Thermo King Alarm Codes - North America

This is a listing of all current truck, trailer, CR, DAS and DSR alarm codes. On multi-temp units, the zone will be identified. Please record all alarms that occur to assist technician in resolving issue. Alarm codes with parenthesis (XX) may exist with alarm code 84 and may clear automatically.

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Service Locator

THERMO KING TRUCK, TRAILER, CR, DAS, AND DSR ALARM CODES

00

Status: Green = OK to Run

Description: No Alarms Exist

Operator Action: No action required.

02

Status: Yellow = Check as Specified

Description: Check Evaporator Coil Sensor (Zone)

Operator Action: Manually monitor temperature. Report alarm at end of day.

03

Status: Yellow = Check as Specified

Description: Check (Control) Return Air Sensor (Zone)

Operator Action: Manually monitor temperature. Report alarm at end of day.

04

Status: Yellow = Check as Specified

Description: Check (Control) Discharge Air Sensor (Zone)

Operator Action: Manually monitor temperature. Report alarm at end of day.

05

Status: Green = OK to Run

Description: Check Ambient Temp Sensor

Operator Action: Report alarm at end of day.

06

Status: Green = OK to Run

Description: Check Coolant Temp Sensor

Operator Action: Report alarm at end of day.

07

Status: Green = OK to Run

Description: Check Engine RPM Sensor

Operator Action: Report alarm at end of day.

08

Status: Yellow = Check as Specified

Description: Unit Running on Coil Sensor (Zone)

Operator Action: Manually monitor temperature. Report alarm at end of day.

(09)

Status: Yellow = Check as Specified

Description: High Evaporator Temperature (Zone)

Operator Action: If unit/zone is shut down repair immediately. Otherwise, report alarm at end of day.

(10)

Status: Red = Take Immediate Action

Description: High Discharge Pressure (or Temperature)

Operator Action: If unit is shut down repair immediately. Otherwise, report alarm at end of day.

11

Status: Yellow = Check as Specified

Description: Unit or Zone Controlling on Alternate Sensor (Zone)

Operator Action: Manually monitor temperature. Report alarm at end of day.

12

Status: Red = Take Immediate Action

Description: Sensor or Digital Input Shutdown (Zone)

Operator Action: Unit/zone cannot operate and is shut down. Repair immediately.

13

Status: Yellow = Check as Specified

Description: Sensor Check (Zone)

Operator Action: Manually monitor temperature. Report alarm at end of day.

14

Status: Green = OK to Run

Description: Defrost Terminated by Time

Operator Action: Report alarm at end of day.

15

Status: Yellow = Check as Specified

Description: Check Glow Plugs or Intake Air Heater

Operator Action: If unit is shut down repair immediately. Otherwise, report alarm at end of day.

16

Status: Green = OK to Run

Description: Manual Start Not Completed

Operator Action: Report alarm at end of day.

(17)

Status: Yellow = Check as Specified

Description: Engine Failed to Crank

Operator Action: If unit is shut down repair immediately. Otherwise, report alarm at end of day.

(18)

Status: Yellow = Check as Specified

Description: High Engine Coolant Temperature

Operator Action: If unit is shut down repair immediately. Otherwise, report alarm at end of day.

(19)

Status: Yellow = Check as Specified

Description: Low Engine Oil Pressure

Operator Action: If unit is shut down repair immediately. Otherwise, report alarm at end of day.

(20)

Status: Yellow = Check as Specified

Description: Engine (Vapor Motor CR) Failed to Start

Operator Action: If unit/zone is shut down repair immediately. Otherwise, report alarm at end of day.

(21)

Status: Yellow = Check as Specified

Description: Cooling Cycle Check (Zone)

Operator Action: Manually monitor temperature. Report alarm at end of day.

(22)

Status: Yellow = Check as Specified

Description: Heating Cycle Check (Zone)

Operator Action: Manually monitor temperature. Report alarm at end of day.

23

Status: Red = Take Immediate Action

Description: Cooling Cycle Fault (Zone)

Operator Action: Unit/zone cannot operate and is shut down. Repair immediately.

24

Status: Red = Take Immediate Action

Description: Heating Cycle Fault (Zone)

Operator Action: Unit/zone cannot operate and is shut down. Repair immediately.

25

Status: Yellow = Check as Specified

Description: Alternator Check

Operator Action: If unit/zone is shut down repair immediately. Otherwise, report alarm at end of day.

(26)

Status: Yellow = Check as Specified

Description: Check Refrigeration Capacity (Zone)

Operator Action: Manually monitor temperature. Report alarm at end of day.

(27)

Status: Red = Take Immediate Action

Description: Vapor Motor RPM High (CR)

Operator Action: Unit cannot operate and is shut down. Repair immediately.

28

Status: Green = OK to Run

Description: Pretrip or Self Check Abort

Operator Action: Report alarm at end of day.

29

Status: Yellow = Check as Specified

Description: Defrost Damper Circuit Check (Zone)

Operator Action: Manually monitor temperature. Report alarm at end of day.

30

Status: Red = Take Immediate Action

Description: Defrost Damper Stuck Closed (Zone)

Operator Action: Unit/zone cannot operate and is shut down. Repair immediately.

31

Status: Yellow = Check as Specified

Description: Check Oil Pressure Switch

Operator Action: If unit is shut down repair immediately. Otherwise, report alarm at end of day.

32

Status: Red = Take Immediate Action

Description: Refrigeration Capacity Low (Zone)

Operator Action: Unit/zone cannot operate and is shut down. Repair immediately.

33

Status: Green = OK to Run

Description: Check Engine RPM

Operator Action: Report alarm at end of day.

