Alarm
Possible cause
BRUSHES
THERMAL
The
brush
PROTECTION
overheated.
Faulty
thermal
contact on the motors.
Faulty connection.
DRIVE
THERMAL
The
drive
PROTECTION
overheated.
Faulty
thermal
contact on the motor.
Faulty connection.
WATER RESERVE
Solution tank almost empty.
Stuck sensor.
Faulty sensor or connection.
NO WATER
Solution tank empty.
Stuck sensor.
Faulty sensor or connection.
DIRTY WATER TANK
Dirty water tank full.
Stuck sensor.
Faulty sensor or connection.
CHEMICAL FINISHED
Severe
Environment
empty.
Stuck sensor.
Faulty sensor or connection.
FUNCTION BOARD NOT
Communication
DETECTED
functions board interrupted.
Faulty auxiliary boards.
BATTERY RESERVE
Battery voltage less than
: 21.9 V GEL/AGM - 21 V
ACID.
Flat batteries.
CALL SERVICE
The set number of hours for
scheduled service have been
reached/exceeded.
BATTERY CHARGING
The
on-board
charger is operating, all the
machine's
disabled.
CHARGING COMPLETE
The on-board battery charger
is operating, the charge is
complete, all the machine's
functions are disabled.
O.C. BRUSHES
Faulty functions board.
Brush motor faulty
DRIVE
BOARD
TEMPERATURE
Faulty drive board.
Electric brake engaged.
ACCELERATOR FAULT
Faulty
connections.
Faulty potentiometer.
DRIVE BOARD U.V.
Battery voltage less than
18.3 V GEL/AGM - 18 V
ACID.
Flat or degraded batteries.
RELAY FAULT
Faulty relay.
Faulty relay connection.
ELECTRIC BRAKE FAULT
Faulty wiring.
Faulty electric brake.
The electric brake has been
enabled in the Technical
machine.
HDP
Drive lever pressed when
starting.
Drive lever potentiometer not
adjusted.
DISPLAY ALARMS
What to do
motor
has
Wait for the brush motors to
cool down.
protector
Replace the brush motor.
Check the connection.
wheel
has
Wait for the drive wheel to
cool down.
protector
Replace the drive wheel.
Check the connection.
Fill the solution tank.
Clean the level sensor.
Replace the level sensor.
Check the connection.
Fill the solution tank.
Clean the level sensor.
Replace the level sensor.
Check the connection.
To resume work, turn the
operation selector to the OFF
position (reset errors).
Empty the dirty water tank.
Clean the level sensor.
Replace the level sensor.
Check the connection.
To resume work, turn the
operation selector to the OFF
position (reset errors).
tank
Fill the Severe Environment
tank.
Clean the level sensor.
Replace the level sensor.
Check the connection.
with
Check
the
connection
between the boards.
Check the auxiliary boards.
Recharge the batteries.
Replace the batteries.
Call a service centre to
arrange servicing.
battery
Disconnect
the
battery
charger.
functions
are
Disconnect
the
battery
charger.
Check motor load.
Replace functions board.
Replace the brush motor.
Cool or heat the board.
Do not overwork the machine
on long ramps.
Replace the drive control
board.
Check the electric brake.
potentiometer
Check the connection.
Replace the potentiometer.
Charge
or
replace
the
batteries.
Replace the relay.
Check relay connections.
Check the wiring.
Check / replace the electric
brake.
Correct the settings in the
Technical Menu.
Release the drive lever when
starting the machine.
Check
potentiometer
adjustment.
BATTERY FLAT
Battery voltage less than
21.4 V - GEL / 20.5 V - ACID.
Flat or degraded batteries.
TAG FAULT
Faulty key.
Faulty
antenna board
RFID FAULT
Faulty key.
Faulty
antenna board
SUCTION TEMPERATURE
Faulty functions board.
Faulty suction motor.
BRUSH TEMPERATURE
Faulty functions board.
Faulty motor.
SUCTION O.C.
Faulty functions board.
Faulty suction motor.
DRIVE O.C.
Faulty drive board.
Electric brake engaged.
UPDATE FW
Software update.
FLASHING LIGHT FAULT
Faulty wiring.
enabled in the Technical
machine.
SOLENOID VALVE FAULT
Faulty wiring.
Faulty solenoid valve.
Solenoid valve broken.
PUMP FAULT
Faulty wiring.
Faulty pump.
The pump is broken.
The pump has been enabled
in the Technical menu but it
BRUSHES FUSE
Faulty brush motor contactor.
Motor fuse blown.
SUCTION FUSE
Faulty brush motor relay.
Motor fuse blown.
RECHARGE ERROR
Generic error associated
with the battery recharging
operation.
EN
Recharge the batteries.
Replace the batteries.
Replace the key.
instrument
panel
Replace
the
instrument
panel antenna board-reed.
Check the wiring.
Replace the key.
instrument
panel
Replace
the
instrument
panel antenna board-reed.
Check the wiring.
Check the suction motor.
Replace functions board.
Replace the suction motor.
Check the motor.
Replace functions board.
Replace the motor.
Check the suction motor.
Replace functions board.
Replace the suction motor.
Check the motor.
Replace the drive board.
Check the electric brake.
Do not remove the key
during the update.
Check the wiring.
Correct the settings in the
Technical Menu.
Check the wiring.
Check the solenoid valve.
Replace the solenoid valve.
Check the wiring.
Check the pump.
Replace the pump.
Correct the settings in the
Technical Menu.
Check the motor.
Replace the contactor.
Replace the fuse.
Check the motor.
Replace the relay.
Replace the fuse.
Disconnect the battery
charger and repeat the
recharge procedure.
If the problem persists,
replace the battery charger.
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