Thermo King Alarm Codes & Fault Codes

Thermo King Straight Truck Units – Most Popular

# 1   MD 200

# 2   TS 300

# 3   TS 500

# 4   RD II- SR

Thermo King Trailer Units - Most Popular

# 1  SB-III SR

# 2  SB- 210/210+

# 3  SB-310/310+

#4   SB 400

# 5   Spectrum

Thermo King Alarm Codes Defined:

  • 00   NO ALARMS EXIST
  • 01   MICROPROCESSOR POWER UP RESET
  • 02   CHECK EVAPORATOR COIL SENSOR
  • 03  CHECK RETURN AIR SENSOR
  • 04  CHECK DISCHARGE AIR SENSOR
  • 05  CHECK AMIBENT TEMP SENSOR
  • 06  CHECK COOLANT TEMP SENSOR
  • 07  CHECK ENGINE RPM SENSOR
  • 08  UNIT RUNNING IN COIL SENSOR
  • 09  HIGH EVAPORATOR TEMPERATURE
  • 10  HIGH DISCHARGE PRESSURE (OR TEMP)
  • 11  UNIT CONTROLLING ON ALTERNATE SENSOR
  • 12  SENSOR OR DIGTAL INPUT SHUTDOWN
  • 13  SENSOR CHECK
  • 14  DEFROSAT TERMINATE BY TIME
  • 15  CHECK GLOW PLUGS OR INTAKE AIR HEATER
  • 16  MANUAL START NOT COMPLETED
  • 17  ENGINE FAILED TO CRANK
  • 18  HIGH ENGINE COOLANT TEMPERATURE
  • 19  LOW ENGINE OIL PRESSURE
  • 20  ENGINE ( VAPOR MOTOR CR) FAILED TO START
  • 21  COOLING CYCLE CHECK
  • 22  HEATING CYCLE FAULT
  • 23  COOLING CYCLE FAULT
  • 24  HEATING CYCLE FAULT
  • 25  ALTERNATOR CHECK
  • 26  CHECK REFRIGERATION CAPACITY
  • 27  VAPOR MOTOR RPM HIGH (CR)
  • 28  PRETIP OR SELF CHECK ABORT
  • 29  DEFROST DAMPER CIRCUIT CHECK
  • 31  CHECK   OIL PRESSURE SWITCH
  • 32  REFRIGERATION CAPACITY LOW
  • 33  CHECK ENGINE RPM
  • 34  CHECK MODULATION CIRCUIT
  • 35  CHECK RUN RELAY CIRCUIT
  • 36  ELECTRIC MOTOR FAILED TO RUN
  • 37  CHECK ENGINE COOLANT LEVEL
  • 38    ELECTRIC PHASE REVERSED
  • 39    CHECK WATER VALVE CIRCUIT
  • 40    CHECK HIGH SPEED CIRCUIT
  • 41     CHECK ENGINE COOLANT TEMP
  • 42    UNIT FORCED TO LOW SPEED
  • 43    UNIT FORCED TO LOW SPEED MODULATION
  • 44    CHECK FUEL SYATEM
  • 45    CHECK HOT GAS OR HOT GAS BYPASS CIRCUIT
  • 46    CHECK AIR FLOW
  • 47    REMOTE SENSOR SHUTDOWN
  • 48    CHECK BELTS OR CLUTCH
  • 49    RESERVED FOR CR
  • 50    RESET CLOCK
  • 51    CHECK SHUTDOWN CIRCUIT
  • 52    CHECK HEAT CIRCUIT
  • 53   CHECK ECONOMIZER VALVE CIRCUIT
  • 54   TEST MODE TIMEOUT
  • 55   CHECK ENGINE SPEEDS
  • 56   CHECK EVAPORTOR FAN LOW SPEED
  • 57   CHECK EVAPORTOR FAN HIGH SPEED
  • 58  CHECK CONDENSER FAN LOW SPEED
  • 59  CHECK CONDENSER FAN HIGH  SPEED
  • 60  CHECK BOOST CIRCUIT
  • 61  LOW BATTERY VOLTAGE
  • 62  AMMETER OUT CALIBRATION
  • 63  ENGINE OR VAPOR MOTOR STOPPED
  • 64  PRETRIP REMINDER
  • 65  ABNORMOL  TEMPERATURE DIFFERENTIAL
  • 66  LOW ENGINE OIL LEVEL
  • 67  CHECK LIQUID LINE SOLENOID CIRCUIT
  • 68  INTERNAL CONTROLLER FAULT CODE
  • 69 CHECK REMAGNETIZATION CIRCUIT
