Learn how your appliance is supposed to operate so you can determine if it is malfunctioning.
Normally water connot enter the washer unless the inlet mixing valve solenoids are energized (see Fill under Proper Operation). However, if foreign particles get past the filters, they can become lodged in the tiny valve orifice and prevent the metal plunger stem from seating. Water will then flow through the valve whether the washer power is on or off. Automatic washers are normally left unattended. Water flow during a wash cycle can lodge the foreign particle in the valve, causing the water to continue to flow throughout all of the cycle functions and after the washer has stopped. The tub will fill and then overflow. The only way to stop it is to turn off both water faucets connected to the inlet hoses.
Figure 1 (Return)
All of the information in these Appliance Clinic procedures is provided FREE OF CHARGE. No liability is assumed by the author for the accuracy of the contents or damages caused by the use of these procedures.