34

Status: Yellow = Check as Specified

Description: Check Modulation Circuit

Operator Action: Manually monitor temperature. Report alarm at end of day.

35

Status: Red = Take Immediate Action

Description: Check Run Relay Circuit

Operator Action: Unit cannot operate and is shut down. Repair immediately.

(36)

Status: Red = Take Immediate Action

Description: Electric Motor Failed to Run

Operator Action: Unit cannot operate and is shut down. Repair immediately. Switch to Diesel Mode

37

Status: Green = OK to Run

Description: Check Engine Coolant Level

Operator Action: Report alarm at end of day.

38

Status: Red = Take Immediate Action

Description: Electric Phase Reversed

Operator Action: If unit/zone is shut down repair immediately. Otherwise, report alarm at end of day.

39

Status: Yellow = Check as Specified

Description: Check Water Valve Circuit

Operator Action: Manually monitor temperature. Report alarm at end of day.

40

Status: Yellow = Check as Specified

Description: Check High Speed Circuit

Operator Action: If unit is shut down repair immediately. Otherwise, report alarm at end of day.

41

Status: Yellow = Check as Specified

Description: Check Engine Coolant Temp

Operator Action: Report alarm at end of day.

42

Status: Yellow = Check as Specified

Description: Unit Forced to Low Speed

Operator Action: Report alarm at end of day.

43

Status: Green = OK to Run

Description: Unit Forced to Low Speed Modulation

Operator Action: Report alarm at end of day.

44

Status: Red = Take Immediate Action

Description: Check Fuel System

Operator Action: Add fuel as necessary. Otherwise, report alarm at end of day.

45

Status: Yellow = Check as Specified

Description: Check Hot Gas or Hot Gas Bypass Circuit

Operator Action: If unit/zone is shut down repair immediately. Otherwise, report alarm at end of day.

46

Status: Yellow = Check as Specified

Description: Check Air Flow (Zone)

Operator Action: Manually monitor temperature. Report alarm at end of day.

47

Status: Red = Take Immediate Action

Description: Remote Sensor Shutdown

Operator Action: Unit/zone cannot operate and is shut down. Repair immediately.

48

Status: Red = Take Immediate Action

Description: Check Belts or Clutch

Operator Action: If unit is shut down repair immediately. Otherwise, report alarm at end of day.

49

Status: Green = OK to Run

Description: Check Spare Sensor 1

Operator Action: Report alarm at end of day.

50

Status: Green = OK to Run

Description: Reset Clock

Operator Action: Report alarm at end of day.

51

Status: Red = Take Immediate Action

Description: Check Shutdown Circuit

Operator Action: If unit/zone is shut down repair immediately. Otherwise, report alarm at end of day.

52

Status: Yellow = Check as Specified

Description: Check Heat Circuit (Zone)

Operator Action: If unit/zone is shut down repair immediately. Otherwise, report alarm at end of day.

53

Status: Yellow = Check as Specified

Description: Check Economizer Valve Circuit

Operator Action: If unit/zone is shut down repair immediately. Otherwise, report alarm at end of day.

54

Status: Green = OK to Run

Description: Test Mode Timeout

Operator Action: Clear alarm and restart unit.

55

Status: Green = OK to Run

Description: Check Engine Speeds

Operator Action: Report alarm at end of day.

56

Status: Yellow = Check as Specified

Description: Check Evaporator Fan Low Speed (Zone)

Operator Action: If unit/zone is shut down repair immediately. Otherwise, report alarm at end of day.

57

Status: Yellow = Check as Specified

Description: Check Evaporator Fan High Speed (Zone)

Operator Action: If unit/zone is shut down repair immediately. Otherwise, report alarm at end of day.

61

Status: Yellow = Check as Specified

Description: Low Battery Voltage

Operator Action: If unit/zone is shut down repair immediately. Otherwise, report alarm at end of day.

62

Status: Red = Take Immediate Action

Description: Ammeter Out of Calibration

Operator Action: Unit cannot operate and is shut down. Repair immediately.

(63)

Status: Red = Take Immediate Action

Description: Engine or Vapor Motor Stopped

Operator Action: If unit is shut down repair immediately. Otherwise, report alarm at end of day.

64

Status: Green = OK to Run

Description: Pretrip Reminder

Operator Action: Report alarm at end of day.

65

Status: Yellow = Check as Specified

Description: Abnormal Temperature Differential (Zone)

Operator Action: If unit/zone is shut down repair immediately. Otherwise, report alarm at end of day.

66

Status: Red = Take Immediate Action

Description: Low Engine Oil Level

Operator Action: If unit is shut down repair immediately. Otherwise, report alarm at end of day.

67

Status: Yellow = Check as Specified

Description: Check Liquid Line Solenoid Circuit (Zone)

Operator Action: If unit/zone is shut down repair immediately. Otherwise, report alarm at end of day.

68

Status: Red = Take Immediate Action

Description: Internal Controller Fault Code

Operator Action: If unit is shut down repair immediately. Otherwise, report alarm at end of day.

70

Status: Green = OK to Run

Description: Hourmeter Failure

Operator Action: Report alarm at end of day.

71

Status: Green = OK to Run

Description: Hourmeter 4 Exceeds Set Time Limit

Operator Action: Report alarm at end of day.

72

Status: Green = OK to Run

Description: Hourmeter 5 Exceeds Set Time Limit

Operator Action: Report alarm at end of day.

73

Status: Green = OK to Run

Description: Hourmeter 6 Exceeds Set Time Limit

Operator Action: Report alarm at end of day.

74

Status: Green = OK to Run

Description: Controller Reset to Defaults

Operator Action: Report alarm at end of day.