  • 70  HOURMETER FAILURE
  • 71 HOURMETER 4 EXCEEDS SET TIME LIMIT
  • 72  HOURMETER EXCEEEDS SET TIME LIMIT
  • 73  HOURMETER 6 EXCEEDS SET TIME LIMIT
  • 74 CONTROLLEER RESET TO DEFAULTS
  • 75  CONTROLLER RAM FAILURE
  • 76  CONTROLLER EPROM FAILURE
  • 77 CONTROLLER  EPROM CHECKSUM FALIURE
  • 78  DATA LOG EPROM FAILURE
  • 79  INTERNAL DATA LOGGER OVERFLOW
  • 80  CHECK COMPRESSOR TEMP SENSOR
  • 81  HIGH COMPRESSOR TEMP
  • 82  HIGH COMPRESSOR TEMP SHUTDOWN
  • 83  LOW ENGINE COOLANT TEMP
  • 84  RESTART NULL
  • 85  FORCED UNIT OPERATION
  • 86  CHECK DISCHARGE PRESSURE SENSOR
  • 87  CHECK SUCTION PRESSURE SENSOR
  • 88  RESERVED FOR CR
  • 89   CHECK ELECTRONIC THROTTLING VALVE CIRCUIT
  • 90  ELECTRIC OVERLOAD
  • 91  CHECK ELECTRIC READY INPUT
  • 92   SENSOR GRADES NOT SET
  • 93   LOW COMPRESSOR SUCTION PRESSURE
  • 94    CHECK LOADER # 1 CIRCUIT
  • 95   CHECK LOADER # 2 CIRCUIT
  • 96    LOW FUEL LEVEL
  • 97    FAILED  REMOTE RETURN AIR SENSOR
  • 98    CHECK FUEL LEVEL SENSOR
  • 99    HIGH COMPRESSOR PRESSURE RATIO
  • 100  HEATER FAN FAILURE
  • 101    CONTROLLING ON EVAP COIL OUTLET TEMP
  • 102  LOW EVAPORATOR COIL TEMPERATURE
  • 103  LOW HEATER FUEL LEVEL
  • 104 CHECK REMOTE FAN SPEED
  • 105  CHECK RECEIVER TANK PRESS SOL CIRCUIT
  • 106  CHECK PURGE VALVE CIRCUIT
  • 107  CHECK CONDEENSOR INLET SOL CIRCUIT
  • 108  DOOR OPEN TIMEOUT
  • 109  CHECK HIGH DISCHARGE PRESSURE SENSOR
  • 110  CHECK SUCTION LINE SOL CIRCUIT
  • 111  UNIT NOT CONFIGURED CORRECTLY
  • 112  CHECK REMOTE FANS
  • 113 CHECK ELERCTRIC HEAT CIRCUIT
  • 114 MULTIPLE ALARMS- CAN NOT RUN
  • 115  CHECK HIGH PRESSURE CUT OUT SWITCH
  • 116  CHECK HIGH PRESSURE CUT IN SWITCH
  • 117  AUTO SWITCH FROM DIESEL TO ELECTRIC
  • 118   AUTO SWITCH FROM ELECTRIC  TO DIESEL
  • 119   RESERVED FOR CR
  • 120  CHECK ALTERNATOR EXCITE CIRCUIT
  • 121  CHECK PMW LIQUID INJECTION CIRCUIT
  • 122  CHECK DIESEL/ELECTRIC CIRCUIT
  • 123  CHECK EVAP COIL INLET TEMP SENSOR
  • 124  CHECK EVAP COIL OUTLET TEMP SENSOR
  • 125  CHECK TANK LEVEL SENSOR
  • 126  CHECK BACK PRESSURE REGULATOR
  • 127  SETPOINT NOT ENTERED
  • 128  ENGINE RUN TIME MAINT REMINDER # 1
  • 129  ENGINE RUN TIME MAINT REMINDER # 2
  • 130  ENGINE RUN TIME MAINT REMINDER # 1
  • 131  ENGINE RUN TIME MAINT REMINDER # 2
  • 132  TOTAL UNIT RUN TIME MAINT REMINDER # 1
  • 133  TOTAL UNIT RUN TIME MAINT REMINDER # 2
  • 134  CONTROLLER POWER ON HOURS
  • 135  CHECK SPARE DIGITAL INTPUTS
  • 136  CHECK SPARE DIGITAL OUTPUTS
  • 137  CHECK DAMPER MOTOR HEATER OUTPUT
  • 203  CHECK REDUNDANT RETURN AIR SENSOR
  • 204  CHECK REDUNDANT DISCHARGE AIR SENSOR

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