This is a listing of all current Thermo King Alarm Codes for trucks, trailers, CR, DAS and DSR alarm codes. On multi-temp units, the zone will be identified. Please record all alarms that occur to assist the technician in resolving an issue. Alarm codes with parenthesis (XX) may exist with alarm code 84 and may clear automatically.
Status: Green = OK to Run
Description: No Alarms Exist
Operator Action: No action required.
Status: Yellow = Check as Specified
Description: Check Evaporator Coil Sensor (Zone)
Operator Action: Manually monitor temperature. Report alarm at end of day.
Status: Yellow = Check as Specified
Description: Check (Control) Return Air Sensor (Zone)
Operator Action: Manually monitor temperature. Report alarm at end of day.
Status: Yellow = Check as Specified
Description: Check (Control) Discharge Air Sensor (Zone)
Operator Action: Manually monitor temperature. Report alarm at end of day.
Status: Green = OK to Run
Description: Check Ambient Temp Sensor
Operator Action: Report alarm at end of day.
Status: Green = OK to Run
Description: Check Coolant Temp Sensor
Operator Action: Report alarm at end of day.
Status: Green = OK to Run
Description: Check Engine RPM Sensor
Operator Action: Report alarm at end of day.
Status: Yellow = Check as Specified
Description: Unit Running on Coil Sensor (Zone)
Operator Action: Manually monitor temperature. Report alarm at end of day.
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.
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.
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.
Status: Red = Take Immediate Action
Description: Sensor or Digital Input Shutdown (Zone)
Operator Action: Unit/zone cannot operate and is shut down. Repair immediately.
Status: Yellow = Check as Specified
Description: Sensor Check (Zone)
Operator Action: Manually monitor temperature. Report alarm at end of day.
Status: Green = OK to Run
Description: Defrost Terminated by Time
Operator Action: Report alarm at end of day.
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.
Status: Green = OK to Run
Description: Manual Start Not Completed
Operator Action: Report alarm at end of day.
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
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.
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.
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.
Status: Yellow = Check as Specified
Description: Cooling Cycle Check (Zone)
Operator Action: Manually monitor temperature. Report alarm at end of day.
Status: Yellow = Check as Specified
Description: Heating Cycle Check (Zone)
Operator Action: Manually monitor temperature. Report alarm at end of day.
Status: Red = Take Immediate Action
Description: Cooling Cycle Fault (Zone)
Operator Action: Unit/zone cannot operate and is shut down. Repair immediately.
Status: Red = Take Immediate Action
Description: Heating Cycle Fault (Zone)
Operator Action: Unit/zone cannot operate and is shut down. Repair immediately.
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.
Status: Yellow = Check as Specified
Description: Check Refrigeration Capacity (Zone)
Operator Action: Manually monitor temperature. Report alarm at end of day.
Status: Red = Take Immediate Action
Description: Vapor Motor RPM High (CR)
Operator Action: Unit cannot operate and is shut down. Repair immediately.
Status: Green = OK to Run
Description: Pretrip or Self Check Abort
Operator Action: Report alarm at end of day.
Status: Yellow = Check as Specified
Description: Defrost Damper Circuit Check (Zone)
Operator Action: Manually monitor temperature. Report alarm at end of day
Status: Red = Take Immediate Action
Description: Defrost Damper Stuck Closed (Zone)
Operator Action: Unit/zone cannot operate and is shut down. Repair immediately.
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.
Status: Red = Take Immediate Action
Description: Refrigeration Capacity Low (Zone)
Operator Action: Unit/zone cannot operate and is shut down. Repair immediately.
Status: Green = OK to Run
Description: Check Engine RPM
Operator Action: Report alarm at end of day.
Status: Yellow = Check as Specified
Description: Check Modulation Circuit
Operator Action: Manually monitor temperature. Report alarm at end of day.
Status: Red = Take Immediate Action
Description: Check Run Relay Circuit
Operator Action: Unit cannot operate and is shut down. Repair immediately.
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
Status: Green = OK to Run
Description: Check Engine Coolant Level
Operator Action: Report alarm at end of day.
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.
Status: Yellow = Check as Specified
Description: Check Water Valve Circuit
Operator Action: Manually monitor temperature. Report alarm at end of day.
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.
Status: Yellow = Check as Specified
Description: Check Engine Coolant Temp
Operator Action: Report alarm at end of day.
Status: Yellow = Check as Specified
Description: Unit Forced to Low Speed
Operator Action: Report alarm at end of day.
Status: Green = OK to Run
Description: Unit Forced to Low Speed Modulation
Operator Action: Report alarm at end of day.
Status: Red = Take Immediate Action
Description: Check Fuel System
Operator Action: Add fuel as necessary. Otherwise, report alarm at end of day.
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
Status: Yellow = Check as Specified
Description: Check Air Flow (Zone)
Operator Action: Manually monitor temperature. Report alarm at end of day.
Status: Red = Take Immediate Action
Description: Remote Sensor Shutdown
Operator Action: Unit/zone cannot operate and is shut down. Repair immediately.
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.
Status: Green = OK to Run
Description: Check Spare Sensor 1
Operator Action: Report alarm at end of day.
Status: Green = OK to Run
Description: Reset Clock
Operator Action: Report alarm at end of day.
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.
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.
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.
Status: Green = OK to Run
Description: Test Mode Timeout
Operator Action: Clear alarm and restart unit.
Status: Green = OK to Run
Description: Check Engine Speeds
Operator Action: Report alarm at end of day.
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.
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.
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.
Status: Red = Take Immediate Action
Description: Ammeter Out of Calibration
Operator Action: Unit cannot operate and is shut down. Repair immediately.
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.
Status: Green = OK to Run
Description: Pretrip Reminder
Operator Action: Report alarm at end of day.