75

Status: Red = Take Immediate Action

Description: Controller RAM Failure

Operator Action: If unit is shut down repair immediately. Otherwise, report alarm at end of day.

76

Status: Red = Take Immediate Action

Description: Controller EPROM Failure

Operator Action: If unit is shut down repair immediately. Otherwise, report alarm at end of day.

77

Status: Red = Take Immediate Action

Description: Controller EPROM Checksum Failure

Operator Action: If unit is shut down repair immediately. Otherwise, report alarm at end of day.

78

Status: Red = Take Immediate Action

Description: Data Log EPROM Failure

Operator Action: If unit is shut down repair immediately. Otherwise, report alarm at end of day.

79

Status: Green = OK to Run

Description: Internal Data Logger Overflow

Operator Action: Report alarm at end of day.

80

Status: Green = OK to Run

Description: Check Compressor Temp Sensor

Operator Action: Report alarm at end of day.

81

Status: Red = Take Immediate Action

Description: High Compressor Temp

Operator Action: If unit is shut down repair immediately. Otherwise, report alarm at end of day.

82

Status: Red = Take Immediate Action

Description: High Compressor Temp Shutdown

Operator Action: Unit cannot operate and is shut down. Repair immediately.

83

Status: Green = OK to Run

Description: Low Engine Coolant Temp

Operator Action: Report alarm at end of day.

84

Status: Green = OK to Run

Description: Restart Null

Operator Action: Report alarm at end of day.

85

Status: Green = OK to Run

Description: Forced Unit Operation

Operator Action: Report alarm at end of day.

86

Status: Green = OK to Run

Description: Check Discharge Pressure Sensor

Operator Action: Report alarm at end of day.

87

Status: Green = OK to Run

Description: Check Suction Pressure Sensor

Operator Action: Report alarm at end of day.

88

Status: Green = OK to Run

Description: Reserved for CR

89

Status: Green = OK to Run

Description: Check Electronic Throttling Valve (ETV) Circuit

Operator Action: If unit is shut down repair immediately. Otherwise, report alarm at end of day.

90

Status: Green = OK to Run

Description: Electric Overload

Operator Action: If unit is shut down repair immediately. Otherwise, report alarm at end of day.

91

Status: Green = OK to Run

Description: Check Electric Ready Input

Operator Action: If unit is shut down repair immediately. Otherwise, report alarm at end of day.

92

Status: Green = OK to Run

Description: Sensor Grades Not Set (Zone)

Operator Action: Report alarm at end of day.

93

Status: Green = OK to Run

Description: Low Compressor Suction Pressure

Operator Action: If unit is shut down repair immediately. Otherwise, report alarm at end of day.

94

Status: Green = OK to Run

Description: Check Loader #1 Circuit

Operator Action: If unit is shut down repair immediately. Otherwise, report alarm at end of day.

95

Status: Green = OK to Run

Description: Check Loader #2 Circuit

Operator Action: If unit is shut down repair immediately. Otherwise, report alarm at end of day.

96

Status: Yellow = Check as Specified

Description: Low Fuel Level

Operator Action: Add fuel as required.

97

Status: Red = Take Immediate Action

Description: Failed Remote Return Air Sensor (CR)

Operator Action: If unit/zone is shut down repair immediately. Otherwise, report alarm at end of day.

98

Status: Green = OK to Run

Description: Check Fuel Level Sensor

Operator Action: Report alarm at end of day.

99

Status: Red = Take Immediate Action

Description: High Compressor Pressure Ratio

Operator Action: If unit/zone is shut down repair immediately. Otherwise, report alarm at end of day.

(100)

Status: Yellow = Check as Specified

Description: Heater Fan Failure (CR)

Operator Action: If unit/zone is shut down repair immediately. Otherwise, report alarm at end of day.

101

Status: Red = Take Immediate Action

Description: Controlling on Evap Coil Outlet Temp (CR)

Operator Action: Manually monitor temperature. Report alarm at end of day.

(102)

Status: Yellow = Check as Specified

Description: Low Evaporator Coil Temperature (CR)

Operator Action: If unit/zone is shut down repair immediately. Otherwise, report alarm at end of day.

103

Status: Yellow = Check as Specified

Description: Low Heater Fuel Level (CR)

Operator Action: Manually monitor temperature. Report alarm at end of day.

104

Status: Yellow = Check as Specified

Description: Check Remote Fan Speed (Zone)

Operator Action: Manually monitor temperature. Report alarm at end of day.

105

Status: Yellow = Check as Specified

Description: Check Receiver Tank Press Sol Circuit

Operator Action: If unit is shut down repair immediately. Otherwise, report alarm at end of day.

106

Status: Yellow = Check as Specified

Description: Check Purge Valve Circuit

Operator Action: If unit is shut down repair immediately. Otherwise, report alarm at end of day.

107

Status: Yellow = Check as Specified

Description: Check Condenser Inlet Sol Circuit

Operator Action: If unit is shut down repair immediately. Otherwise, report alarm at end of day.

108

Status: Yellow = Check as Specified

Description: Door Open Timeout (Zone)

Operator Action: Close doors. Report alarm at end of day.

109

Description: Check High Discharge Pressure Sensor

Operator Action: Replaced by Alarm Code 86

110

Status: Yellow = Check as Specified

Description: Check Suction Line Sol Circuit (Zone)

Operator Action: If unit/zone is shut down repair immediately. Otherwise, report alarm at end of day.

111

Status: Green = OK to Run

Description: Unit Not Configured Correctly (Zone)

Operator Action: Report alarm at end of day.

112

Status: Yellow = Check as Specified

Description: Check Remote Fans (Zone)

Operator Action: If unit/zone is shut down repair immediately. Otherwise, report alarm at end of day.

