ENGLISH
25
• the hose delivering the
detergent to the brush is
blocked
• unblock and open the circuit
• the tap is dirty or faulty • clean or replace the tap by
unscrewing the screw (ref.
1 fig. 11)
The detergent flow does not
stop
• the tap stays open, because it is
damaged or very dirty
• have the tap cleaned or
replaced
The suction motor does not
start
• the suction switch is in the ‘0'
position (off)
• turn the suction switch on
• there is no power to the suction
motor or the motor is faulty
• check that the motor power
connector is correctly
connected to the main
wiring; in the second case
have the motor replaced
• [B] [BT]= the fuse has blown
• [B] [BT]= replace the fuse
The squeegee does not clean
or suction is ineffective
• the edge of the rubber blades in
contact with the floor is worn
• replace the rubber blade
• the squeegee or hose is
blocked or damaged
• unblock and repair the
damage
• the float switch has tripped (dirty
water drum), is clogged by dirt or
broken
• empty the dirty water drum
or reset the float switch
• the suction hose is blocked • unblock the hose
• the suction hose is not
connected to the squeegee or is
damaged
• connect or repair the hose
• there is no power to the suction
motor or the motor is faulty
• check that the motor power
connector is correctly
connected to the main wiring
and that the fuse is not
blown; in the second case
have the motor replaced
The machine does not move
• there is no power to the
brush/drive motor or it is faulty
• in the first case, place the
brush switch in the "1"
position and press the
brush/drive lever; in the
second case, check that the
brush/drive motor is correctly
connected to the main wiring;
in the third case replace the
motor
CT90, drive motor electronic
board protection activated,
check the type of alarm
present on the board (see
chapter 11)
• the reduction unit is broken
(therefore the brush does not
turn)
• have the reduction unit
replaced
• the brush motor thermal cutout
has tripped; the motor is
overheated
• stop the machine, turn it off
and leave it to cool for at
least 45'
• [B] [BT]= the batteries are flat
and the brushes have shut down
• [B] [BT]= recharge the
batteries
The machine tends to pull to
one side
• the direction adjustment knob
must be adjusted appropriately
for the floor
• regulate the direction of
movement by adjusting the
speed adjustment knob
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