Forum Discussion

Dwight45's avatar
Dwight45
Explorer
Jul 12, 2015

Generator break in?

Does a brand new generator need a break in period? The genny in our new Attitude (5500 on an) quit after running 30-45 minutes. Would not restart, when I opened the door to the compartment it was very hot. It did flash codes but the factory paperwork was not included in our information packet. Plenty of gas in the tank,less than an hour of run time. Another genny thread suggested fuel pump problems. Did it just get too hot and shut down? I'll try restarting this morning and running with no load and see what happens.
Thanks
Dwight
Toy Haulers
  • NC_Hauler's avatar
    NC_Hauler
    Explorer
    Jul 12, 2015
    Keep us posted...Onan, seems to me, has a very good reputation whether it be gas, LP or diesel fueled generators.
  • arhayes's avatar
    arhayes
    Explorer
    Jul 12, 2015
    Yes - there is a.break in covered in the owners manual, plus monthly schedule recommendations. I'd just seen the other thread and wonder if yours is t also a fuel pump issue. If it's under warranty I'd get them to handle it for you.
  • Dwight45's avatar
    Dwight45
    Explorer
    Jul 12, 2015
    Oil is good. I ran it about 45min no load everything was fine. I did have the Gen door open. I'll try running it under load later. Haven't had any luck downloading
    the manual. Internet not to good here.
    Dwight
  • Vulcanmars's avatar
    Vulcanmars
    Explorer
    Jul 12, 2015
    Make sure there are no obstructions under the unit where it exchanges air. On our first TH the factory goobers only cut out half of the floor panel for the gen and it would only run about 30 min and shut off. (overheat)
  • edatlanta's avatar
    edatlanta
    Explorer
    Jul 13, 2015
    copeland343 wrote:
    Generator door must be closed or it will overheat per the Onan Manual.


    x2
  • nayther's avatar
    nayther
    Explorer
    Jul 13, 2015
    Dwight45 wrote:
    Oil is good. I ran it about 45min no load everything was fine. I did have the Gen door open. I'll try running it under load later. Haven't had any luck downloading
    the manual. Internet not to good here.
    Dwight


    when you say generator door are you referring to the front cover of the generator or the compartment where it is mounted? If the former, then I'm sure it overheated, that's part of the cooling system, if the later then it should have no affect.
  • edatlanta's avatar
    edatlanta
    Explorer
    Jul 14, 2015
    nayther wrote:
    Dwight45 wrote:
    Oil is good. I ran it about 45min no load everything was fine. I did have the Gen door open. I'll try running it under load later. Haven't had any luck downloading
    the manual. Internet not to good here.
    Dwight


    when you say generator door are you referring to the front cover of the generator or the compartment where it is mounted? If the former, then I'm sure it overheated, that's part of the cooling system, if the later then it should have no affect.


    I agree. If the RV compartment door open all get is more noise.
  • Dwight45's avatar
    Dwight45
    Explorer
    Jul 14, 2015
    When I said genny door I meant the compartment door. I did not run it without the front panel on.
    Dwight

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