113

Status: Yellow = Check as Specified

Description: Check Electric Heat Circuit (Zone)

Operator Action: Manually monitor temperature. Report alarm at end of day.

114

Status: Red = Take Immediate Action

Description: Multiple Alarms - Can Not Run (Zone)

Operator Action: Unit/zone cannot operate and is shut down. Repair immediately.

115

Status: Yellow = Check as Specified

Description: Check High Pressure Cut Out Switch

Operator Action: If unit is shut down repair immediately. Otherwise, report alarm at end of day.

116

Status: Green = OK to Run

Description: Check High Pressure Cut In Switch

Operator Action: Report alarm at end of day.

117

Status: Green = OK to Run

Description: Auto Switch from Diesel to Electric

Operator Action: Normal operation – does not affect performance.

118

Status: Green = OK to Run

Description: Auto Switch from Electric to Diesel

Operator Action: Normal operation – does not affect performance.

119

Description: Reserved for CR

120

Status: Yellow = Check as Specified

Description: Check Alternator Excite Circuit

Operator Action: If unit is shut down repair immediately. Otherwise, report alarm at end of day.

121

Status: Yellow = Check as Specified

Description: Check PMW Liquid Injection Circuit

Operator Action: If unit is shut down repair immediately. Otherwise, report alarm at end of day.

122

Status: Yellow = Check as Specified

Description: Check Diesel/Electric Circuit

Operator Action: If unit is shut down repair immediately. Otherwise, report alarm at end of day.

123

Status: Yellow = Check as Specified

Description: Check Evap Coil Inlet Temp Sensor (CR)

Operator Action: Manually monitor temperature. Report alarm at end of day.

124

Status: Green = OK to Run

Description: Check Evap Coil Outlet Temp Sensor (CR)

Operator Action: Report alarm at end of day.

125

Status: Yellow = Check as Specified

Description: Check Tank Level Sensor (CR)

Operator Action: If unit is shut down repair immediately. Otherwise, report alarm at end of day.

126

Status: Yellow = Check as Specified

Description: Check Back Pressure Regulator (CR)

Operator Action: Manually monitor temperature. Report alarm at end of day.

127

Status: Yellow = Check as Specified

Description: Setpoint Not Entered (Zone)

Operator Action: Be sure setpoint is adjusted to required temperature.

128

Status: Green = OK to Run

Description: Engine Run Time Maint Reminder #1/Service Due

Operator Action: Report alarm at end of day.

129

Status: Green = OK to Run

Description: Engine Run Time Maint Reminder #2

Operator Action: Report alarm at end of day.

130

Status: Green = OK to Run

Description: Engine Run Time Maint Reminder #1

Operator Action: Report alarm at end of day.

131

Status: Green = OK to Run

Description: Electric Run Time Maint Reminder #2

Operator Action: Report alarm at end of day.

132

Status: Green = OK to Run

Description: Total Unit Run Time Maint Reminder #1

Operator Action: Report alarm at end of day.

133

Status: Green = OK to Run

Description: Total Unit Run Time Maint Reminder #2

Operator Action: Report alarm at end of day.

134

Status: Green = OK to Run

Description: Controller Power On Hours

Operator Action: Report alarm at end of day.

135

Status: Green = OK to Run

Description: Check Spare Digital Inputs

Operator Action: Report alarm at end of day.

136

Status: Green = OK to Run

Description: Check Spare Digital Outputs

Operator Action: Report alarm at end of day.

137

Status: Yellow = Check as Specified

Description: Check Damper Motor Heater Output

Operator Action: If unit/zone is shut down repair immediately. Otherwise, report alarm at end of day.

138

Status: Green = OK to Run

Description: Log DAS Real Time Clock Battery Failure (DAS)

Operator Action: Report alarm at end of day.

139

Status: Green = OK to Run

Description: Abort Evacuation Mode

Operator Action: Report alarm at end of day.

140

Description: Not currently used

141

Status: Yellow = Check as Specified

Description: Auto Switch Diesel to Electric Disabled

Operator Action: Report alarm at end of day.

142

Status: Yellow = Check as Specified

Description: Check Thermax Valve

Operator Action: If unit is shut down repair immediately. Otherwise, report alarm at end of day.

143

Status: Green = OK to Run

Description: Check Remote Drain Hose Heater Output (Zone)

Operator Action: Report alarm at end of day.

144

Status: Red = Take Immediate Action

Description: Lost CAN Communications to Expansion Module

Operator Action: Unit cannot operate and is shut down. Repair immediately.

145

Status: Yellow = Check as Specified

Description: Lost Controller ON Feedback Signal

Operator Action: If unit is shut down repair immediately. Otherwise, report alarm at end of day.

146

Status: Green = OK to Run

Description: Software Version Mismatch

Operator Action: Report alarm at end of day.

147

Status: Yellow = Check as Specified

Description: Check Multi-Temp Fan Speed Control Output (Zone)

Operator Action: Manually monitor temperature. Report alarm at end of day.

148

Status: Yellow = Check as Specified

Description: Auto Switch Electric to Diesel Disabled

Operator Action: Report alarm at end of day.

149

Status: Yellow = Check as Specified

Description: Alarm Not Identified

Operator Action: If unit/zone is shut down repair immediately. Otherwise, report alarm at end of day.

150

Status: Green = OK to Run

Description: Sensor Out of Range Low (DAS and HMI) (Zone)

Operator Action: Report alarm at end of day.

151

Status: Green = OK to Run

Description: Sensor Out of Range High (DAS and HMI) (Zone)

Operator Action: Report alarm at end of day.

152

Status: Green = OK to Run

Description: DAS Failed Sensor (DAS)

Operator Action: Report alarm at end of day.

