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Before approach the unit wear the personal protective systems
The responsibility for the effects on people, animals or property resulting from inspection and repair work is entirely attri
the technician who works on the equipment. The suggestions given on the following pages are only indicative and the
manufacturer declines all responsibility for them.
Alarm messages are coded Axxx in the window title bar.
CODE
MESSAGE
When it occurs
A000
EEPROM NOT WORKING
In case of faults in the
EEPROM memory
A001
EEPROM DATA CORRUPT
In case of faults in the
EEPROM
A002
PRESSURE SAFETY SWITCH
ACTIVATED
High pressure is over 18
bar
A003
ADC NOT WORKING
After turning on the
equipment
A004
FAN NOT WORKING
Only during R
use
A006
EAXXXX not working
Electronic board
problems
A009
SENSORS ERROR:
Sensors not connected
or in short circuit
A032
CIRCUIT STILL UNDER
PRESSURE
During vacuum,
filling or leak test phase
in vacuum
A033
CIRCUIT LEAKAGE
During vacuum,
recharge or leak test
phase
A034
VACUUM LEVEL TOO LOW
During
A035
BOTTLE EMPTY
During the gas charging
and flushing phase
A036
BOTTLE REFRIGERANT
QUANTITY TOO LOW
During the gas charging
and flushing phase
A037
FURTHER REFRIGERANT
CHARGE NOT POSSIBLE
During gas
phase
A038
CIRCUIT LEAKAGE OR
DISCONNECTED
During flushing phase
| ACX380/480
Before approach the unit wear the personal protective systems
The responsibility for the effects on people, animals or property resulting from inspection and repair work is entirely attri
the equipment. The suggestions given on the following pages are only indicative and the
manufacturer declines all responsibility for them.
Alarm messages are coded Axxx in the window title bar. Alarms immediately terminate the procedure and prevent its
When it occurs
Possible situations
Possible solutions
In case of faults in the
EEPROM memory
EEPROM damaged
Change the logic electronic
board
In case of faults in the
EEPROM memory
EEPROM damaged
Change the logic electronic
board
High pressure is over 18
bar
High pressure (due to
pressure on bottle or
circuit to bottle closed)
on refrigerant circuit
between equipment’s
compressor and internal
bottle.
Verify
If internal
is over 18 bar, wait for
pressure reduction
disconnect equipment from the
mains, use safety protection,
open equipment and make
sure the valves between
compressor and internal
are open
After turning on the
equipment
ADC fault
Replacement of logic
electronic board.
Only during R-1234yf
use
Fan not working properly
(stopped or fan’s rpm
not adequate)
Stop use of the equipment
check fan connections and
if necessary, change fan and
related cables with a new one
change logic electronic board
with new one.
Electronic board
problems
Faults on the electronics
components or
connections
Updates the firmware
Sensors not connected
or in short circuit
Sensors disconnected or
damaged.
To check electrical
connections or change with
new spare part.
During vacuum, bottle
filling or leak test phase
in vacuum
The vehicle A/C system
is pressurized
Recover the refrigerant gas
from the vehicle before starting
another vacuum phase.
During vacuum, bottle
recharge or leak test
phase
Leakage in the circuit or
in the vehicle fittings.
Identify the leak position in the
vehicle or connected system
and have it repaired by trained
and qualified staff according to
local legislation.
During charging phase
Vehicle A/C system is
pressurized
notwithstanding the
vacuum phase
Identify the leak position in the
vehicle or connected system
and have it repaired by trained
and qualified staff according to
local legislation.
During the gas charging
and flushing phase
Refrigerant gas is too
low for the procedure to
be completed
Fill the internal tank
During the gas charging
and flushing phase
Gas amount in internal
tank less than required
Fill the internal tank
During gas charging
phase
Hoses not hooked up to
A/C system; tap closed;
vacuum not sufficient;
presence of pressure in
the circuit
Caution: before proceeding,
empty out the hoses.
Repeat the recovery procedure
and increase the
phase duration.
During flushing phase
Leakages or
obstructions in the
circuit to be flushed
Check the connection to the
A/C system or identify the leak
in the circuit and have it
repaired by trained and
qualified staff according to
local legislation.
ACX380/480 | 42 en
The responsibility for the effects on people, animals or property resulting from inspection and repair work is entirely attributable to
the equipment. The suggestions given on the following pages are only indicative and the
Alarms immediately terminate the procedure and prevent its resumption.
Possible solutions
Change the logic electronic
Change the logic electronic
If internal bottle pressure level
is over 18 bar, wait for
pressure reduction
disconnect equipment from the
mains, use safety protection,
open equipment and make
re the valves between
compressor and internal bottle
Replacement of logic
electronic board.
Stop use of the equipment
check fan connections and
if necessary, change fan and
related cables with a new one
change logic electronic board
with new one.
Updates the firmware
To check electrical
connections or change with
new spare part.
Recover the refrigerant gas
from the vehicle before starting
another vacuum phase.
Identify the leak position in the
vehicle or connected system
and have it repaired by trained
and qualified staff according to
local legislation.
Identify the leak position in the
vehicle or connected system
and have it repaired by trained
and qualified staff according to
local legislation.
Fill the internal tank
Fill the internal tank
Caution: before proceeding,
empty out the hoses.
Repeat the recovery procedure
and increase the vacuum
phase duration.
Check the connection to the
A/C system or identify the leak
in the circuit and have it
repaired by trained and
ed staff according to
local legislation.
Summary of Contents for ACX380
Page 1: ...MAHLE ACX380 480 EN Service Manual A C Service Equipment...
Page 31: ...en 31 ACX380 480 APPENDIX 1 REFRIGERANT FLUID CIRCUIT ACX380 480 H...
Page 33: ...en 33 ACX380 480 Recovery cycle H...
Page 34: ...ACX380 480 34 en Vacuum H...
Page 35: ...en 35 ACX380 480 Recharge H...
Page 45: ...MAHLE Aftermarket Italy S p A Via Quasimodo 4 a 43126 Par ma ITALY 2019 10 28...