ELECTRONIC BOARD REPLACEMENT [MICROMATIC M17B]
Check that the switches (5 and 6) are turned to “0”.
Remove the recovery water tank and disconnect the battery negative terminal (50) according to the following procedure:
If there is recovery water in the tank (43), drain it through the hose (22).
Disconnect the vacuum hose (29) from the squeegee (17).
Open the cover (12).
Grasp the recovery water tank (A) in the area (B) and lift it, as shown in the gure, then disconnect the vacuum hose (C)
from the tank and remove the tank (A) together with the hoses (D) and (E).
Remove the screws (F) and carefully pull out the electrical component box cover (G).
Disconnect the connections (H) of the electronic board (I).
Disengage the fasteners (J) and remove the electronic board (I).
Assemble in the reverse order of disassembly, and note these items:
Be sure that the electronic board/solenoid valve fuse (K) is installed.
Set the switch (L) for the battery type (WET or GEL) and the switch (M) for the battery charger (33) in the same position as
for the replaced board.
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