Why is my Onan 4000 fault code 36?
Why is my Onan 4000 fault code 36? The fact that it runs for around 10 min. could also indicate a low coolant level and the electronics control board is over heating and that could also be turning off the generator. Sometimes that board will offer up a 36 code also. This is some information on the QG-4000 unit. There is also a Microquiet 4000 series. Rich. Thanks for your input. What's the best way to reset an Onan generator? Turn off Breakers on Generator 2. On the Generator push STOP twice rapidly followed by one rapid push to START....