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TROUBLESHOOTING
THE SUCTION MOTOR DOES NOT FUNCTION
1. Check whether the motor indicator light is lit up
2. Check whether the recovery tank is full and, if necessary, empty it
3. Check the float switch is working well (see also “CLEANING THE RECOVERY
TANK” in the chapter “DAILY MAINTENANCE”)
THE BRUSH MOTORS DO NOT WORK
ATTENTION
To avoid damaging the floor, the motors only start up when the
machine is moved forwards. In addition, to avoid damaging the electric motors in
the event of an excessive workload, a thermal protection device has been fitted on
each motor.
1. Check no thermal protection device has intervened. If the motors overheat, wait a
few minutes until they have cooled down then press the trip unit button (1) next to
each motor.
2. Check the electrical connector of the brushing unit is correctly connected with the
safety connector.
3. Check the base is down
4. The operator must be properly seated in the driving position
5. Check the power supply indicator light is lit up and the forwards manipulator is
inserted on forwards or backwards
6. Press the working operation command pedal to activate the brush motors. If the
problem persists, contact the COMAC Technical Assistance Centre.
IT IS IMPOSSIBLE TO RAISE OR LOWER THE BASE OR SQUEEGEE
1. The machine is fitted with electrical protection devices that control the base and
squeegee ascent/descent motor reducers. In the event of overloading, the fuses
interrupt the power supply. After checking and removing the reason for the
problem, to reset them just switch the machine off then on again. If the problem
persists, contact the COMAC technical assistance centre.
THE MACHINE DOES NOT START
1. The operator must be properly seated in the driving position
2. Check the parking brake pedal (1) is released
3. Check that connector (2) is connected to the batteries
4. Check the key switch (3) is on
5. Check that batteries (4) are charged
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