No pump to take water in, water pressure alone, water valve on back, where hose connects, turn off water to m/c, disconnect hose from back check the filter in there. if clear, reconnect, listen for the water valve opening, water goes to top of soap dispenser. if not faulty valve wiring or control, test meter on valve 1st, it is a solenoid coil, if open cct. replace, if ok check wiring. etc etc
SD, January 2012
