The machine spins and will drain for a few seconds but then suddenly stop. This seems to go on forever but the machine never drains all the way. There is some back draft of the water as well. I checked the pump and all hoses and they all seem fine. I then attempted to check the pump switch and pressure chamber. The chamber is clean and when I blew into the the bottom of the hose, I heard the switch click. Also, when I blow through the bottom of the hose, into the pressure switch, the machine drains properly. Does this mean the pump switch is bad? I thought if I heard the click, the switch was good. I'm stumped! And my wife doesn't like the idea of having to blow into a hose to do the laundry. Please help. If it's just the pump switch I can handle it, but I don't want to start replacing parts that don't need to be replaced. Thanks.