Your top dollar onan rv genset is only as reliable as its weakest linkĪnd that spelled MADE IN CHINA. Increase in temperature above a components rated capacity can cause
You were well into the heat soak cycle and possibly subjecting yourĮlectronic components to temperatures above their rated capacity, any The time it took you to get the gas and attempt to re start the genset The moment your genset stalled out the temperature began to rise. Temperature rise after turning the engine off is what kills the Your problem could be the result of heat soak. > Bypass the fuel filter temporarily, and see what happens. > getting up to sufficient speed to produce enough of it's own DC > in, and it's still connected to the batteries but perhaps it's not > Sounds like a it's producing a *bit* of power when you hold the switch > engine, but maybe there's not enough to get the gen up to speed. Might still be enough gas getting through to start the > varnish have solidified and plugged the filter with a hard coat of > dried out after being exposed to air for quite some time, the crud and > in the filter crud and varnish have been kept in solution. > My primary suspect would be the fuel filter. > changed in the system, due to absence of fuel. > before you ran out of fuel, I would tend to focus on what might have "Stan Birch" wrote in Given the circumstances you describe, that it was running just fine
Genset runs for about 2 min (from Onan 4K manual) Remove all loads (fridge, AC, etc) when starting. The fan housing, something like 4.0BGE-1R/26100F or similar).
#Onan 4000 control board test full
I need to know the full model/spec of your genset (should be on I'll be glad to furnish detailed troubleshooting directions, but Stay running, you may have a control board problem rather than a If the output voltage of the genset is approx 120v and it won't
Rings/brushes -may- be all that's needed. Lucky, the regulator may have survived and cleaning the slip If it's an electronic regulator set and you're -very. Potential problem, and will require cleaning the slip rings andīrush tips. Other - should be approx 25 ohms - much more than 35 ohms is a Rings causing high resistance in the field circuit - remove theĬover in the genset housing behind the air cleaner to expose theīrush holder and measure resistance from one brush lead to the This is usually caused by tarnish buildup on the slip Later (electronic regulator) spec, you -may- have blown the The early transformer-regulated Emeralds (spec A-C), you may haveīlown the diode bridge in the control box. If the voltage is (approx 45v) and the set is one of Output of the genset and see what voltage it actually -is. If that doesn't do it, you need to hook up a voltmeter to the Genset - if it stays running, you have a problem with the remote
Genset control box) and try starting with the switch on the Must -not- have a stop signal from local or remote switch.Īs a first step, unplug the remote connector (right side of 'run' mode and stay running, it -must- be generating somewhereĬlose to the correct voltage, must have oil pressure, and 'stop' signal whether from local or remote switch. Power, ignoring the low oil pressure switch, and ignoring any