Onan QC 4000 Evap runs no power

markgam

Member
I have a 2022 Torque that has a factory installed Onan QC 4000 Evap generator that runs but no power to the trailer. The generator has previously been able to provide power to the trailer but I stopped working. I checked the obvious items first including the trailer circuit breakers and the generator circuit breaker. I reset every breaker. I checked all of the 12v fuses too. So before I move onto the transfer switch I wanted to make sure that I have exhausted my troubleshooting steps with the generator. What else can I chec
 

cookie

Administrator
Staff member
It sounds like you are on the right troubleshooting track.
I would certainty want to visit the transfer switch. There have been a number of owner reports finding loose, burnt wires there.
You can also use your multimeter to check power from the generator there.
Be sure to come back and let us know what you find.

Peace
Dave
 

markgam

Member
It sounds like you are on the right troubleshooting track.
I would certainty want to visit the transfer switch. There have been a number of owner reports finding loose, burnt wires there.
You can also use your multimeter to check power from the generator there.
Be sure to come back and let us know what you find.

Peace
Dave
We're camping this weekend so I don't have access to my tools but that is certainly one thing i will look at. I'm guessing that the transfer switch is behind the fuse/breaker box under the sink?
 
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