The inside water pump switch works through the Intellitec controller. The outside switch does not. That tells me you have a problem with one of the Intellitec controllers.
Have you have a chance to get to the controllers yet, if so what have you found? Replacement controllers are expensive and not easy to find. If you would like to Private Message me with your email I have a couple of pdf files with info on the system.
I found one on Ebay a while back. The part number is 00-0920-000. It's called an RV Smart Fuse Block.