volts in the microcontroller.
I don't know you or your channel. YT randomly recommends :P I can recommend an EU store for looking up parts. Nothing elsewhere.
If things above sound chinese... point the inverter to an electronics technician that is seasoned in power supplies, computers, automotive electronics and not a _mainboard replacer._
Hello! Thanks for all the information. Im trying also to repair an inverter module, it doesnt have any power output. Is there something to soft the epoxy? Thanks again.
@@David-oi7vg 120-140°C air
@ thanks
MICHIGAN would love to have somebody besides just a mechanic checking carburetor and valves to look at my Kipper ig3000. It starts it runs and can run 1500 w heater. But the eco does not step down the motor, and it just seems to now run rough and loud it never did that and I started it every two weeks. Unfortunately I didn't know you should let it run with a load I always let it run without. If anybody knows of a good electrician for generators maybe in combination with combustion in case that's the problem. I put a new carburetor on no change. Not sure if it's the stepper motor air filter fuel filter spark plug but I did not check the valves yet. Motor squeaky clean even put back the old carburetor as the new one did not change anything. Don't want to run this with it being so loud and shaky. If you know somebody I live smack-dab in the middle of Michigan I could sure use direction to somebody is knowledgeable as the gentleman who did such a wonderful job on this video.
if you have current why cant you hot-rod it by using a battery inverter , or better still mid night wind mill controller , & ues it to feed a supply to crag a battery bank utilising a Midnight a controller. it cost nothing but it produce's sufficient hi voltage to be used to crag a bratty bank. Or even run a 1000 wat battery inverter there is always a way to skin this cat son . hell I've often run a inverter of a battery driving a car alternator with a electric mother to keep the batter bank up & the inverter to Mack my tea LOL the point i think is what can cage one battery can charge 10 batteries. So when we have no mains.! Power we can run the light's of the Battery inverter . so we have both svelte charger & hi volte's current WE need to ues to cover it by rectifier to fed a battery bank by mens of a controller The bit may be to out of date or to expensive to by But are there way of adopting it son lets see how you put it to ues . Les England , It cost you nothing what can you by of the shelf you can adapt . I in Briton we have a saying if it won out how can we bog it up to power the house once i had an d saw mill no longer in ues. & a gen set with no motor I put the saw mill engine to drive the gensets & we had power for the house. we lived of grid in 1962 on the dad did in 2008 . (90 years old) & when i went home to sort out is kit I fired the very same siystom up for light in the house to see by . I thorts at the time of a saying dad had If it is not brock leave it allow . he did in is sleep He had run his house on that old bog-job all that time servings it regular & not abusing it , There is a moral their summer I think . { HE WAS SNL CONTENT IN IS LIFE }.
I noticed some very rusty looking ground wires. Mouse piss will do that. FYI..
What Face does this man with hairy sexy legs, arms, and hands Have ?
Old Blue needs some new wheels ? Been dragged around neighborhood a few times ?
Wow...a little bit of checking revealed Yamaha still makes this generator and it looks exactly like this one. That must say something. I hope we get to see round two!
Yes and no. They make a generator with the same model # but the internals are different. This happens a lot with internet routers - even though it's the same model #, v.1 and v.2 and v.3 will have completely different internals.
Caps in inverters, converters, VFD's work very hard and subject to fail due to heat, need to be of the highest quality, but not always supplied. Pain in the ass to replace when when potted, but worth trying, considering the cost of a replacement inverter. Ive repaired VfD's and converters many with bad caps as they do have a finite life compared to most other components on the circuit board.
Good to see one disassembled to some degree, looks like a nice quality piece of equipment. But like so many modern higher tech devices, the parts costs can be outrageous in price. I hope you can find a module at a decent price to fix it.
A quick way to check if the capacitor is your problem would be to cut the capacitor case off and gut it out. Get down to the terminals and solder a replacement in with pigtails. It's a temporary fix of course. 😃
If you soldered in new caps and then secured them against movement and vibration with silicone, cable ties, etc. this could be a permanent repair.
Yeah I would definitely put my money on that blown capacitor the reason why that sticker is gone is because it popped. Even though the metal seal on the back isn't damaged it could have shot out the side, it could have just overheated but I'm more than willing to bet replacing that one capacitor would probably fix it. But with the with a good mini die grinder and a good digging bit you could probably cut that potting out desolder both of those caps and replace them. They only pot them so you can't fix them!!!
It is worth a try. Cannot make it any worse and caps are cheap. The big thing is removing the potting compound without causing any damage to the board.
As it certainly could be there capacitor, I didn’t see any of the electrolytic sprayed around the area as you would normally see once that vent blows, it could potentially just be the slit in the plastic cover that allowed the disc to drop out. Have you considered the last link in the chain? What if your electrical delivery device is the simple thing that could be bad? The outlet!Sometimes outlets have internal brass legs that become loose over time. Either alligator clip 1/2 of a female side of an extension cord to the wires running to the outlet, or pull the outlet out and install a brand new one and see if you now have steady power…
@@jcondon1 Just cut the can open level with the potting. Isolate the 2 leads to the the circuit board and solder in a new cap.
