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Cocky_Camper's avatar
Cocky_Camper
Explorer II
Aug 12, 2019

Onan Marquis 7000 - No Output Power

My grandpaw has a 95 Pace Arrow with a Marquis Onan 7000 model 7NHMFH261050 and it has no output power.

The ATS went out a few years ago, and his RV repair guy installed him a 50amp end on the generator to plug the RV power cord straight into instead of replacing the ATS.

That worked for several years with no problems when he ran the generator. Now the generator has no output power at all. The generator starts and runs great still though.

Anyone have any ideas on anything simple that it could be for us to check?
Class A
    • jamesbrady5's avatar
      jamesbrady5
      Explorer
      Jul 26, 2024

      The control fuse end is missing so the 10 amp fuses won't work. I need to replace holder but can't find it.

      • way2roll's avatar
        way2roll
        Navigator II
        Jul 26, 2024

        You are responding to a thread that's 5 years old. Did you have a question? if so, I suggest posting it in a new topic.  

  • way2roll's avatar
    way2roll
    Navigator II
    Aug 12, 2019
    Should be a breaker on the generator itself - check to see if it's tripped.
  • RLS7201's avatar
    RLS7201
    Explorer II
    Aug 12, 2019
    2 circuit breakers on the right side as you face the generator. Not out in the open. You'll have to look close.
    Also, that generator is an NHM, not NHH..........
    I have the same generator on my 95 Bounder.

    Richard
  • Cocky_Camper's avatar
    Cocky_Camper
    Explorer II
    Aug 12, 2019
    RLS7201 wrote:
    2 circuit breakers on the right side as you face the generator. Not out in the open. You'll have to look close.
    Also, that generator is an NHM, not NHH..........
    I have the same generator on my 95 Bounder.

    Richard


    You are correct with the model. I edited that. I did not see any breakers when I was out there yesterday, but I will certainly take a closer look when I go back, which will be next week as I will be out of town this weekend.

    Thanks!
  • Bruce_Brown's avatar
    Bruce_Brown
    Moderator
    Aug 12, 2019
    Check the brushes. Years ago friends had one that would run but no output. We took it out and dropped it in my garage. Found one brush cracked. $26.00 later it was working as advertised.
  • Sam_Spade's avatar
    Sam_Spade
    Explorer
    Aug 12, 2019
    way2roll wrote:
    Should be a breaker on the generator itself - check to see if it's tripped.


    This.

    And I assume you have checked to be sure that the cord is firmly plugged into the gen outlet ??

    I have had good dealings with the Onan/Cummins dealer in my area.

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