Kenmore 630.13952 Manual page 23

COMPONENTS
Aqua sensor
The aqua sensor is located behind the sump, to the left of the heater. It's a two-
piece assembly, with a small circuit board in a plastic housing). It senses water
cleanliness and allows the dishwasher control to remove pre-wash and/or pre-
rinse cycles to save energy (~ 20% energy savings).
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If water is clean enough, it will be kept for the wash cycle. If not, the aqua
sensor directs the dishwasher to add an additional pre-rinse or pre-wash cycle.
Dishwashers still operate adequately if aqua sensors fail. Customers will only
notice aqua sensors failing if they see their dishwashers running slightly longer
or their electric and water usage getting slightly higher.
Display and power modules
Dishwashers have two controls: a control module in the fascia (control) panel)
and a power module in the base on the right side. The power module controls
the circulation and drain pumps, while the control module controls the wash
programs.
Power module
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Control module