153

Status: Green = OK to Run

Description: Expansion Module Flash Load Failure

Operator Action: Report alarm at end of day.

154

Status: Yellow = Check as Specified

Description: Low Suction Pressure Switch Failure

Operator Action: If unit is shut down repair immediately. Otherwise, report alarm at end of day.

155

Status: Red = Take Immediate Action

Description: Lost CAN Communications to HMI

Operator Action: Unit cannot operate and is shut down. Repair immediately.

156

Status: Yellow = Check as Specified

Description: Check Suction/Liquid Heat Exchanger Bypass Valve

Operator Action: If unit is shut down repair immediately. Otherwise, report alarm at end of day.

157

Status: Green = OK to Run

Description: OptiSet Plus Profile Mismatch

Operator Action: Report alarm at end of day.

158

Status: Green = OK to Run

Description: Primary Software Failed to Load

Operator Action: Report alarm at end of day.

159

Status: Green = OK to Run

Description: Check Battery Condition

Operator Action: Report alarm at end of day.

160

Status: Green = OK to Run

Description: Lost CAN Communications to Radio Expansion Board

Operator Action: Report alarm at end of day.

161

Status: Green = OK to Run

Description: Log DAS Real Time Clock Invalid (DAS)

Operator Action: Report alarm at end of day.

163

Status: Yellow = Check as Specified

Description: Emission Control Failure

Operator Action: If unit is shut down repair immediately. Otherwise, report alarm at end of day.

175

Status: Yellow = Check as Specified

Description: Check Electronic Expansion Valve (CR)

Operator Action: If unit is shut down repair immediately. Otherwise, report alarm at end of day.

176

Status: Yellow = Check as Specified

Description: Check Evaporator Pressure Sensor (CR)

Operator Action: If unit is shut down repair immediately. Otherwise, report alarm at end of day.

177

Status: Yellow = Check as Specified

Description: Check CO₂ Tank Pressure Sensor (CR)

Operator Action: If unit is shut down repair immediately. Otherwise, report alarm at end of day.

178

Status: Yellow = Check as Specified

Description: Low CO₂ Fuel Level (CR)

Operator Action: If unit is shut down repair immediately. Otherwise, report alarm at end of day.

180

Status: Yellow = Check as Specified

Description: TriPac Compressor Alarm

Operator Action: If unit is shut down repair immediately. Otherwise, report alarm at end of day.

188

Status: Yellow = Check as Specified

Description: Log DAS Microprocessor Fault (DAS)

Operator Action: Report alarm at end of day.

203

Status: Yellow = Check as Specified

Description: Check Display Return Air Sensor (Zone)

Operator Action: Manually monitor temperature. Report alarm at end of day.

204

Status: Yellow = Check as Specified

Description: Check Display Discharge Air Sensor (Zone)

Operator Action: Manually monitor temperature. Report alarm at end of day.

216

Status: Green = OK to Run

Description: Check DAS Digital Inputs (DAS)

Operator Action: Report alarm at end of day.

233

Status: Green = OK to Run

Description: REB Switching Off, Conservative to Full Null

Operator Action: Report alarm at end of day.

234

Status: Green = OK to Run

Description: Check Relative Humidity Sensor Circuit

Operator Action: Report alarm at end of day.

235

Status: Green = OK to Run

Description: High Engine Coolant Temperature Check

Operator Action: Report alarm at end of day.

250

Status: Green = OK to Run

Description: DAS Clock Time Reset (DAS)

Operator Action: Report alarm at end of day.

251

Status: Green = OK to Run

Description: Check Radio Expansion Board Configuration

Operator Action: Report alarm at end of day.

252

Status: Green = OK to Run

Description: Check Auto Fresh Air Exchange Circuit

Operator Action: Report alarm at end of day.

253

Status: Green = OK to Run

Description: REB On Back Up Battery, Alarms Disabled

Operator Action: Report alarm at end of day.

254

Status: Green = OK to Run

Description: Check Auxiliary Coolant Temp Sensor

Operator Action: Report alarm at end of day.

500

Status: Yellow = Check as Specified

Description: Check Host Evaporator Blower Low Speed

Operator Action: Not implemented

501

Status: Yellow = Check as Specified

Description: Check Host Evaporator Blower High Speed

Operator Action: Not implemented

505

Status: Yellow = Check as Specified

Description: Check Roadside Condenser Fan Motor Speed Circuit

Operator Action: If unit is shut down repair immediately. Otherwise, report alarm at end of day.

506

Status: Yellow = Check as Specified

Description: Check Curbside Condenser Fan Motor Speed Circuit

Operator Action: If unit is shut down repair immediately. Otherwise, report alarm at end of day.

507

Status: Green = OK to Run

Description: Check Digital Scroll Output Circuit (Scroll Only)

Operator Action: If unit is shut down repair immediately. Otherwise, report alarm at end of day.

508

Status: Green = OK to Run

Description: Speed Request Communication Error

Operator Action: Report alarm at end of day.

509

Status: Yellow = Check as Specified

Description: ECU Failed to Enable

Operator Action: If unit is shut down repair immediately. Otherwise, report alarm at end of day.

510

Status: Yellow = Check as Specified

Description: ECU Run Signal Failed

Operator Action: If unit is shut down repair immediately. Otherwise, report alarm at end of day.

511

Status: Green = OK to Run

Description: Engine Wait to Start Time Delay Expired

Operator Action: Report alarm at end of day.

512

Status: Yellow = Check as Specified

Description: High Compressor Suction Pressure (Scroll Only)

Operator Action: If unit is shut down repair immediately. Otherwise, report alarm at end of day.

