I have a 2011 Thor Hurricane Class A gas Motorhome with an Onan 5500 generator and 2 A/C units. The generator cranks and runs fine with the a/c units going for a few hours, but then would trip the 20 amp a/c breaker located on the side of the generator. After asking around, everyone said that it was probably a bad breaker. So, I ordered the new breaker and replaced it. Now the generator will run with the a/c units going for anywhere from 2 to 13 hours and then the generator will die (not trip the a/c breaker). The generator will not restart until it cools down a few hours. It will then start and repeats the whole process again.
(Point of note - the a/c units work fine when they are plugged up.)
Frustrated....I brought it to an Onan certified shop because I really need it fixed quickly for some upcoming tailgating events. (It will need to run from Friday thru Sunday for tailgating.
The shop said it shows a fault code 37. When I asked what that means, I was told that it has something to do with the ignition or coil, but they said they need the generator to die while it is in the shop so they can narrow down the problem instead of just replacing parts that may or may not be the problem. Naturally as you may have guessed....now that it is in the shop, the generator will not die. It has been there for 2 days.
I feel sure that unless it dies and the shop can find the real problem, I will get it out tailgating and she will bite the dust and leave me sweating in the 90 degree Louisiana heat.
Anybody have any suggestions for a code 37?