Dishwasher leaks underneath when pumping - drain valve housing?

Dishwasher leaks underneath when pumping - drain valve housing?

Our Kenmore Elite dishwasher is leaking steadily from underneath while pumping. Just started a few days ago - unit is 3 yrs old. It seems to be leaking from the valve/drain flange/ housing on side of motor/pump cylinder at bottom center of unit. Is that flange/valve housing removable and serviceable?