Thanks for the info Leo.
I am having a similar problem with no DC to the main fuse panel in the bedroom of my 1998 Monaco Dynasty. After tapping on a few relays in the rear main DC panel, I thought I heard a relay click in the drivers side front DC panel outside the coach. Sure enough, the lights came on inside. I then turned the DC switch at the stairway off and back on and lost DC power again. After tapping in the back again the lights came back on.
My question to you, Leo, is was the corrosion you cleaned off visible? And did you hear any relays operate after cleaning the terminals.
Thanks for anyone's help.
I'm a new member and think the forums are great.
B.J.