I have 2006 Keystone Sprinter 5th Wheel...I do very little dry camping...only rare occasions. I'm trying to figure out why I get a whine from my water pump when I'm hooked up to shore water and I'm r...
If you are on city water the pump switch should be turned off. I'd open the access panel and check it to see what smells. Also put some water in the fresh tank so the pump can pressurize and not run dry.