Tube-Encased Heating Element; Temperature Thermostat; Temperature Sensor; Temperature Sensor + Turbidity Sensor - Electrolux Diva Service Manual

4.9 TUBE-ENCASED HEATING ELEMENT

The heating element, which is encased inside a tube, is used to heat the
washing water. The heating element is not activated during the drying
phase.
- Inserted into the delivery side of the washing pump and coupled with
the duct which directs water to the upper spray arm.
- Standard version for all the appliances in the range.
- Heating power: 2,100 Watts.
Built-in safety devices:
- 1 auto-reset bi-metal thermostat calibrated to 98° C and connected in series to one branch of the
heating element.
- 1 manual-reset fuse calibrated to 206° C and connected in series to the second branch of the
heating element. If this fuse intervenes, the heating element is disconnected definitively.

4.10 TEMPERATURE THERMOSTAT

Used in versions with electromechanical control systems (timers) to
control the temperature of the washing water.
- Positioned externally on the sump, in direct contact with the water.
Available in two versions: with one temperature or two temperatures.
- 1_Tº
- 2_Tº

4.11 TEMPERATURE SENSOR

Used in versions with electronic control systems to control the temperatures of
the washing water.
- Positioned externally on the sump, in direct contact with the water.
- Constantly transmits the temperature of the water to the electronic control
system.
- Consists of an NTC sensor whose resistive value decreases as the
temperature of the water increases.

4.12 TEMPERATURE SENSOR + TURBIDITY SENSOR

If featured, it's used in versions with electronic control (high-end appliances) to
control both the temperature and the turbidity of the washing water.
- Positioned externally on the sump in direct contact with the water.
- Fitted with an NTC sensor for control of the temperature.
- Fitted with an infra-red system for control of the turbidity of the water (i.e. the
quantity of dirt in the water).
- Constantly transmits the two signals to the electronic control system for
processing.
- By correctly combining the signals received from the two sensors (NTC and turbidity), enables the
appliance to perform "automatic" washing cycles which automatically optimize the washing cycle
according to the type of load, the quantity of the load and the degree of soiling.
4.12.1.1 TURBIDITY DETECTION SYSTEM
This consists of a reading process which takes place during the cycle according to the signals received
from the turbidity sensor by the electronic control system.
The signal is transmitted by the sensor and enables the control system to identify the status of the
cycle.
1st reading during Pre-wash phase:- Determines whether the pre-wash drain cycle is performed.
If the drain cycle is performed, the wash phase is performed at the normal temperature (65ºC).
If the drain cycle is not performed, the wash phase is performed at 50ºC.
2nd reading during the 1st rinse:- Determines whether the 2nd rinse is performed..
SOI/TD - PR
for appliances with fixed-temperature washing (65° C).
for appliances with variable-temperature washing (50 ÷ 65° C).
21/32 599 38 72-30