10
English
Troubleshooting guide
DANGER
Risk of injury! Before working on the appliance, remove
the Intelligent Key and the mains plug of the charger.
Pull out the battery plug.
Drain and dispose of the dirty water and the residual
fresh water.
CAUTION
Risk of injury due to overrun of the suction turbine.
Suction turbine will continue to run for a while after
switch-off. Carry out maintenance tasks only after the
suction turbine has come to a halt.
In case of faults that cannot be remedied using the table
below, please contact customer service.
Fault indication
Note
Fault messages that are not listed in the table indicate
faults that cannot be rectified by the operator. Please
contact customer service.
If errors appear on the display, then proceed as follows:
Faults with display
Faults without display on the console
Fault
Remedy
Fault indication as text
1 Execute instructions on the display.
2 Acknowledge the fault by pressing the Info button.
Fault indication as numerical code
1 Turn the programme selection switch to "OFF".
2 Wait till the text on the display has disappeared.
3 Turn the programme switch Into the previous position.
Only carry out the troubleshooting measures in the indicated order if the error occurs again. The key switch must be in the "0"
position and the emergency stop button pressed.
4 If the fault cannot be repaired, contact customer service and mention the error message.
Fault
Possible cause
Remedy
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ease the drive pedal. Sit on the seat.
Release accelerator!
The gas pedal is pressed down when the main switch
is on.
1 Release drive pedal and reactivate.
No direction of travel!
Travel direction switch or cable connection defective. 1 Contact customer service.
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ery.
Battery voltage inadmissible!
Battery voltage is above or below the permissible
range.
1 Contact customer service.
Fresh water tank empty!
The fresh water t
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fresh water reservoir.
Brush pressure not reached!
Timeout brush contact pressure control.
1 Check brush wear. Replace brush if required.
2 Check the function of the brush heads: lowering and raising.
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!
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waste water tank.
The waste water tank is full
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ance.
2 Contact customer service.
Propulsion motor hot! Allow to cool down! Motor protection is tr
.
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2 Allow the appliance to cool down for at least 15 minutes.
3 Contact customer service in case of recurrence.
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.
Control is hot! Allow to cool down!
Performance electronics of lift module (A4) is too hot. 1 Turn the safety switch to the "0" position.
2 Allow control to cool down at least 5 minutes.
3 Reduce the brush pressure with the rough ground.
4 Contact customer service in case of recurrence.
Brush motors overloaded!
Load of the brush heads is asymmetric.
1 Adjust the brush level.
Fault
Remedy
Appliance cannot be started
1 Seat switch not operated, Sit down on the seat.
2 The appliance operates only if the operator is seated on the seat.
1 Turn the safety switch to the "1" position.
1 Set the programme switch to "OFF". Wait for 10 seconds. Set the programme selector switch to the previous function. If possi-
ble, drive the appliance on level ground only. Check the parking brake and the foot brake if necessary.
1 Take the foot off the accelerator pedal prior to switch on the safety switch.
2 If the fault recurs, contact customer service.
1 Check the battery.
2 Charge the battery if needed.
Insufficient water quantity
Check the fresh water level. Refill the fresh water tank if necessary.
Check the hoses for blockages. Clean them if required.
Clean the fresh water filter.
Insufficient vacuum performance
Clean the seals between the waste water tank and the cover, and check for tightness. Replace the seals if required.
Check the protective turbine strainer for soiling. Clean it if necessary.
Clean the vacuum lips on the vacuum bar. Turn or replace it if required.
Check if the cover on the waste water discharge hose is closed.
Check the suction hose for blockages. Clean it if required.
Check the suction hose for tightness. Replace it if required.
Check the setting of the vacuum bar.
Attach the additional weight (accessory) to the vacuum bar.
Brushes do not work
Reduce the contact pressure.
Check if the foreign matters block the brushes. Remove the foreign matter if required.
Motor is overloaded. Allow to cool down.
a Set the programme switch to "OFF".
b Wait for 10 seconds.
c Set the programme selector switch to the previous function.
Drain hose for the waste water is clogged 1 Open the dosing equipment at the drain hose.
2 Pull out the suction hose from the suction beam, and close the suction hose by hand.
3 Set the program selection switch to suction or vacuuming.
4 The blockage will be sucked out from the drain hose into the waste water tank.
Insufficient cleaning result
Set and adjust the contact pressure.
Adjust the wiper lips.
Check the brushes for wear. Replace the brushes if required.
