Carrier AQUASNAP 30RB Series Controls And Troubleshooting page 112

ALARM CODE DESCRIPTIONS (continued)
ALARM CODE ALARM DESCRIPTION
Process faults
P-14 Water flow control and customer interlock fault
P-16 Compressor A1 not started or no pressure increase
P-17 Compressor A2 not started or no pressure increase
P-18 Compressor A3 not started or no pressure increase
P-19 Compressor A4 not started or no pressure increase
P-20 Compressor B1 not started or no pressure increase
P-21 Compressor B2 not started or no pressure increase
P-22 Compressor B3 not started or no pressure increase
P-23 Compressor B4 not started or no pressure increase
P-24 Compressor C1 not started or no pressure increase
P-25 Compressor C2 not started or no pressure increase
P-26 Compressor C3 not started or no pressure increase
P-27 Compressor C4 not started or no pressure increase
P-28 Control box thermostat or phase reversal detected
P-29 Communication loss with the System Manager
P-30 Communicaiton loss between master and slave
MC-nn Master chiller No. 1 configuration error at nn
FC-n0 No factory configuration
FC-01 Illegal factory configuration number
P-31 CCN emergency stop
P-32 Fault water pump 1
P-33 Fault water pump 2
P-15 Condenser flow controller fault
P-34 Reclaim operation failure, circuit A
P-35 Reclaim operation failure, circuit B
P-37 Repeated high pressure unloading, circuit A
P-38 Repeated high pressure unloading, circuit B
P-39 Repeated high pressure unloading, circuit C
P-40 Repeated low suction temperature unloading in
heating mode, circuit A
P-41 Repeated low suction temperature unloading in
heating mode, circuit B
P-42 Repeated low suction temperature unloading, circuit C
P-43 Heat exchanger temperature too low, less than 10°C,
prevents unit start-up
Maintenance alarms
A1-01 Maintenance alert, service number nn
Compressor faults
A1-01 Fault, compressor A1 N°1
A1-nn Fault, compressor A1 N°nn
A2-01 Fault, compressor A2 N°1
A2-nn Fault, compressor A2 N°nn
A3-01 Fault, compressor A3 N°1
A3-nn Fault, compressor A3 N°nn
A4-01 Fault, compressor A4 N°1
A4-nn Fault, compressor A4 N°nn
B1-01 Fault, compressor B1 N°1
B1-nn Fault, compressor B1 N°nn
B2-01 Fault, compressor B2 N°1
B2-nn Fault, compressor B2 N°nn
B3-01 Fault, compressor B3 N°1
B3-nn Fault, compressor B3 N°nn
B4-01 Fault, compressor B4 N°1
B4-nn Fault, compressor B4 N°nn
RESET TYPE
Automatic if the unit is in manual shut-down status,
otherwise manual.
Manual
Manual
Manual
Manual
Manual
Manual
Manual
Manual
Manual
Manual
Manual
Manual
Automatic when the contact closes again
Automatic when communication is re-established
Automatic when communication is re-established
Automatic when the master configuration returns to
normal or when the unit is no longer in master/slave
mode
Automatic when the configuration is entered
Manual
Manual
Manual
Manual
Manual
Manual
Manual
Automatic
Automatic
Automatic
Manual
Manual
Manual
Automatic when the temperature detected returns to
normal or when the mode returns to cooling
Manual
See compressor alarm subcode
See compressor alarm subcode
See compressor alarm subcode
See compressor alarm subcode
See compressor alarm subcode
See compressor alarm subcode
See compressor alarm subcode
See compressor alarm subcode
See compressor alarm subcode
See compressor alarm subcode
See compressor alarm subcode
See compressor alarm subcode
See compressor alarm subcode
See compressor alarm subcode
See compressor alarm subcode
See compressor alarm subcode
112
PROBABLE CAUSE
Evaporator pump defect or water flow switch fault
Connection problem
Connection problem
Connection problem
Connection problem
Connection problem
Connection problem
Connection problem
Connection problem
Connection problem
Connection problem
Connection problem
Connection problem
Control box badly ventilated or poor electrical
connection
CCN installation bus defective
CCN installation bus defective
Master/slave configuration error
The unit size has not been configured
The unit size has been configured with the wrong
value
Network command
Pump overheating or poor pump connection
Pump overheating or poor pump connection
Sensor defective
Sensor defective or low condenser water flow rate
Sensor defective or low condenser water flow rate
Transducer defective or ventilation circuit fault
As above
As above
Pressure sensor defective or refrigerant charge too
low
As above
As above
Operating compressor protection out of range or
pressure sensor fault
The preventive maintenance date has passed