Drying Cycle; Deflating; 3.12.1 Lid Seal; 3.12.2 When The Lid Seal Deflates - Fisher & Paykel DS6021 Service Manual

3.11

Drying Cycle

Immediately after water from the final hot rinse has been drained from the tub, the drying
system begins operation.
The fan draws air through the tub, where it absorbs water from the dishload. The moisture
laden air is then mixed with a larger quantity of ambient air (from the kitchen), to minimise
the amount of vapour visible when exiting from the drawer front.
The fan runs continuously during the drying cycle and will restart if the tub is opened and
closed again. After the drying cycle is complete, the fan continues to run for 30 minutes,
but will not restart if the tub is opened.
The fan is pulsed when needed throughout the entire wash cycle. This draws ambient air
through the electronics heatsink to maintain the electronics components within their
specified operating temperatures.
3.12

Deflating

3.12.1 Lid Seal

The lid seal is a static plastic moulding retained in the lid, which provides a dynamic seal
to the tub during the washing cycles.

3.12.2 When the Lid Seal Deflates

At the end of the dishwasher programme, or a pause in the programme, an exhaust valve
releases the air pressure from the bellows section gasket. This deflates the seal and
unlocks the tub and drawer.
3.13

Lockring Nut

The lockring nut holds the heater plate into the base of the tub and motor housing
assembly to form a watertight seal. It does this by compressing two large 'o' rings
between the heater plate and tub and between the heater plate and the motor assembly.
It has clips, which hold the drain hose, fill hoses and the wiring loom in place.
Another function of the lockring nut is to support the wiring cover with three clips.
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