3 Access the board by loosening the top and
bottom screws with a Phillips screwdriver.
4 With a multimeter measure the voltage alter-
nating between the ends of the faulty dis-
penser (see figure). Place the test leads of
the voltmeter at the terminals of the doser
using the references in the image.
The signal generated by the fan is a square wave
of about 5 V.
If the dispenser is damaged we cannot read
anything.
HOW TO VERIFY THE SIGNAL OF THE FAN
To measure the signal it is necessary to access
to the electronic board located on the left side.
1 Remove the left side panel.
2 Unscrew the screw to open the flap.
Fig. 216
Fig. 215
Fig. 214
Edition 01 of 08/2017
7.12
SERVICE MANUAL
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