Theory on failed Power Converters & possible fix

Originally posted by techntrek 12 volt power isn't needed for the A/C, so that would lead me to think a circuit breaker or two is tripped, as suggested above. We've seen very few converter issues on this board, even with pods that have 20,000+ miles on them (like ours did).  It is possible you just ended up on the low end of the bell curve with two bad converters in a row.

Actually, on the newer AC units like those in the 180, 12v is required for the digital AC thermostat and the AC will not function without it. I learned that the hard way when the first converter went.

It's possible I was unlucky in the converter department but the coincidence of the mileage being very close the same both times is highly suspicious to me, which led to my investigation and theory. I'm not claiming this is a guaranteed issue or fix, I'm just sharing my experience.

Yes that was the first thing we checked was the breakers!

I just had a converter failure in the middle of a 6 week trip.  On disassembly inspection, I found that the resistor R1 had "fallen off" the circuit board. So I think that the discussions on vibration issues are valid.  We also had the read walls bread free from the platform on this trip and needed repairs.  The excellent repair by ArrKan RV in Edmonton found just a few screws were holding the back together and were too short or broken off. Trans Canada 16 is quite a bouncy 4 lane.