The Check Valve and Hose Assembly is an OEM part for GE dishwashers. This part prevents the backflow of water into the dishwasher, ensuring proper drainage and protecting the appliance from potential water damage. Causes of a bad check valve and hose assembly can include blockages from debris, wear and tear over time, or damage from improper installation.  Symptoms of a bad check valve and hose assembly include: Water not draining properly from the dishwasher Standing water in the bottom of the dishwasher Water leaking from the dishwasher Unusual noises during the drain cycle This OEM GE part is also compatible with Hotpoint, RCA, and some Kenmore models.Part Number WD12X10189 (AP3860894) replaces 1168256, AH1019542, EA1019542, PS1019542.