21
Parts & Operations Manual
Labrador
HPD
Drive lever pressed when starting.
Drive lever potentiometer not adjusted.
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.
Recharge the batteries.
Replace the batteries.
Tag fault
Faulty key. Faulty instrument panel
antenna board
Replace the key. Replace the instrument
panel antenna board-reed.
Check the wiring.
RFID fault
Faulty key. Faulty instrument panel
antenna board
Replace the key. Replace the instrument
panel antenna board-reed.
Check the wiring.
Suction motor temperature
Excessive motor effort. Faulty functions
board. Faulty suction motor.
Check the suction motor. Replace
functions board. Replace the suction
motor.
Brush temperature
Excessive motor effort. Faulty functions
board. Faulty motor.
Check the motor. Replace functions
board. Replace the motor.
O.C. Suction motor
Excessive motor effort. Faulty functions
board. Faulty suction motor.
Check the suction motor. Replace
functions board. Replace the suction
motor.
O.C. Drive
Excessive vehicle effort. Faulty drive
board. Electric brake engaged.
Check the motor. Replace the drive
board. Check the electric brake.
Update FW main board
Software update.
Do not remove the key during
the update.
Update FW service board
Software update.
Do not remove the key during
the update.
Flashing light fault
Faulty wiring. Faulty flashing light. The
flashing light is broken. The flashing light
has been enabled in the Technical menu
but it is not fitted on the machine.
Check the wiring. Check the flashing
light. Replace the flashing light. Correct
the settings in the Technical Menu.
Solenoid valve fault
Faulty wiring. Faulty solenoid valve.
Solenoid valve broken.
Check the wiring. Check the solenoid
valve. Replace the solenoid valve.
Pump fault
Faulty wiring. Faulty pump. The pump
is broken. The pump has been enabled
in the Technical menu but it is not fitted
on the machine.
Check the wiring. Check the pump.
Replace the pump. Correct the settings
in the Technical Menu.
Brush fuse
Excessive motor effort. Faulty brush
motor contactor. Motor fuse blown.
Check the motor. Replace the contactor.
Replace the fuse.
Suction motor fuse
Excessive motor effort. Faulty brush
motor relay. Motor fuse blown.
Check the motor. Replace the relay.
Replace the fuse.