I have the 4KW Onan in a '96 Dutchmen. It has run great except that it likes to develop a problem. It will not continue to run after being started. It acts as if the "kill" switch is shorting out. I contacted a shop in northern AL and was told that the Control board is probably the culprit--a $375 replacement!
After doing some investigation, I removed the Control board. Underneath the board is a set of ground wires connected to a multi-lug. One of the wires was disconnected. I reconnected the lug onto the ground. Replaced the Control board and the Generator has been running without incident.