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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