513

Status: Yellow = Check as Specified

Description: Low Compressor Suction Ratio (Scroll Only)

Operator Action: If unit is shut down repair immediately. Otherwise, report alarm at end of day.

514

Status: Yellow = Check as Specified

Description: Low Compressor Discharge Pressure (Scroll Only)

Operator Action: If unit is shut down repair immediately. Otherwise, report alarm at end of day.

515

Status: Yellow = Check as Specified

Description: Minimum ETV Discharge Superheat Temp (Scroll)

Operator Action: If unit is shut down repair immediately. Otherwise, report alarm at end of day.

516

Status: Red = Take Immediate Action

Description: I/O Controller to Application Controller Com Failure

Operator Action: The unit is no longer able to operate and has been shut down. Repair immediately.

518

Status: Yellow = Check as Specified

Description: Generator Ground Fault

Operator Action: If unit is shut down repair immediately. Otherwise, report alarm at end of day.

519

Status: Yellow = Check as Specified

Description: Check Battery Charger Input Power

Operator Action: If unit is shut down repair immediately. Otherwise, report alarm at end of day.

520

Status: Yellow = Check as Specified

Description: Check Battery Charger Output Power

Operator Action: If unit is shut down repair immediately. Otherwise, report alarm at end of day.

521

Status: Yellow = Check as Specified

Description: Battery Charger External/Environmental Fault

Operator Action: If unit is shut down repair immediately. Otherwise, report alarm at end of day.

522

Status: Yellow = Check as Specified

Description: Battery Temperature Sensor Alarm

Operator Action: If unit is shut down repair immediately. Otherwise, report alarm at end of day.

523

Status: Yellow = Check as Specified

Description: Battery Charger Indicated Conditions

Operator Action: If unit is shut down repair immediately. Otherwise, report alarm at end of day.

524

Status: Yellow = Check as Specified

Description: Generator Op Limit V_out to Frequency Ration

Operator Action: If unit is shut down repair immediately. Otherwise, report alarm at end of day.

525

Status: Yellow = Check as Specified

Description: Generator Frequency Range Fault

Operator Action: If unit is shut down repair immediately. Otherwise, report alarm at end of day.

526

Status: Yellow = Check as Specified

Description: Generator Operational Limit Output Current

Operator Action: If unit is shut down repair immediately. Otherwise, report alarm at end of day.

528

Status: Yellow = Check as Specified

Description: Failed J1939 CAN Comm Base Controller/Charger

Operator Action: If unit is shut down repair immediately. Otherwise, report alarm at end of day.

529

Status: Yellow = Check as Specified

Description: Check Fuel Pump Circuit

Operator Action: If unit is shut down repair immediately. Otherwise, report alarm at end of day.

530

Status: Yellow = Check as Specified

Description: Low Pressure Differential (Scroll only)

Operator Action: If unit is shut down repair immediately. Otherwise, report alarm at end of day.

531

Status: Yellow = Check as Specified

Description: Check Economizer Pressure Sensor (Scroll only)

Operator Action: If unit is shut down repair immediately. Otherwise, report alarm at end of day.

538

Status: Yellow = Check as Specified

Description: Engine J1939 CAN Data Link Degraded

Operator Action: If unit is shut down repair immediately. Otherwise, report alarm at end of day.

539

Status: Yellow = Check as Specified

Description: Engine J1939 CAN Data Link Failed

Operator Action: If unit is shut down repair immediately. Otherwise, report alarm at end of day.

540

Status: Yellow = Check as Specified

Description: Illegal Engine Operating State

Operator Action: If unit is shut down repair immediately. Otherwise, report alarm at end of day.

542

Status: Green = OK to Run

Description: Battery Charger Fault – Unit Forced to Low Speed

Operator Action: Maintenance information only. Report alarm at end of day.

543

Status: Green = OK to Run

Description: Battery Charger Internal Short

Operator Action: Maintenance information only. Report alarm at end of day.

544

Status: Green = OK to Run

Description: Battery Charger External Short

Operator Action: Maintenance information only. Report alarm at end of day.

545

Status: Green = OK to Run

Description: Battery Charger Output Voltage Exceeded Limit

Operator Action: Maintenance information only. Report alarm at end of day.

546

Status: Green = OK to Run

Description: Battery Charger Operating Bulk Voltage Out of Range

Operator Action: Maintenance information only. Report alarm at end of day.

547

Status: Yellow = Check as Specified

Description: AC Bus Phase Loss

Operator Action: If unit is shut down repair immediately. Otherwise, report alarm at end of day.

548

Status: Green = OK to Run

Description: Battery Charger Temperature Below Operating Range

Operator Action: Maintenance information only. Report alarm at end of day.

549

Status: Green = OK to Run

Description: Battery Charger AC Input Overvoltage

Operator Action: Maintenance information only. Report alarm at end of day.

550

Status: Yellow = Check as Specified

Description: Battery Charger Internal Overvoltage Fault

Operator Action: If unit is shut down repair immediately. Otherwise, report alarm at end of day.

551

Status: Green = OK to Run

Description: Battery Charger Internal Temp Sensor Fault

552

Status: Green = OK to Run

Description: Battery Charger Charging – Low Battery

553

Status: Green = OK to Run

Description: Battery Charger Operating Derated Due to High temp

599

Status: Green = OK to Run

Description: Engine Service Tool Connected

Operator Action: Report alarm at end of day.

600

Status: Green = OK to Run

Description: Check Crankshaft Speed Sensor

Operator Action: Report alarm at end of day.

601

Status: Green = OK to Run

Description: Check Camshaft Speed Sensor

Operator Action: Report alarm at end of day.

603

Status: Green = OK to Run

Description: Check Exhaust Pressure Sensor

Operator Action: Report alarm at end of day.

