While getting ready for our next trip--figures, I noticed the RS2000 was only charging about 10 DC amps despite the fact that the bats were pretty low. Based on this thread, I was suspecting the fan or some sort of de-rating--as it is still quite hot in Texas. However, I found a buried option [view warnings/faults] on the display panel called "Clear Faults." After exercising the option the RS2000 re-cycled and returned to normal charger output. Still cant say what the "fault" was that cleared but it worked--this time anyway.
2003 40' MDTS
Garden Ridge, Texas