I've been having the same problem, however I use a YC-230 to combine voltage of 2 30 amp /120V to give give me 220V. What I originally thought was that my batt charger failed.
It tuned out I had a couple of issues: master breaker failed as did the alternator. To get the engine panel working I had to excite the alternator to 1200 RPM's then it would begin to charge. The master breaker being 30 years old will not stay closed. I ordered a new from Maude. Right now, I'm putting everything back together and shall see if it is fixed. What is strange is how everything failed seemingly at once.
