when i first turn washer on, the water inlet valve lets cold water in, then after about 30sec. turns off and hums. I switch the plug ins(little elec. wires) and it runs again, then during rinse cylce, it does the same thing and I have to switch wires back, I've checked hoses, screens and all seem fine, I do not use the hotwater, and the hotwater is turned off from the wall. and yes, I have it set on Cold/cold

thanks
Darren

Some of the inlet valves have a thermistor inside. Automatic temp control. If the incoming water is too cold it may be trying to add a little hot to warm it up. Try normal operation with both valves turned on at the wall.