Billy, Yeah I know you and most are NOT fans of Generac RV Generators, but that's what was in the one I bought and works good EXCEPT for one problem which I want to ask you about. Its a Generac 4 KW Model 4700 in the RV
It starts fine, runs smooth and powers the AC or Microwave or coffer maker or hair dryer all fine, no black or blue smoke, no sputtering, no coughing, nice clean warm gray NON Fouled spark plug BUT after maybe 30 minutes if running the rooftop AC IT SHUTS DOWN........No its NOT out of fuel, NO the ignition system is fine, ITS LIKE A SUDDEN SAFETY SHUT DOWN such as low oil pressure or low oil (NEITHER of which it is I don't think but????) and I suspect it may be a safety thermal shut down due to overheating ??????????? It ONLY shuts down after 30 mins of AC use, when its real hot outside, NEVER any other time and AC works fine plugged to shore power.......
Ever run across a faulty safety thermal limit switch that's opening although it shouldn't ??? Think of reasons for overheating ?? Its clean and free underneath where the screen is where the fan circulates engine cooling air??
What you think is wrong or what should I try ???? Sure I like Onans but this is what I'm stuck with lol. If I cant fix it I will deal with that when the time comes. On several Onans I had the circuit control boards go bad and that's a high dollar fix
John T
It starts fine, runs smooth and powers the AC or Microwave or coffer maker or hair dryer all fine, no black or blue smoke, no sputtering, no coughing, nice clean warm gray NON Fouled spark plug BUT after maybe 30 minutes if running the rooftop AC IT SHUTS DOWN........No its NOT out of fuel, NO the ignition system is fine, ITS LIKE A SUDDEN SAFETY SHUT DOWN such as low oil pressure or low oil (NEITHER of which it is I don't think but????) and I suspect it may be a safety thermal shut down due to overheating ??????????? It ONLY shuts down after 30 mins of AC use, when its real hot outside, NEVER any other time and AC works fine plugged to shore power.......
Ever run across a faulty safety thermal limit switch that's opening although it shouldn't ??? Think of reasons for overheating ?? Its clean and free underneath where the screen is where the fan circulates engine cooling air??
What you think is wrong or what should I try ???? Sure I like Onans but this is what I'm stuck with lol. If I cant fix it I will deal with that when the time comes. On several Onans I had the circuit control boards go bad and that's a high dollar fix
John T