Operating Checks; Malfunctions Self-Diagnostic; The Machine Doesn't Work; The Machine Doesn't Move Forward - LAVOR Pro COMFORT S-R 66 Bedienungsanleitung

9. OPERATING CHECKS

9.1 MALFUNCTIONS SELF-DIAGNOSTIC

The main electrical components and the function
control card are located under the front panel of
the machine (Photo A - 9).
This card is equipped with a self-diagnostic system
that uses a red LED to indicate correct operation or
Number of flashes
9.2 PROBLEM SOLVING GUIDE
These indications make it easier to understand the
underlying causes of some problems based on spe-
cific type of inconvenience. For the type of corrective
action to take please refer to the specific sections
described below.

9.2.1 THE MACHINE DOESN'T WORK

The key is not inserted or incorrectly turned.
☺ Insert and turn the key to position "1".
The battery connector is disconnected or poorly
attached to the main wiring connector.
☺ Firmly connect the two connectors.
The emergency/work stoppage button is pressed.
☺ Disengage the emergency/work stoppage button.
The machine is charging.
☺ Complete the charging operation.
The batteries are discharged.
☺ Charge the batteries.
No operator in the driver's seat.
☺ Sit in the driver's seat.
The main fuse is burned.
☺ Replace it.
The control card has overheated.
☺ Check the operating situations that may have cau-
sed the malfunction (high slope, etc.). Wait 30 mi-
nutes and try to avoid the same incorrect operations.
If the problem persists, contact the authorised ser-
vice centre.
9.2.2 THE MACHINE DOESN'T MOVE FOR-
WARD
Error message
1
The potentiometer cables are not connected
2
Battery tension under the threshold
3
Temperature beyond the threshold
4
Error on the serial communication
Error on departure - potentiometer not at
5
"zero" at the departure
6 Temperature beyond the threshold
7 Current beyond the threshold
Correct operation
Led ON
Incorrect card electric feeding
Led OFF
malfunctions (Photo L - 5). The LED remains tur-
ned on to indicate that the card is operating cor-
rectly, while a sequence of flashes indicates a
different error message as per the following list:
The direction selection lever is in the neutral po-
sition.
☺ Select a running direction.
The advancement pedal is not pressed.
☺ Press the pedal.
The floor slope is too steep.
☺ Manually push the machine to the new level.
☺ The thermal breaker of the drive motor is tripped.
☺ Stop the machine, allow it to remain inactive for
5 minutes, replace the fuses.
The advancement pedal microswitch is broken.
☺ Replace it.
The batteries are dead.
☺ Charge the batteries.
The accelerator pedal was pressed when the ma-
chine was turned on.
☺ Release the accelerator pedal, turn off and restart
the machine.
The accelerator pedal potentiometer is malfun-
ctioning.
☺ Replace the potentiometer.
The drive motor was not stopped when the ma-
chine was turned on.
☺ Place the machine on a flat surface, turn it on and
off again with the key.

9.2.3 THE BRUSHES DON'T ROTATE

The brush motor switch is not selected.
☺ Press the button to activate the brushes.
The machine is not moving forward and the con-
trol tripped to avoid damaging the floor.
☺ Press the advancement pedal.
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