Troubleshooting - Bosch ACS 255 Original Instructions Manual

5.

Troubleshooting

Error code Messages
1001 RECOVERY - Service Timeout
1004 RECOVERY - Internal Tank full
RECOVERY - Low pressure in A/C R Ensure quick couplers are connected properly to the service ports on the vehi-
100A
2001 VACUUMING - Perform Recovery
2002 VACUUMING - Leak Detected
5001 R134A RECHARGE - Service
Timeout
5002 R134A RECHARGE - Insufficient
R134a
5005 R134A RECHARGE - Internal Tank
full
5006 R134A RECHARGE - Perform
Recovery
5007 R134A RECHARGE - Perform
Vacuuming
7100 Safety Switch - SS shutdown
7302 PS - Sensor failure
9102 FACTORY SETTING - Not
Complete
A101 TANK FILL - Service Timeout
A103 TANK FILL - Internal Tank full
A105 TANK FILL - Check Ext. valve
A601 R134a TOP UP - Service Timeout
A602 R134a TOP UP - Insufficient
R134a Quantity
C002 OIL RECHARGE - Perform Recovery The pressure is greater than 1400 mbar while recharging. Perform recovery.
C003 OIL RECHARGE - Perform
Vacuuming
C005 OIL RECHARGE - AC high
pressure
D003 PERFORMANCE TEST - Perform
Hose drain
i
The message "Service Timeout" indicates the service timeout for any service phase which is in progress. The
following table indicates the service timeout duration for different service phases.
Service phase
Refrigerant recovery
Recharge oil
Bosch Limited
Actions
Check for blockage in the vehicle A/C system.
R Weight limit reached. Reduce quantity of refrigerant in refrigerant tank.
R Load cell is defective. Contact customer service.
cle A/C system.
R If the couplers are connected properly, try to perform A/C service. If the error
persists, contact customer service.
The pressure is greater than 1400 mbar while vacuuming:
R Continue the recovery.
R Abort the recovery.
Repair the vehicle A/C system.
R Check for blockage in the ACS 255.
R Check if quick couplers are open.
Fill the internal refrigerant tank.
R Weight limit reached. Reduce quantity of refrigerant in internal refrigerant tank.
R Load cell is defective. Contact customer service.
R Continue the recovery.
R Abort the recovery.
Perform vacuuming.
R Allow the unit to cool for 30 minutes and switch on the ACS 255. Try recovery/
hose drain.
R Check if the blue knob on the refrigerant tank is closed. Open the blue knob If
it is closed.
R Contact customer service if the problem persists.
R Contact customer service.
R For error messages 7501, 7502, 7503, 8000 and C001, contact customer ser-
vice
R Self-test failed. See the self test report and take corrective action.
Check for blockage in the ACS 255.
R Weight limit reached. Reduce quantity of refrigerant in refrigerant tank.
R Load cell is defective. Contact customer service.
R Check if the valve on the external tank is open.
R Check if R134a is available in the external tank.
R Check if the vehicle A/C system is on.
R Check for blockage in the ACS 255.
R Check the refrigerant tank scale.
R Check for blockage in the hoses
R Check if the vehicle A/C system is on.
R Check for blockage in the ACS 255.
The pressure is greater than 900 mbar while recharging. Perform vacuuming.
R Check if the fresh oil bottle is connected
R Contact customer service
The pressure is greater than 1400 mbar. Perform hose drain.
Timeout duration (mins)
120
6
Troubleshooting | ACS 255 | 13
ACS 255. .
Service phase
Recharge refrigerant
Hose drain
en
Timeout duration (mins)
15
5
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F 002 DG9 432 2014-12-19