My 35SF has a drawer under the fridge. Pulling that drawer out gives access to the ice maker water line with valve and a few million other wires. Due to size I bet yours is "wired" pretty similar. If you don't have the drawer under it, look around for access to the bottom of fridge somewhere. May you can get to it from behind through a storage compartment?
2018 THOR Chateau 35SF
Two Labs, Bugsie & Blondie