604

Status: Green = OK to Run

Description: Check Coolant Temp Sensor

Operator Action: Report alarm at end of day.

605

Status: Green = OK to Run

Description: Check Fresh Air Temp Sensor

Operator Action: Report alarm at end of day.

607

Status: Green = OK to Run

Description: Check Fuel Temperature Sensor

Operator Action: Report alarm at end of day.

608

Status: Green = OK to Run

Description: Check Rail Pressure Sensor

Operator Action: Report alarm at end of day.

609

Status: Green = OK to Run

Description: Check Intake Pressure Sensor

Operator Action: Report alarm at end of day.

610

Status: Green = OK to Run

Description: Check Atmospheric Pressure Sensor

Operator Action: Report alarm at end of day.

611

Status: Green = OK to Run

Description: Check Glow Plug Circuit

Operator Action: Report alarm at end of day.

613

Status: Green = OK to Run

Description: Check Injectors

Operator Action: Report alarm at end of day.

614

Status: Green = OK to Run

Description: Check High Pressure Fuel Pump

Operator Action: Report alarm at end of day.

615

Status: Yellow = Check as Specified

Description: Rail Pressure Fault

Operator Action: If unit is shut down repair immediately. Otherwise, report alarm at end of day.

616

Status: Yellow = Check as Specified

Description: Engine Overspeed

Operator Action: If unit is shut down repair immediately. Otherwise, report alarm at end of day.

617

Status: Yellow = Check as Specified

Description: Internal ECU Fault

Operator Action: If unit is shut down repair immediately. Otherwise, report alarm at end of day.

618

Status: Green = OK to Run

Description: Check EGR System

Operator Action: Report alarm at end of day.

619

Status: Green = OK to Run

Description: ECU Main Relay Fault

Operator Action: Report alarm at end of day.

620

Status: Yellow = Check as Specified

Description: No RPM Detected During Start Attempt

Operator Action: If unit is shut down repair immediately. Otherwise, report alarm at end of day.

623

Status: Green = OK to Run

Description: TRUCAN Message Timeout

Operator Action: Report alarm at end of day.

624

Status: Green = OK to Run

Description: Check EGR Temperature Sensor

Operator Action: Report alarm at end of day.

625

Status: Green = OK to Run

Description: Check Intake Air Temperature Sensor

Operator Action: Report alarm at end of day.

626

Status: Green = OK to Run

Description: Check Exhaust Temperature Sensor

Operator Action: Report alarm at end of day.

642

Status: Green = OK to Run

Description: ECU Forced Low Speed

Operator Action: Report alarm at end of day.

699

Status: Yellow = Check as Specified

Description: Unknown ECU Fault

Operator Action: If unit is shut down repair immediately. Otherwise, report alarm at end of day.

800

Status: Green = OK to Run

Description: Crankshaft Position Sensor Error

Operator Action: Report alarm at end of day.

801

Status: Green = OK to Run

Description: Camshaft Position Sensor Error

Operator Action: Report alarm at end of day.

804

Status: Green = OK to Run

Description: Engine Coolant Temperature Sensor Error

Operator Action: Report alarm at end of day.

807

Status: Green = OK to Run

Description: Fuel Temperature Sensor Error

Operator Action: Report alarm at end of day.

808

Status: Green = OK to Run

Description: Rail Pressure Sensor Error

Operator Action: Report alarm at end of day.

809

Status: Green = OK to Run

Description: Intake Air Pressure Sensor Error

Operator Action: Report alarm at end of day.

810

Status: Green = OK to Run

Description: Atmospheric Pressure Sensor Error

Operator Action: Report alarm at end of day.

811

Status: Green = OK to Run

Description: Glow Plug Circuit Error

Operator Action: Report alarm at end of day.

813

Status: Green = OK to Run

Description: General Injector Error

Operator Action: Report alarm at end of day.

815

Status: Yellow = Check as Specified

Description: Fuel Pressure Regulator Error

Operator Action: If unit is shut down repair immediately. Otherwise, report alarm at end of day.

818

Status: Green = OK to Run

Description: EGR Valve Actuator Error

Operator Action: Report alarm at end of day.

819

Status: Green = OK to Run

Description: ECU Power Relay Error

Operator Action: Report alarm at end of day.

820

Status: Green = OK to Run

Description: Main ECU Relay Error

Operator Action: Report alarm at end of day.

825

Status: Green = OK to Run

Description: T1 Air Intake Temperature Sensor Error

Operator Action: Report alarm at end of day.

826

Status: Green = OK to Run

Description: T2 Air Intake Temperature Sensor Error

Operator Action: Report alarm at end of day.

827

Status: Green = OK to Run

Description: EGR Valve Position Sensor Error

Operator Action: Report alarm at end of day.

828

Status: Green = OK to Run

Description: Lambda System Error

Operator Action: Report alarm at end of day.

829

Status: Green = OK to Run

Description: Engine Communication Error

Operator Action: Report alarm at end of day.

830

Status: Green = OK to Run

Description: Air Flow Meter Error

Operator Action: Report alarm at end of day.

832

Status: Green = OK to Run

Description: Engine Power Supply Error

Operator Action: Report alarm at end of day.

833

Status: Green = OK to Run

Description: High Pressure Pump Fuel Metering Unit Error

Operator Action: Report alarm at end of day.

834

Status: Green = OK to Run

Description: Water in Fuel Sensor Error

Operator Action: Report alarm at end of day.

836

Status: Green = OK to Run

Description: Major ECU Failures

Operator Action: Report alarm at end of day.

838

Status: Green = OK to Run

Description: Intake Air System Error

Operator Action: Report alarm at end of day.