That would do it.
@@jcondon1 I'd be very surprised of those two caps aren't already on order, knowing you.
Hi James, I have tried to remove the epoxy from an inverter module and I have finished destroying the module by breaking the board or pulling some small resistors with the epoxy. I would dig in the region of the big ripped capacitor cause he could be replaceable. If the issue is elsewhere (smaller capacitor or MOSFET), that could be an impossible task. Again, check the big capacitor and see if any sign of leak. If he is bad, try to get to the board by digging in the capacitor itself. You need to get to the board 2 contacts and weld to wires to a new capacitor.
You have nothing to lose James so try de-potting the module in boiling water, I did this with my granddaughters CDI unit on her 125cc Scooter. The potting compound comes out in lumps. There's a guy on TH-cam who de-potted a module for a computer if memory serves me right and he cleaned the whole board so he could work on it. Like I say you have nothing to lose and another video in the making. Good luck from England.
Went and found the video for you.
Depotting Electronics with Boiling Water - TH-cam
Interesting idea. Cannot make it any worse.
@@jcondon1 there are just a couple of videos on here regarding de- potting and both with success. Go for it and maybe video it.👍
@@jcondon1 Before you depot the whole thing just try replacing the 2 caps.
Typical inverter issue. Cost is ridiculous for any inverter module. I just looked at a Honda EU3000. Blown cap on inverter module. Actually not that bad for a new one at under $700. I did not remove the inverter section and would not even attempt to repair it by replacing any cap. Gave the customer a price to replace inverter and sent it back to him. I fix lots of generators and welding equipment. The inverter equipment is always the same story. Too expensive for the parts, modules, circuit boards. The stuff is mostly throw away. Here’s a tip for you.....Never use a NON-Resistor spark plug in an inverter/generator. The RF can interfere with the inverter modules proper operation. This is no BS.....Had a machine sent to me in a basket, all apart. I replaced the inverter module and it still didn’t work. 3 phase input power from power unit was good. Was able to speak to someone from the machines builder and he pointed me right to the issue. A non resistor spark plug was in the machine. A very expensive mistake by the machines owner !
Did you check both receptacles? Possibly the connections on the receptacles, voltages and load, both hot and neutrals, I had one with similar symptoms, found both bad breaker/ and burnt neutral feed to all receptacles, also check grounds.
Wow was found at a dump 😳 what a find if it's fixable would be a nice money maker @James Condon
Any recommendations on Yamaha SC2000I gen. that only produces power for 8 seconds after startup them nothing (engine runs perfect)
23:45 never change the range on your multimeter with it's probe connected to anything. Doing this can kill your multimeter very easily. I have killed 2 meters doing the same. , Turn your multimeter on first set the correct range and then connect it to where u are trying to measure.
221 Volts? really? looks to me you did not see the decimal point, actual voltage output .221Volts statistically ZERO!
Here we go. This is a rebadged generator made in China under license with the Yamaha badges. Would've been better off to get a Harbor Freight Predator version that is cheaper and probably made in the same factory.
Also when I did put new caps in where that obviously blown one is I would certainly replace both of them with Nichicon not some flaky Chinese caps.
I am thinking a bad outlet.
Try direct connecting or using a known good outlet.
Time to put it one the shelf and wait for one with a blown engine to appear
One more thought, Is there any use for the obviously very noisy 3 phase, 220v power?
I expect the inverter was potted for weather protection, but it is a shame that it means you cannot test the components. The capacitors do not look to have bulged, but they could still be bad and would be the first components to check.
I love the sound of the engine as it makes the whistle sound when turned off.
You did all you could to diagnose the issue. Sad that it was the inverter.
Dave.
if it was just for weather protection they could have used a clear jell filler that could have been easy to remove and diagnose
Money maker,the cost of a new one can out way value of older models..
Learn how to "de-pot" potted caps? They are mostly out in the open and one looks like it may have taken "the way of all electrolytic caps" already.
I have a Predator 3500 inverter generator and I would like to ask you what jet size should I use at 6000 feet
this video helped me. I have a bad Powerhouse 3100 inverter and I am pretty sure it is the inverter board. I just bought a used unit that had a bad engine. With any luck, I can make one good unit out of the two. I posted an ad on the local buy / sell (kijiji) and offer 200 for a parts unit or I would sell mine for $200. If the other guy had a blown engine issue, he had a chance to recover some money or buy mine as a parts unit
Wow was tossed out and the engine runs makes me wonder if inverter died 🤔 @James Condon
If anyone has an inverter board for sale please let me know?????? email me!!! I think I need one too!!!!
I am looking for a inverter generator but I want one that can be repaired if need be. I noticed on most of the cheaper ones it hard finding shops to work on them. Can some one please give me some advice
Wow its not even trying to run the heater interesting 😕 🤔 makes sense the inverter is dead
Chasing dow electrical faults can be a time consuming and tedious endeavors, even with a schematic. Also, a lot of solid state components are in series and if one fails, they cascade into other failures. I know you know this.