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3.8.4
Overheating Control
The heater plate is only activated during the wash cycles. It is not used for drying. The
temperature is maintained by the thermistor. The element circuit is continuously
monitored by the electronic controller and will switch a fail-safe relay if a fault is detected
in the heater circuit. The element is thermally monitored by the thermistor on the element
through the electronic controller.
3.9
Filter Plate
The filter plate is a stainless steel disk, which lies below the dishrack and sprayarm and
completely encompasses the base of the tub.
3.9.1
The Filter System
The tub is designed with vanes, which swirl the water around and over the filter plate. At
the front of the tub, located as part of the filter plate, is the drain filter. Large soils collect
in the drain filter and only 1/16" or smaller soils flow through its micro mesh filter,
eliminating re-depositing of soil during the wash. Only soils up to ¼" pass through the
drain filter during the drain cycle. This requires the drain filter to be regularly emptied and
cleaned.
3.9.2
Removing and Cleaning the Filter Plate
The drain filter can be emptied with the dishrack in place by removing the cutlery basket
and opening the plastic section of the dishrack. The filter plate is removable for cleaning
by removing the dishrack and sprayarm and unlocking the lockring nut anti-clockwise.
3.10
Drain Cycle
The drain pump is a self priming centrifugal pump which only pumps when the motor is
rotating in the drain direction (anti-clockwise). It has a five bladed impellor made from
acetal pushed into a spline on the end of the rotor shaft. The drain cycle is a 60 second
timed drain period.
The drain pump housing, which incorporates an inlet and outlet pipe, is welded to the
motor housing, hence captivating the motor.
The inlet pipe plugs straight into the sump and is sealed there by a small 'o' ring.
The outlet pipe has a non-return flap valve to prevent soiled water returning to the tub.
The drain hose is an extruded blow mould hose, which is routed over the link assembly
and exits out of the base of the product and is connected to a domestic drain.
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