Battery "drain" issue ?? maybe?

[pgchd]

Hi Guys!
We have a 95 4203 and being newbies I am not sure whether or not we
have a battery "drain" issue. I had the 3 engine batteries load
tested, 1 was bad so I replaced it. I did not have the 6 "house" side
load tested because they appear to be all new. However when the coach
sits for a week, she fires right up, no problems but 1 of the
"inverters" seems to start at about 130 amps, then slowly goes down
to 10-15 in about 4-5 hours of the generator running to charge them
up. Then other inverter starts at 10 amps and usually stays there. The
master switch in the coach is alwys off and I have turned off every
"device" I can find. Any ideas ?? Also does anyone know how these 2
changers/inverters are "loaded" or how the aux battery switch on the
dash ought to work - it has 3 postions?? Thanks much!

Pete and Donna Chin
1995 4203 newbies