Service manual: MSWM18040 - 3 -
3. Self-test
The Self-test checking routine performs a component verification sequence without the
need to intervene once it is running. At the end of each of the steps, the following is
launched.
Before launching the Self-test routine it is recommended to carry out the following
operations:
•Connect a 20A/AC reading scale 2 digits Digital Ammeter, in series to one of the
phases of the mains current, on the mains wire of the appliance. This will allow
to verify the components during the test.
•Carefully empty the drum of the washing machine, because during the Auto-test
sequence the unbalance safety provided by the software is disabled.
•Set the Program Selector's Knob [A] to the OFF position and wait for 30 seconds
before to launch the self-test.
Activation of the self-test routine:
1. Set the Programs Selector Knob [A] to the second Washing Program after the
OFF position in clockwise sense. Wait a moment for the display to turn off. The
display will remain off for approximately 1 second.
2. Push the first Button to the Left [C] under the LCD screen while the display is off
until the display shows 0:80 and all the LEDs on the screen remain illuminated.
3. Within 5 seconds, push the Start/Pause Button [B]. From this moment on, the
self-test routine will be carried out automatically.
