Lavorwash COMFORT XXS, User Manual

Page: 40 / 116

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9. OPERATING CHECKS
9.1 MALFUNCTIONS SELF-DIAGNOS-
TIC
The display located on the control panel (Photo N
- 7) also has the function of showing any active
alarms on the machine concerning to the control
board operation; 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
corresponding diagnostic:
Alarm #id Meaning Solution
AL_1: Function
Brushes Ammeter
Amperometric Protec-
tion Brushes motor
Check usage mode of the brushes function.
Detected elevated work current by the brushes
motor.
AL_2: Function Va-
cuum Ammeter
Amperometric Protec-
tion suction motor
Check vacuum motor absorption. Detected
elevated work current by the suction motor.
AL_3: Function Po-
werstage Fail
Power section dama-
ged
Power section of brush or vacuum motor da-
maged; replace the card.
AL_4: Function Over-
current
Overcurrent on brush
or vacuum motor ou-
tputs
Short circuit detected on the output of brushes
or vacuum motor: check connections and en-
gines status.
AL_5: Function Over-
temperature
Thermal protection on
brush / vacuum motor
section
Overheating on brushes and vacuum motor
power section: check absorptions.
AL_13: Traction Pedal
failure
Pedal connections Check connections and pedal potentiometer
status.
AL_14: Traction Rele-
ase Pedal
Pedal pushed when
switching on machine
Detected traction microswitch closed when
switching on: release the pedal.
AL_15: Traction
Overtemperature
Thermal protection on
tracion motor section
Overheating on traction motor power section:
check absorptions.
AL_16: Traction Po-
werstage Fail
Traction power sec-
tion damaged
Traction power section damaged: replace the
card.
AL_17: Traction Over-
current
Overcurrent on trac-
tion output
Short circuit detected traction motor output:
Check connections and motor conditions.
AL_18: Traction Tract.
Ammeter
Amperometric protec-
tion traction motor
Check usage mode of the traction function.
High working current has been detected by
the traction motor.
AL_20: General EE-
prom Fail
Error reading internal
memory
Replace the card
AL_21: General Key-
off failure
Incorrect key se-
quence.
Detected rebound on the key signal: check
connections and key contact conditions.
AL_22: General Main
rele fail
General relay dama-
ged
The general relay on the board is damaged;
replace the card.
AL_23: General Over-
voltage
Overcurrent Overvoltage detected on function board.
Check battery connections.
AL_24: Traction Batt
connection
Battery not connected
to the function board
Check usage mode of the traction function.
High working current has been detected by
the traction motor.
AL_25: General
Keyboard fail
Lack of communica-
tion dashboard-board
Check connections between the function board
and dashboard.