Control Of Pressure Switches Closure; Control Of Washing Temperature; Heating Element - Electrolux with VS81 timer Service Manual

3.4.4

Control of pressure switches closure

The check of position of pressure switch contacts (empty or full) is
detected by the electronic board (14) by means of two "sensing"
lines:
st
§
L1: 1 level (5) pressure switch check
nd
§
L2: 2 level (6) pressure switch check
3.4.5

Control of washing temperature

The temperature control is carried out by the electronic control via a NTC sensor.
The NTC (16) sensor is connected directly to the timer electronic control (14) to
contacts M9.2-M9.3.
If NTC sensor is in short-circuit or interrupted the heating phase is skipped.
NTC temperature sensor
1. Plastic casing
2. NTC Resistance
3. Terminals
3.4.6

Heating element

The heating element (12) is powered in the following way:
§
closure of timer contact G6.3-G6.4
§
first level pressure switch (5) closed on full
§
safety pressure switch (13) closed on full
2001.08 eb
Temperature Resistance
(ºC)
± 10% (Ω )
30
40
50
60
70
78
85
24
17300
11500
7840
5460
3900
2970
2320
599 34 85-05