EF3000iSEB Quite putting out electricity

[Green Jeep]

I just bought a used Yamaha Generator model # EF3000iSEB.  I thought I got a great deal.  I started it up and it runs great.  When I got home I hooked it up to my camper and no juice.  I began to investigate and found that 2 wires running from the battery to the POWER UNIT UR were hooked up backwards.  I checked the fuse on the POWER UNIT and it was blown.  I replaced the fuse on the power unit and still no electricity.  What else could be the problem.  None of the lights on the power unit come on when running.  The only place I am getting any power is the DC out put and I am getting 24 volts per my Fluke meter.  I am a certified electrician and would like to know how to run diagnostics on the boards.

I would greatly appreciat any help.

[YamahaGenuineParts.com]

I am no Electrician, but I would stongly suggest a Yamaha Service Manual if you do not already have one.
Manual $102.95
Shipping $19.00 with a tracking # anywhere in N.America
Yamaha warranty is 2 years from date of purchase, is it possibly still in warranty ??
Regards Speedy
email "[e-mail]"

[Green Jeep]

Most likely the warrenty has ran out.  I bought it used.  Dose any one know where I could borrow a service manual.  I live near Gatlimburg, TN

[Green Jeep]

I just ordered a service manual at my local Yamaha shop for $40.  I made a mistake on it was the power unit also known as a DC-DC converter, for the boost that has 2 wires hooked to the battery.  The positive wire was hooked to the ground on the battery and the ground was hooked to the positive on the battery.  It did blow the fuse on the power unit.  I replaced the fuse.  I think this may have destroyed the control unit though.  I can buy a brand new generator just like this one for $1,999.  I would like to fix this one if feasable.  If I have to order both the power unit and the control unit it looks like it will cost me more than a new generator.  Where can I find these units resonalbly priced?

Thanks

[YamahaGenuineParts.com]

Hello, have a look at the picture I have included and i will look into the price and availabilty of parts for you, just let me know which parts are required.


Thanks for using YamahaGenuineParts.com.

Regards Speedy,
YamahaGenuineParts.com  Blog

[Green Jeep]

I know for sure part 40 is bad.  #44 had a blown fuse.  I am not sure if it is working since I put a fuse on it.  Thank You.

[MXTex]

GreenJeep,  Not too long ago I went through an extensive troubleshooting process on this model generator.  Following the service manual step by step, I reached the conclusion that the control unit was bad (#40).  I was so convinced it was the problem that I sent it away to be repaired only to find that it couldn't be repaired.  They sent it back.  Long story short, the control unit was fine.  Perhaps yours is bad but in my experience, they rarely are.  I'll have a look at my service manual when I get home.

[Green Jeep]

I received my service manual I ordered from Yamaha.  They sent me the manual for the 3000ISE.  Now I have the wrong manual.  

[Green Jeep]

I went ahead and opened the manual and it is for both the ISE and the iSEB.  The problem with now is them manual is not very technical.  It does not tell how to test these boards.  It only give basic information.  I think I will just sell the generator as is and forget it.

[MXTex]

How much are you selling it for?

[Green Jeep]

I have invested a little over $500 in it right now.  I would like to get that back out of it.  Make me an offer.  I will throw in a service manual with it.

[Salty]

Green Jeep, do you still have your generator, where are you? My green jeep is a FC 150

Gary