Electrolux DIVA, Руководство по обслуживанию

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The water level in the sump is controlled by pressure switch (RL). The circuit board constantly
monitors the status of the pressure switch through the “sensing” line connected to connector E1:
“EMPTY” if contacts 1-2 are closed
“FULL” if contacts 1-3 are closed
7.1.3 Anti-flooding device
When the anti-flooding device is tripped, contacts (DA) on the relative microswitch open and cut off
power to the water fill solenoid.
7.1.4 Anti-overflow system
If the pressure switch (PA) on the anti-overflow system is activated, the closed “FULL” contact (1-3)
starts the drain pump (PS), which operates until the contact switches to “EMPTY” (1-2).
If the door is opened or the machine is shut off , the drain pump shuts off.
7.2 Control of water filling
The quantity of water required to perform the washing cycle is exclusively determined by the closure
of the electrical contacts in the pressure switch when it switches from EMPTY to FULL.
In order to keep a constant amount of water in the machine, if the pressure switch should re-open to
EMPTY, fresh water is introduced until the switch returns to FULL. The fill cycle is subdivided into the
following sub-cycles:
7.2.1 Static filling
With the motor switched off, the fill solenoid is activated and water is introduced into the appliance
until the pressure switch switches to FULL
7.2.2 Dynamic filling
Dynamic filling is obtained by starting the wash pump, which moves the pressure switch to the
EMPTY position. At this point, the fill solenoid is actuated and water enters until the pressure switch moves
to the FULL position.
The speed of the motor determines the quantity of water loaded into the machine: the electronic
control system actuates the wash pump at a speed that depends on the type of washing that will be
executed after the machine fills:
If washing is « ctrl » (constant speed): the motor is gradually accelerated to 2800 RPM .
If washing is « PW » (pulse): the motor is gradually accelerated to 1900 RPM .
N.B.- For more information on these washing methods, see the table of wash programmes.
7.2.3 Level control during washing
The water circuit operates with greatest efficiency when the pressure switch remains constantly on
FULL, since the water contained in the sump enables the pump motor to operate constantly and without the
fluctuations that are caused when the pump cavitates.
The fill solenoid is disabled when the pressure switch is set to FULL.