839

Status: Green = OK to Run

Description: Engine Speed Error

Operator Action: Report alarm at end of day.

840

Status: Green = OK to Run

Description: Fuel Injection Energizing Error

Operator Action: Report alarm at end of day.

841

Status: Green = OK to Run

Description: High Pressure Pump Wear

Operator Action: Report alarm at end of day.

842

Status: Green = OK to Run

Description: Engine Running in Safe Mode – Low Speed

Operator Action: Report alarm at end of day.

843

Status: Green = OK to Run

Description: Fuel Injection System Error

Operator Action: Report alarm at end of day.

844

Status: Green = OK to Run

Description: Engine Failed to Crank

Operator Action: Report alarm at end of day.

845

Status: Green = OK to Run

Description: Starter Relay Error

Operator Action: Report alarm at end of day.

846

Status: Green = OK to Run

Description: T50 Switch Error

Operator Action: Report alarm at end of day.

847

Status: Green = OK to Run

Description: Variant Coding Error

Operator Action: Report alarm at end of day.

853

Status: Yellow = Check as Specified

Description: Engine Overspeed (No DTC)

Operator Action: If unit is shut down repair immediately. Otherwise, report alarm at end of day.

854

Status: Yellow = Check as Specified

Description: Engine Protection Self Shutdown

Operator Action: If unit is shut down repair immediately. Otherwise, report alarm at end of day.

899

Status: Yellow = Check as Specified

Description: Unknown ECU Fault

Operator Action: If unit is shut down repair immediately. Otherwise, report alarm at end of day.

P1E

Status: Yellow = Check as Specified

Description: Return Air Temperature Sensor Fault

Operator Action: Report alarm at end of day.

P2E

Status: Yellow = Check as Specified

Description: Remote Return Air Temperature Sensor Fault

Operator Action: Report alarm at end of day.

OL

Status: Red = Take Immediate Action

Description: Electric Standby Overload

Operator Action: If unit is shut down repair immediately. Otherwise, report alarm at end of day.

bAt

Status: Red = Take Immediate Action

Description: Low Battery Voltage

Operator Action: If unit is shut down repair immediately. Otherwise, report alarm at end of day.

HP

Status: Red = Take Immediate Action

Description: High Discharge Pressure

Operator Action: If unit is shut down repair immediately. Otherwise, report alarm at end of day.

LP

Status: Red = Take Immediate Action

Description: Low Suction Pressure

Operator Action: If unit is shut down repair immediately. Otherwise, report alarm at end of day.

PSE

Status: Red = Take Immediate Action

Description: High Pressure Sensor Fault

Operator Action: If unit is shut down repair immediately. Otherwise, report alarm at end of day.

tEP

Status: Red = Take Immediate Action

Description: Electric Standby Motor Thermal Protection Alarm

Operator Action: If unit is shut down repair immediately. Otherwise, report alarm at end of day.

tP4

Status: Red = Take Immediate Action

Description: Power Supply Thermal Protection Alarm

Operator Action: If unit is shut down repair immediately. Otherwise, report alarm at end of day.

dr1

Status: Yellow = Check as Specified

Description: Door 1 Open/Door Switch 1 Failure

Operator Action: Close door. Report alarm at end of day.

dr2

Status: Yellow = Check as Specified

Description: Door 2 Open/Door Switch 2 Failure

Operator Action: Close door. Report alarm at end of day.

tCO

Status: Red = Take Immediate Action

Description: Electronic Control Module Internal Temperature Exceeds Limit

Operator Action: If unit is shut down repair immediately. Otherwise, report alarm at end of day.

SOF

Status: Red = Take Immediate Action

Description: Microprocessor Software Failure

Operator Action: If unit is shut down repair immediately. Otherwise, report alarm at end of day.

- C -

Status: Red = Take Immediate Action

Description: Communications Failure, Microprocessor to In-Cab Control Box

Operator Action: If unit is shut down repair immediately. Otherwise, report alarm at end of day.

Latin America

North America (Oct-2-2023)

Africa

Asia Pacific

Europe

India

Middle East

Russia/CIS

Dealer Locator

Dealer Locator

North America - Sample

North America

Thermo King Alarm Codes - North America

THERMO KING TRUCK, TRAILER, CR, DAS, AND DSR ALARM CODES

00

Status: Green = OK to Run

02

Status: Yellow = Check as Specified

03

Status: Yellow = Check as Specified

04

Status: Yellow = Check as Specified

05

Status: Green = OK to Run

06

Status: Green = OK to Run

07

Status: Green = OK to Run

08

Status: Yellow = Check as Specified

(09)

Status: Yellow = Check as Specified

(10)

Status: Red = Take Immediate Action

11

Status: Yellow = Check as Specified

12

Status: Red = Take Immediate Action

13

Status: Yellow = Check as Specified

14

Status: Green = OK to Run

15

Status: Yellow = Check as Specified

16

Status: Green = OK to Run

(17)

Status: Yellow = Check as Specified

(18)

Status: Yellow = Check as Specified

(19)

Status: Yellow = Check as Specified

(20)

Status: Yellow = Check as Specified

(21)

Status: Yellow = Check as Specified

(22)

Status: Yellow = Check as Specified

23

Status: Red = Take Immediate Action

24

Status: Red = Take Immediate Action

25

Status: Yellow = Check as Specified

(26)

Status: Yellow = Check as Specified

(27)

Status: Red = Take Immediate Action

28

Status: Green = OK to Run

29

Status: Yellow = Check as Specified

30

Status: Red = Take Immediate Action

31

Status: Yellow = Check as Specified

32

Status: Red = Take Immediate Action

33

Status: Green = OK to Run