Purpose Of This Manual - Electrolux TC3 Service Manual

1 PURPOSE OF THIS MANUAL

The purpose of this manual is to provide service engineers who are already familiar with the repair procedures
for traditional washing machines with information regarding washing machines fitted with the EWM/WD10931
electronic control system.
Previous platforms (electronic/mechanical) used a safety pressure switch which controlled the minimum water
level in the tub, beneath which the supply to the heating element was interrupted.
The current electronic appliances manufactured (EWM/WD10931 platform), use a heating element with thermal
fuses (inside its branches) for safety, which interrupt in case of temperature overload caused by the water level
dropping below the minimum level permitted.
The incorporated NTC probe contacts have a 2.5 mm pitch.
The manual deals with the following topics:
General characteristics
Control panel and compatibility between washing programmes and options
Settings: Demo, Diagnostics
Alarms
Technical and functional characteristics
Accessibility
Low consumption mode
In order to reduce electricity waste when the cycle is not running, the appliances on this platform are designed
to enter consumption reduction mode:
"Stand-Off" mode
When the appliance is switched off at the ON/OFF button, it is in the "Stand-Off" or "virtual" off status. The LEDs
and the LCD screen are turned off and the sensors are disabled, although the main circuit board and certain
electrical components are electrically powered.
"Auto-off" mode
If, after 5 minutes, during the programme selecting phase or after the end of the cycle, the appliance receives
no further instructions, it is automatically turned off (for energy savings in conformity with the standards on
energy consumption).
All the settings are stored so that when the appliance is turned back on, the programme is ready or if the auto-
off mode was triggered after the end of the cycle, the user can see that the cycle ended normally, and can
restart it if necessary.
You have to unplug the appliance to cut off the power supply
"Zero Watt" mode
Some appliances are fitted with a circuit (in the main circuit board) called Zero Watt (0 Watt with an actual
~
consumption 50 mW) which cuts off the power supply to the appliance:
a. When you press the ON/OFF button to turn off the appliance, the Zero Watt circuit is triggered and cuts off
the supply voltage after a few seconds, just long enough to secure the washing machine (motor off, door
locked, etc.), the cycle and any options selected are reset, so that the next time the appliance is turned on,
it is ready to perform the programme.
(To open the door, you will have to wait one or two minutes for the door safety lock to be released).
b. If, after 5 minutes, during the programme selecting phase or after the end of the cycle, the appliance
receives no further instructions, it is automatically turned off and the Zero Watt circuit which cuts off the
supply voltage is triggered (for energy savings in conformity with the standards on energy consumption).
All the settings are stored so that when the appliance is turned back on, the programme is ready or if the
auto-off mode was triggered after the end of the cycle, the user can see that the cycle ended normally, and
can restart it if necessary.
If an alarm goes off when a wash programme is running, the automatic turn off is disabled showing the alarm.
Technical Support – ADL
4/43 599 75 85-45 Rev. 00