water pump issue

[rogeru]

I just de-winterized our camper, and had the following problem: I filled the water tank about half way. When I turned on the pump, it continued to run, until I shut it off. So, the pump is running, yet no water is coming through the faucets. And, the pump won't shut off unless you shut down the switch. The city water went through fine, and I cleared all of the lines of winterizer, checked for leaks, and all was good. Any ideas? Thanks