Carrier 30XA/XAS/XB/XBP/XW Chillers
60 fault codes documented
10078 — High discharge gas temperature, circuit A
The discharge gas temperature on circuit A is too high. Circuit A will shut down.
10079 — High discharge gas temperature, circuit B
The discharge gas temperature on circuit B is too high. Circuit B will shut down.
10080 — High discharge gas temperature, circuit C
The discharge gas temperature on circuit C is too high. Circuit C will shut down.
10081 — Suction valve closed, circuit A
The suction valve on circuit A is closed, preventing normal operation. Circuit A will shut down.
10082 — Suction valve closed, circuit B
The suction valve on circuit B is closed. Circuit B will shut down.
10083 — Suction valve closed, circuit C
The suction valve on circuit C is closed. Circuit C will shut down.
10087 — Slide valve control unverifiable, circuit A
The system cannot verify the slide valve control on circuit A. No action is taken by the unit, but this indicates a potential problem.
10088 — Slide valve control unverifiable, circuit B
The slide valve control on circuit B cannot be verified. This may indicate an issue with solenoid valves or the current transformer.
10089 — Slide valve control unverifiable, circuit C
The slide valve control for circuit C is unverifiable. This alert requires attention.
10090 — Flow controller configuration fault
There is an error in the flow controller's configuration. The unit will not be allowed to restart until corrected.
10091 — Flow controller fault – evaporator flow switch failure
The evaporator flow switch within the flow controller has failed. Compressors and the evaporator pump will stop.
10094 — Free cooling operation failure, circuit A
Free cooling operation on circuit A has failed. Circuit A will shut down, but free cooling can restart after 30 minutes. This may be due to a refrigerant pump fault.
10095 — Free cooling operation failure, circuit B
Free cooling operation on circuit B has failed. Circuit B will shut down, but free cooling can restart after 30 minutes. This may be due to a refrigerant pump fault.
10097 — Water exchanger temperature sensors swapped
The temperature sensors for the water exchanger have been swapped. The unit will shut down.
10100 — Electrical box fan failure (units with HFO only)
The fan in the electrical box has malfunctioned (for units using HFO). The unit will shut down.
12001 — Discharge transducer fault, circuit A
The pressure transducer measuring discharge gas pressure on circuit A has a fault. Circuit A will shut down.
12002 — Discharge transducer fault, circuit B
The pressure transducer measuring discharge gas pressure on circuit B has a fault. Circuit B will shut down.
12003 — Discharge transducer fault, circuit C
The pressure transducer measuring discharge gas pressure on circuit C has a fault. Circuit C will shut down.
12004 — Suction transducer fault, circuit A
The pressure transducer measuring suction gas pressure on circuit A has a fault. Circuit A will shut down.
12005 — Suction transducer fault, circuit B
The pressure transducer measuring suction gas pressure on circuit B has a fault. Circuit B will shut down.
12006 — Suction transducer fault, circuit C
The pressure transducer measuring suction gas pressure on circuit C has a fault. Circuit C will shut down.
12007 — Heat reclaim pump-down pressure transducer fault, circuit A
The pressure transducer for heat reclaim pump-down on circuit A has a fault. The reclaim session will stop, and the unit will return to air-cooled mode.
12008 — Heat reclaim pump-down pressure transducer fault, circuit B
The pressure transducer for heat reclaim pump-down on circuit B has a fault. The reclaim session will stop, and the unit will return to air-cooled mode.
12010 — Oil pressure transducer fault, circuit A
The oil pressure transducer on circuit A has a fault. Circuit A will shut down.
12011 — Oil pressure transducer fault, circuit B
The oil pressure transducer on circuit B has a fault. Circuit B will shut down.
12012 — Oil pressure transducer fault, circuit C
The oil pressure transducer on circuit C has a fault. Circuit C will shut down.
12013 — Economizer pressure transducer fault, circuit A
The economizer pressure transducer on circuit A has a fault. Circuit A will shut down.
12014 — Economizer pressure transducer fault, circuit B
The economizer pressure transducer on circuit B has a fault. Circuit B will shut down.
12015 — Economizer pressure transducer fault, circuit C
The economizer pressure transducer on circuit C has a fault. Circuit C will shut down.
15001 — Evaporator entering water thermistor fault
The sensor measuring the evaporator's incoming water temperature has detected an issue. This can cause the unit to shut down.
15002 — Evaporator leaving water thermistor fault
The sensor measuring the evaporator's outgoing water temperature has detected an issue. The unit will shut down.
