Drying Cycle; Deflating; Lockring Nut - Fisher & Paykel DD601 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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