The freshwater pump on my 2005 330 Express stopped working. Reset the freshwater rocker switch and examined pump which seemed fine. Any other thing I may be missing other than replacing the pump? Thanks!
On my 2005 the freshwater pump would fail to pump occasionally. I finally figured out it was the pressure switch. If I left the system pressured up after a trip and did not pull the trigger and let off the pressure then sometimes the pressure switch would stay depressed and not let the pump work. Usually I could bang on the pump head and it would start working. I finally took the pump apart and figured out how the switch worked. I replaced the switch only and never had another problem. Its worth a look to see if the switch is your problem before you buy a complete pump. Just jump 12 v around the pressure switch and see if the motor runs.