15003 — Defrost thermistor fault, circuit A
The sensor monitoring the temperature for defrost on circuit A has failed. The unit may display an alert or shut down.
15004 — Defrost thermistor fault, circuit B
The sensor monitoring the temperature for defrost on circuit B has failed. In cooling mode, an alert is displayed; in heating mode, circuit B shuts down.
15006 — Condenser entering water thermistor fault
The sensor for the condenser's incoming water temperature has a fault. The unit shuts down in heating mode.
15007 — Condenser leaving water thermistor fault
The sensor for the condenser's outgoing water temperature has a fault. The unit will shut down.
15008 — Reclaim condenser entering thermistor fault, circuit A
The sensor for the entering temperature of the reclaim condenser on circuit A is faulty. The unit will return to air-cooled mode.
15009 — Reclaim condenser leaving thermistor fault, circuit B
The sensor for the leaving temperature of the reclaim condenser on circuit B has a fault. The unit will return to air-cooled mode.
15010 — OAT thermistor fault
The Outdoor Air Temperature (OAT) thermistor has a fault. The unit will shut down.
15011 — Master/slave common water thermistor fault
A thermistor that monitors common water temperature in a master/slave setup has failed. Master/slave operation will be disabled, and the unit will operate in stand-alone mode.
15012 — Suction gas thermistor fault, circuit A
The sensor for suction gas temperature on circuit A has a fault. Circuit A will shut down.
15013 — Suction gas thermistor fault, circuit B
The sensor for suction gas temperature on circuit B has a fault. Circuit B will shut down.
15014 — Suction gas thermistor fault, circuit C
The sensor for suction gas temperature on circuit C has a fault. Circuit C will shut down.
15015 — Discharge gas thermistor fault, circuit A
The sensor for discharge gas temperature on circuit A has a fault. Circuit A will shut down.
15016 — Discharge gas thermistor fault, circuit B
The sensor for discharge gas temperature on circuit B has a fault. Circuit B will shut down.
15017 — Discharge gas thermistor fault, circuit C
The sensor for discharge gas temperature on circuit C has a fault. Circuit C will shut down.
15018 — Condenser subcooling liquid thermistor fault, circuit A
The sensor for condenser subcooling liquid temperature on circuit A has a fault. The unit will return to air-cooled mode.
15019 — Condenser subcooling liquid thermistor fault, circuit B
The sensor for condenser subcooling liquid temperature on circuit B has a fault. The unit will return to air-cooled mode.
15021 — Space temperature thermistor fault
The thermistor monitoring the space temperature has a fault. No specific action is taken, but system performance might be affected.
15023 — Evaporator heater feedback thermistor fault
The feedback thermistor for the evaporator heater has a fault. No specific action is taken, but the heater function might be impacted.
15024 — Economizer gas thermistor fault, circuit A
The economizer gas thermistor for circuit A has a fault. The economizer function will be disabled.
15025 — Economizer gas thermistor fault, circuit B
The economizer gas thermistor for circuit B has a fault. The economizer function will be disabled.
15026 — Economizer gas thermistor fault, circuit C
The economizer gas thermistor for circuit C has a fault. The economizer function will be disabled.
15030 — Free cooling liquid thermistor fault, circuit A
The free cooling liquid thermistor for circuit A has a fault. The free cooling function will be disabled.
15031 — Free cooling liquid thermistor fault, circuit B
The free cooling liquid thermistor for circuit B has a fault. The free cooling function will be disabled.
15032 — MASTER/Slave Common Heat Fluid Thermistor Fault
The thermistor monitoring the common heat fluid in a master/slave configuration has a fault. Master/slave operation will be disabled.
15036 — Dry Cooler Leaving thermistor failure
The thermistor measuring the leaving temperature of the dry cooler has failed. There is no specific action taken, but the system may not operate optimally.
15046 — Free Cooling Water Loop Thermistor Failure
The thermistor monitoring the free cooling water loop has failed. Free cooling will be disabled.
15047 — Free Cooling Leaving Water Thermistor Failure
The thermistor measuring the leaving water temperature for free cooling has failed. Free cooling will be disabled.
15048 — Free Cooling OAT Thermistor Failure
The Outdoor Air Temperature (OAT) thermistor used for free cooling has failed. Free cooling will be disabled.
15050 — Cooler Leaving Fluid #2 Thermistor Fault
There is a problem with the sensor that measures the temperature of the fluid leaving the cooler. The unit will shut down.