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also has the function of showing any active alarms on
the machine concerning to the control board opera-
tion; in case of alarm will be shown the code and a
brief description of the error.
Here below is the list of error messages with the cor-
responding diagnostic:
8.2.
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 de-
scribed below.
8.2.1. 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.
Alarm #id
AL_1: Function Brushes Ammeter
AL_2: Function Vacuum Ammeter
AL_3: Function Powerstage Fail
AL_4: Function Overcurrent
AL_5: Function Overtemperature
AL_13: Traction Pedal failure
AL_14: Traction Release Pedal
AL_15: Traction Overtempera-
ture
AL_16: Traction Powerstage Fail
AL_17: Traction Overcurrent
AL_18: Traction Tract. Ammeter
AL_20: General EEprom Fail
AL_21: General Key-off failure
AL_22: General Main rele fail
AL_23: General Overvoltage
AL_24: Traction Batt connection
AL_25: General Keyboard fail
Meaning
Amperometric
Protection
Brushes motor
Amperometric Protection suc-
tion motor
Power section damaged
Overcurrent on brush or va-
cuum motor outputs
Thermal protection on brush /
vacuum motor section
Pedal connections
Pedal pushed when switching
on machine
Thermal protection on tracion
motor section
Traction power section dama-
ged
Overcurrent on traction output
Amperometric protection trac-
tion motor
Error reading internal memory
Incorrect key sequence.
General relay damaged
Overcurrent
Battery not connected to the
function board
Lack of communication dashbo-
ard-board
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 minu-
tes and try to avoid the same incorrect operations. If
the problem persists, contact the authorised service
centre.
8.2.2. THE MACHINE DOESN'T MOVE FORWARD
Solution
Check usage mode of the brushes function. Detected elevated
work current by the brushes motor.
Check vacuum motor absorption. Detected elevated work current
by the suction motor.
Power section of brush or vacuum motor damaged; replace the
card.
Short circuit detected on the output of brushes or vacuum motor:
check connections and engines status.
Overheating on brushes and vacuum motor power section: check
absorptions.
Check connections and pedal potentiometer status.
Detected traction microswitch closed when switching on: release
the pedal.
Overheating on traction motor power section: check absorptions.
Traction power section damaged: replace the card.
Short circuit detected traction motor output: Check connections
and motor conditions.
Check usage mode of the traction function. High working current
has been detected by the traction motor.
Replace the card
Detected rebound on the key signal: check connections and key
contact conditions.
The general relay on the board is damaged; replace the card.
Overvoltage detected on function board. Check battery connec-
tions.
Check usage mode of the traction function. High working current
has been detected by the traction motor.
Check connections between the function board and dashboard.
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