Considering purchasing a 2003 Monaco Diplomat 40 PWD

A follow-up question. Started demo. Was going to remove the fridge, but the electric valve on the tank is not shutting off the propane. I can feel and hear the valve move/click when I flip the switch located near the tank and I also manually shut it off by pulling the wire on the switch. It's a horizontal tank. Any suggestions?
I think I have this valve figured out. Will verify Saturday.