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Welder99's avatar
Welder99
Explorer
May 29, 2017

Yamaha 2000 problems

Hello all, to begin with I purched 2 Yamaha 2000 generators used very little. They came with the wire kits to hook two together . I powered both up at high rpm then turned on my AC . One generator revved up and would not power the AC . I didn't have the generators on power saver mode. They were both at high rpm at the time I turned on the AC. One generator went to yet a higher RPM. I also have a Honda EU 3000 that I hooked up and it had no problem running the AC. I used my volt meter and it showed 124.7 volts at the hook up kit. So I'm confused as to why they wouldn't power the AC . Also I have the soft start capacitor on the AC. Any input would be helpful. Thanks.
  • j-d's avatar
    j-d
    Explorer II
    May 29, 2017
    Not sure if this is a helpful question, or a proof of a lack of knowledge.

    Does the parallel kit for the two Yammies, allow you to switch the connections at the generators? If you can do that, does the problem "follow" one generator, or stay with one "leg" of parallel kit?
  • Pipeman's avatar
    Pipeman
    Explorer
    May 29, 2017
    I have 2 honda 2000s with the twinning cables. They are colour coded. Do you have them plugged into the same ports on each genny? Just an observation.
  • bucky's avatar
    bucky
    Explorer II
    May 29, 2017
    Why are volts being discussed instead of amps? A 99 cent extension cord from Dollar Tree will deliver volts but it won't run my ACs.
  • wnjj's avatar
    wnjj
    Explorer II
    May 29, 2017
    Measure the voltage coming out of the cable with it connected to only one generator, and then the other. This should verify the cable and both generators' ports are good.
  • 1320Fastback's avatar
    1320Fastback
    Explorer
    May 29, 2017
    I've been having problems with my 2 Yamaha 2000s also.
    One of them, the same one every time will go into overload and then the a.c. shuts down.

    I'm seriously considering even though the trailer is new getting a high efficiency A.C.
  • Bionic_Man's avatar
    Bionic_Man
    Explorer
    May 29, 2017
    Have you checked the oil in the one that will not rev up? If it doesn't have sufficient oil, it will only run at ECO RPM. At least that is the way mine works.

    I also had trouble when mine were on an uneven surface.
  • MEXICOWANDERER's avatar
    MEXICOWANDERER
    Explorer
    May 29, 2017
    It's too easy to get fooled because of measuring voltage from the generator not in circuit. Measure voltage at both generators.
  • Trackrig's avatar
    Trackrig
    Explorer II
    May 29, 2017
    It sounds like something isn't right with the daisy chain wire kit. It sounds like only one generator was trying to carry the load since the other one was not increasing its RPMs.

    You can / will get 124.7V off of one generator or both, but it sounds like only one was putting power into the wiring harness and therefore you were only getting the 2000 watts from one generator, not the combined wattage needed to power the AC.

    Bill

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