Carrier 30WG Operation Instructions Manual page 33

Alarm codes (cont.)
Code Description
10008 Circuit A High Suction Superheat
10009 Circuit B High Suction Superheat
10011 Circuit A Low Suction Superheat
10012 Circuit B Low Suction Superheat
10015 Condenser Flow Switch Failure
10016 Compressor A1 Not Started or Pressure Increase
not Established
10017 Compressor A2 Not Started or Pressure Increase
not Established
10018 Compressor A3 Not Started or Pressure Increase
not Established
10020 Compressor B1 Not Started or Pressure Increase
not Established
10021 Compressor B2 Not Started or Pressure Increase
not Established
10028 Customer Interlock Failure
10029 Loss of communication with System Manager
10030 Master/Slave communication Failure
10031 Unit is in CCN emergency stop
10032 Cooler pump 1 default
10033 Cooler pump 2 default
10037 Circuit A Repeated High Discharge Gas Overrides
10038 Circuit B Repeated High Discharge Gas Overrides
10040 Circuit A Repeated low suction temperature
overrides
10041 Circuit B Repeated low suction temperature
overrides
10043 Low entering water temperature in heating
10051 Cooler flow switch failure
10063 Circuit A High pressure switch Failure
10064 Circuit B High pressure switch Failure
10073 Condenser pump 1 default
10074 Condenser pump 2 default
10097 Cooler Water Exchanger Temperature Sensors
Swapped
10098 Condenser Water Exchanger Temperature Sensors
Swapped
Possible cause Action taken
Pressure transducer Circuit A shuts down
defective, temp. sensor
defective, EXV blocked
or lack of refrigerant
As above Circuit B shuts down
As above Circuit A shuts down
As above Circuit B shuts down
Abnormal conditions Unit shuts down
on condenser side
Compressor breaker or Compressor A1 shuts down
fuse fault, compressor
switch open
As above Compressor A2 shuts down Manual
As above Compressor A3 shuts down Manual
As above Compressor B1 shuts down Manual
As above Compressor B2 shuts down Manual
Customer interlock Unit shuts down
input set on
Communication error Unit returns to the
standalone mode
Bus installation fault Master/Slave control is
stopped / Unit returns to
the stand-alone mode
Network emergency Unit shuts down
stop command
Flow switch or water Unit is restarted with
pump fault another pump running; If
no pump is available, the
unit shuts down
Flow switch or water As above
pump fault
Repetitive capacity None OR circuit A shuts
decreases down
As above None OR circuit B shuts
down
As above Circuit A shuts down
As above Circuit B shuts down
Low entering fluid temp. None
in Heating mode
Flow switch fault Unit shuts down
High pressure switch is Circuit A shuts down
open, compressor fault
As above Circuit B shuts down
Water pump fault Unit is restarted with
another pump running; If
no pump is available, the
unit shuts down
As above Unit is restarted with
another pump running; If
no pump is available, the
unit shuts down
Inlet and outlet temp. Unit shuts down
reversed
As above Unit shuts down
Reset type
Manual
Manual
Manual
Manual
Automatic (7 alarms within 24
hours); otherwise, Manual
Manual
Automatic (if the unit was
stopped); otherwise, Manual
Automatic, if communication
with System Manager is
restored
Automatic, if communication is
restored
Automatic, if emergency stop
is deactivated
Manual
Manual
Automatic (no discharge gas
overrides within 30 min) or
Manual
As above
Manual
Manual
Automatic, if water temperature
returns to normal or heating
mode is stopped
Manual
Manual
Manual
Manual
Manual
Manual
Manual
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