Test Program - Toshiba DWS-22A Series Service Manual

In order to check the operation of components of appliance and find out the malfunction, we
designed this program for technician.
How to activate Test Program
To enter the factory diagnostic mode:
1. Turn the dishwasher off and make sure no LEDs light.
2. Cut off the power to the dishwasher.
3. Pour 5L water into the water tank.
4. Within 60 seconds from Plug in, with the door closed both press the Power and Start/Pause
buttons, then all LED lights and the digital screen are lighting and flashing with 1Hz frequency.
At last, open the door and close it again. Then the dishwasher will run as below steps.
WARNING: The water tank must be full filled until beep alarm , then entering the test process.
No.
Display
Main board type code
1
and F*
2 06
3 05
4 04
03/Temperature
5
6 02
7
01
8 Display board type code
and F*
*stands 0,1,2...... means the software version number

Test Program

Component
Regenerator valve
Drain valve and water pump
Steam generator
Motor pump and heating
elements
Drain pump
Water inlet valve
Drain valve ,water pump
and drain pump
Action
When the water tank level switch (ISB) is
disconnected, the "EF" is displayed and open
regenerator valve 5s.
Pour water 1.5L into tub.
Open steam generator to heat the temperature
to 105℃, and then turn off it.
Turn on the wash pump, after 10 seconds, the
heater will turn on. The beeper will beep for
one time when the temperature has rise for
3℃ for the first time. The dishwasher will stop
when the temperature has arrived 57℃.
Press " Start/Pause" to enter the next step.
The drain pump operate 10s.When the water
tank level switch (ISB) is connected, the "EF"
is displayed .
The water inlet valve open about 10s.
Open drain valve, meanwhile , operate water
pump and drain pump 240s.
Operate fan until the end.
the display will show board type code **and
F*, alternately. The beeper beep one time to
End.
Restart to enter standby mode.
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