Those water pump sounds can be misleading. There is a slight difference in sound from just "Running" to "Running and Pumping water" from the pump. Bet your pump is just running and has lost its prime---not actually pumping water. Your input to the pump is not getting water due to air in the line, input filter clogged, etc. If your water tank is out of water, the pump will lose its prime and even after getting water back into the tank, it sometimes takes awhile for the pump to actually start pumping water again due to air in the input line. Open your pump filter on the input to your pump and hook up to park water. Set your water valve to the "Fill Tank" position. If you don't have water there now, and your tank is not filling, then the problem is between the pump/water tank and input water connection/valve. You may have a clogged one-way water valve located just after the input water connection(Located right behind it--behind your panel) or water valve problem. You don't need the pump when on shore water, but you can use it to boost water pressure for showering, etc. Just remember that when the pump is on, you are using water from the water tank also. Sounds like your problem is near the main water input connection/one way check valve, the water direction valve (Fill tank or put water into coach) or the water lines in this area.
Jim and Connie, Silver City, NM
2016 Rockwood Ultralite 2608WS
3 lb. Teacup Chihuahua on board