Forum Discussion
wpatters1229
Jul 17, 2023Explorer
valhalla360 wrote:
Where are you looking at the breakers (pedestal or internal panel)?
- If the pedestal, you should be plugging into the 30amp outlet. A 20amp might work but it's marginal. It's not separate for the microwave.
- If it's the internal breaker panel (inside the RV), the 30amp should be the main breaker that kills power to all the other breakers. They often don't do a good job of labeling.
Are you trying to run the microwave at the same time as the air/con? If yes, there's your likely problem.
Easy way to check if it's the microwave breaker is to flip it off. If the clock on the microwave goes off you found the microwave breaker.
What is the voltage arriving at the RV? It's relatively common for park voltage to sag during peak demand on hot summer weekends. As voltage goes down, amperage goes up to compensate. Especially if the aircon breaker is getting weak, this could be enough to pop it. (The generator is only servicing your RV, so voltage should hold up fairly well).
It is just the internal breaker. The RV is in my driveway. I just replaced the extension cord (50 ft) with a heavy-duty gauge wire. I did feel the connection on the smaller cord where it connects to the adapter and it was warm. Maybe that smaller wire created too much load along with the A/C. Nothing else is running. The 30-amp breaker is for the whole RV. The rest of the breakers are all 15 amp. I have not tried the A/C with the larger cord. I think that may have been the problem along with the 99-degree heat here in CA. I am about to go turn on the A/C with the heavier cord to see if that was the problem. It takes about 20 minutes before the breaker trips.
About Motorhome Group
38,714 PostsLatest Activity: Apr 10, 2025