Airflow Diagram - Hotpoint Aquarius WD420P Service Information

The water supply for the condenser is by means of a direct feed from a cold inlet valve to the rear of
the outer drum and is pumped out approximately every 30 seconds.
The closed air system is sealed by a 'P' trap located within the dispenser inlet hose.
The hose is topped up with cold water every 8 minutes for a duration of 1 second.
There are two heat settings, high and low heat. The default setting is low heat, High Heat is selected
by means of a push button on the console. The drying time is selected by means of a rotary switch
also located on the console. The drying times are followed by a 20 minute cool tumble.
Thermal Spin
A thermal spin on the High Heat setting is carried at the start of the of the drying process. The load
is pre-heated to approximately 50°C by the dryer heater with normal tumble action and pump out.
The thermistor located in the wash heater will sense the load temperature and when 50°C is achieved
a 5 minute Spin profile will be carried out at full spin speed.
During thermal spin the out of Balance detection will operate and maximum speed will only be
achieved depending on the out of balance condition.
On completion of the Thermal Spin, the tumble drying process will commence for the period of time
selected.
Thermal spin is NOT available when low heat is selected.

Airflow Diagram

Warm Dry Air
Cold Dry Air
Warm Humid Air
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