Yamaha EF3000iSE Inverter Generator (Part 2) - No Power Output Repair?

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Published 2022-06-07
This generator was another junkyard pick. Part 1 was spent troubleshooting this generator to determine why it was thrown away. Turns out it runs and makes power, but the sine wave is distorted and not able to spin a fan. I was able to locate a used working inverter module on eBay. Lets get it installed and try it out.

Part 1:    • Yamaha EF3000iSE Inverter Generator (...  
Part 2: (This video)
Part 3:    • Yamaha EF3000iSE Inverter Generator (...  

Generator Model: EF3000iSE (7WL-28197-E0)

Control Unit (Inverter Module) Part Numbers:
7WL-8A210
7WL-8A210-10-00
7WL-8A210-16-00

Visit My Amazon Store:
www.amazon.com/shop/jamescondon

Oscilloscope: amzn.to/3Mvk5tg
Multimeter Oscilloscope: amzn.to/3moeavy
Kill-A-Watt Meter: amzn.to/3NtkGwY

I use Harbor Freight Super Heavy Duty Degreaser in my ultrasonic cleaner.



3 Phase Generator, 7WL-28197-E0, 7WL-8A210, 7WL-8A210-10-00, 7WL-8A210-16-00, Abraded Wires, Carb Clean, Carburetor, Dirty Sine Wave, EF3000i, EF3000iSE, EF3000iSEB, Fixed, Generator, Green Light, How To, How-To, Insulation Test, Inverter Generator No Power, Inverter Generator, Inverter Module Installation, Inverter Module Repair, Light Flickering, Low Power, Mouse Damage, No Power, PCB Depot, Potting, Servo, Small Engine, Troubleshooting, Wiring Repair, Yamaha

All Comments (21)
  • @wjl1988504
    We have used the youtube.com/post/UgkxOTeIs0vv4_9B5hsmnLsk9r930uDQL… 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!
  • @alansmith4734
    30:26 An Electrical Tape Tip that I learned from South Main Auto: When applying electrical tape in a confined area, simply unwrap the length of tape that you intend to use off of the roll of tape and wrap it around a small 1/4" socket. Wrap the tape around the wire, off of the 1/4" socket.
  • @jcondon1
    Released this one a day early! User error. Better get those Ads up if I have any chance of a part 3.
  • @mdunbar04
    Don't worry about being monetized for your hard work and great Video content. I would watch a few adds in order to have a great weekly James Condon video.
  • @wildefox1478
    It's unfortunate those damaged wires are what caused damage to the inverter module, nice work James, I hope to see a part 3!
  • @vegasfordguy
    I bought this same generator used on Craigslist about 10 years back. It started, ran great and made power, but about 5-10 percent of the time it would all of a sudden start running terrible, sounded as if it was being choked. I tried just about everything, never figured out why it would randomly act up. I made my money back, but wasn't the flip I thought it would be. I've never had a Honda give me any trouble except for bad fuel in the carb. Your videos are excellent! I watch all of them. I'm impressed that you torque everything! 👍
  • Nice joint on the pilot light, just a little trick I use, is to put the tape on before the heat shrink. Works well, and the tape cannot undo with time, heat and engine fume
  • @FarmCraft101
    Here's a tip. A spring loaded center punch is a nice way to pop out those stubborn float pins, even better to blunt the punch a bit.
  • @Balsamancnc
    Hi James, that output on the scope is actually straight up half wave DC but because you have the scope set to AC the scope "centers" whatever wave form it sees around zero. Switch the scope to DC and you will see the wave form is actually all positive (or all negative). You are correct, there are some blown transistors in there.
  • @haneyoakie14
    I learn more from my failures than from my successes. Perhaps a viewer has a dead one of these and will contact you. Many YouTube channels would not post a video of anything other than 100% successful projects. I appreciate your content showing the problems and the strategy to overcome them, including the ongoing issues because we struggle too. Your content give us better quality because we are going to face these problems too. Thank you
  • @Marcelo-56
    10:15 When the engine oil is really bad, I recommend changing it first using a cheap common oil, run it for about half an hour and then (while still hot) drain it to the last drop and then add the new oil recommended for that engine. (the first oil is to clean the lubrication circuit)☝
  • @homesummy8034
    This explains why there were ads in this video when there are usually no ads in your videos. With the end goal to make enough money from YouTube to cover the cost of the inverter module, I gladly will wade through the ads to help out. I echo the others who have posted here in hopes for a part 3 with good news. Best of luck James! As usual, your videos are a pleasure to watch. I routinely look forward to Thursday mornings (well, Wednesday this time), to watch your newest post. Tony
  • @timd1833
    Something about your videos that give me the feeling of accomplishment, even tho you are doing all the work. Being older and chronically ill, I don't mess with this sort of thing anymore. Thumbs up!!!
  • @zrkn1
    Your level of patience is amazing, and that's all I will say.
  • @FliesLikeABrick
    James thanks for circling back to this project. One suggestion, if you did end up repairing this and had a bad inverter left at the end... or if you parted this machine out and have a bad inverter in your hand --- For special (rare and/or expensive) parts like this that are beyond your capability to repair, consider putting the failed inverter on eBay for some cheap price, with all your diagnostic observations and conclusions shared. Someone else may have the means to diagnose, repair, or use the bad inverter -- or can learn from it in the process of drying to de-pot and repair it, so it's worth putting it on eBay cheap instead of in the waste/recycling stream. My $0.02 -- a lot of people could be doing this with broken items, that other people may see benefit from repairing or learning on. The goal being to divert the waste out of a waste stream, rather than it being something you/I would expect to make money on selling for repair.
  • @xLTxVEGAx
    I don't mind if you monetize your YouTube videos. You've provided you time and expertise to all us viewers, so if watching a few advertisements means that you get to properly repair equipment I'll be more that glad to do so.
  • @tomschmidt381
    Wow what a repair saga. Hopefully the ad will bring in enough to purchase a new inverter module. It would be nice to see it running after all the work you have done so far. Watching this makes me thankful our backup generator is old school. Hopefully all that I will ever have to do is replace brushes.
  • i like that you speak loud clear everybody can understand you and learn thanks for your videos
  • Thank You... Thank You.... THANK YOU for teaching me to stay as far away as possible from Inverter Generators.... and Thumbs Up on the Great Video.
  • @chox2001
    A good thing came out of this video. The guy de potting is an honest genuine guy. Maybe put him on your list of trades you can trust. The video had so many twists and turns It added to enjoyment. The thinking time in between videos gives you time to re think. That’s amazing how it gave you more ideas. Im a big fan you are in my opinion the best generator surgeon I have seen.