Generator Breaker???

[TheArthurs]

Just got our 2005 Itasca Meridian P39K back from the shop where we had a few things done.
1. Repaired hydraulic line
2. New entry step
3. New water pump
3. Correcting the BIM hookup that was not done correctly when we had someone else do our Lithium install so our starter batteries would not drain when parked AND our house batteries charge when underway.

Now our generator shuts down after a minute if running. I'm thinking that something may have gotten messed up in the process of mucking around with the BIM work. Trying to troubleshoot it now and can't locate the circuit breaker for the generator. We've looked at the end of the bed and in the front of the coach under the hood (above Geny)
Is the circuit breaker labeled specifically for the generator or something else???

Thanks for helping us out.

[Eagle5]

Perhaps this video would help?
Eagle5

Onan Generator Circuit Breaker Reset

[creativepart]

I don't see how your problem could be the generator's circuit breaker - all that does is turn AC power on and off between the generator and the transfer switch.

Turning it off doesn't turn off the generator. The gen will run just like normal with the circuit break off - you just won't have any electricity to the coach.

The hard part will be figuring out if your genset troubles are just a coincidence of timing OR related to the work you've had done.

When your generator shuts down, the lights on the start/stop switch on the genset blink a code that can help you find the issue.

Of course, there are two or three easy things to check first:

1. Do you have more than one quarter of a tank of fuel in the RV?
2. Is the oil low in the generator?
3. Are you connected to shore power when you start the gen?

#1 the fuel line to the gen is at the 1/4 tank level of your fuel tank.
#2 The generator is set up to shut down if the oil level is low
#3 Your transfer switch is generator priority - so if you are plugged into shore power when you start the gen the transfer switch will automatically change from shore power to gen power after about 30 seconds. A transfer switch malfunction can interrupt this change over and this could possibly bog down your generator.

When another thing breaks down after you have had some work done on some other part of the RV it's natural to think the two things are directly related - but is flawed thinking. Sometimes that is the case, but it's just as likely that the timing is a coincidence.

[TheArthurs]

Yes. Great sound advice. Initially we thought it was #11...before we understood how to get the code.
I have since found the fault is #33 which indicates low coolant or inverter heat sink (inlet/outlet obstruction). I'm going to check both now.

[TheArthurs]

Okay...so we've checked the coolant level and ensured there is no obstruction of air flow. What we found was that the coolant level is at the MAX/Hot level and it's definitely cold as we've not run the geny. Can an overfull coolant level be causing this????

[AFChap]

Originally Posted by TheArthurs

Okay...so we've checked the coolant level and ensured there is no obstruction of air flow. What we found was that the coolant level is at the MAX/Hot level and it's definitely cold as we've not run the geny. Can an overfull coolant level be causing this????

Don't think overfill would cause it,
but air bubbles in the system can. Did you have the diesel coolant changed recently? That's when it happened to me and the service place did not properly "burp" the system after filling. If so, my manual told me how to do it.