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.
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.
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.
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.
Status: Green = OK to Run
Description: Hourmeter Failure
Operator Action: Report alarm at end of day.
Status: Green = OK to Run
Description: Hourmeter 4 Exceeds Set Time Limit
Operator Action: Report alarm at end of day.
Status: Green = OK to Run
Description: Hourmeter 5 Exceeds Set Time Limit
Operator Action: Report alarm at end of day.
Status: Green = OK to Run
Description: Hourmeter 6 Exceeds Set Time Limit
Operator Action: Report alarm at end of day.
Status: Green = OK to Run
Description: Controller Reset to Defaults
Operator Action: Report alarm at end of day.
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.
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.
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.
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.
Status: Green = OK to Run
Description: Internal Data Logger Overflow
Operator Action: Report alarm at end of day.
Status: Green = OK to Run
Description: Check Compressor Temp Sensor
Operator Action: Report alarm at end of day.
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.
Status: Red = Take Immediate Action
Description: High Compressor Temp Shutdown
Operator Action: Unit cannot operate and is shut down. Repair immediately.
Status: Green = OK to Run
Description: Low Engine Coolant Temp
Operator Action: Report alarm at end of day.
Status: Green = OK to Run
Description: Restart Null
Operator Action: Report alarm at end of day.
Status: Green = OK to Run
Description: Forced Unit Operation
Operator Action: Report alarm at end of day.
Status: Green = OK to Run
Description: Check Discharge Pressure Sensor
Operator Action: Report alarm at end of day.
Status: Green = OK to Run
Description: Check Suction Pressure Sensor
Operator Action: Report alarm at end of day.
Status: Green = OK to Run
Description: Reserved for CR
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.
Status: Green = OK to Run
Description: Electric Overload
Operator Action: If unit is shut down repair immediately. Otherwise, report alarm at end of day.
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.
Status: Green = OK to Run
Description: Sensor Grades Not Set (Zone)
Operator Action: Report alarm at end of day.
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.
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.
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.
Status: Yellow = Check as Specified
Description: Low Fuel Level
Operator Action: Add fuel as required
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.
Status: Green = OK to Run
Description: Check Fuel Level Sensor
Operator Action: Report alarm at end of day.
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.
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.
Status: Red = Take Immediate Action
Description: Controlling on Evap Coil Outlet Temp (CR)
Operator Action: Manually monitor temperature. Report alarm at end of day.
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.
Status: Yellow = Check as Specified
Description: Low Heater Fuel Level (CR)
Operator Action: Manually monitor temperature. Report alarm at end of day.
Status: Yellow = Check as Specified
Description: Check Remote Fan Speed (Zone)
Operator Action: Manually monitor temperature. Report alarm at end of day.
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.
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.
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.
Status: Yellow = Check as Specified
Description: Door Open Timeout (Zone)
Operator Action: Close doors. Report alarm at end of day.
Description: Check High Discharge Pressure Sensor
Operator Action: Replaced by Alarm Code 86
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.
Status: Green = OK to Run
Description: Unit Not Configured Correctly (Zone)
Operator Action: Report alarm at end of day
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.
Status: Yellow = Check as Specified
Description: Check Electric Heat Circuit (Zone)
Operator Action: Manually monitor temperature. Report alarm at end of day.
Status: Red = Take Immediate Action
Description: Multiple Alarms – Can Not Run (Zone)
Operator Action: Unit/zone cannot operate and is shut down. Repair immediately.
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.
Status: Green = OK to Run
Description: Check High Pressure Cut In Switch
Operator Action: Report alarm at end of day.
Status: Green = OK to Run
Description: Auto Switch from Diesel to Electric
Operator Action: Normal operation – does not affect performance.
Status: Green = OK to Run
Description: Auto Switch from Electric to Diesel
Operator Action: Normal operation – does not affect performance.
Description: Reserved for CR
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.
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.
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.
Status: Yellow = Check as Specified
Description: Check Evap Coil Inlet Temp Sensor (CR)
Operator Action: Manually monitor temperature. Report alarm at end of day.
Status: Green = OK to Run
Description: Check Evap Coil Outlet Temp Sensor (CR)
Operator Action: Report alarm at end of day.
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.
Status: Yellow = Check as Specified
Description: Check Back Pressure Regulator (CR)
Operator Action: Manually monitor temperature. Report alarm at end of day.
Status: Yellow = Check as Specified
Description: Setpoint Not Entered (Zone)
Operator Action: Be sure setpoint is adjusted to required temperature.
Status: Green = OK to Run
Description: Engine Run Time Maint Reminder #1/Service Due
Operator Action: Report alarm at end of day.
Status: Green = OK to Run
Description: Engine Run Time Maint Reminder #2
Operator Action: Report alarm at end of day.
Status: Green = OK to Run
Description: Engine Run Time Maint Reminder #1
Operator Action: Report alarm at end of day.
Status: Green = OK to Run
Description: Electric Run Time Maint Reminder #2
Operator Action: Report alarm at end of day.
Status: Green = OK to Run
Description: Total Unit Run Time Maint Reminder #1
Operator Action: Report alarm at end of day.
Status: Green = OK to Run
Description: Total Unit Run Time Maint Reminder #2
Operator Action: Report alarm at end of day.
Status: Green = OK to Run
Description: Controller Power On Hours
Operator Action: Report alarm at end of day.
Status: Green = OK to Run
Description: Check Spare Digital Inputs
Operator Action: Report alarm at end of day.
Status: Green = OK to Run
Description: Check Spare Digital Outputs
Operator Action: Report alarm at end of day.
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.
Status: Green = OK to Run
Description: Log DAS Real-Time Clock Battery Failure (DAS)
Operator Action: Report alarm at end of day.
Status: Green = OK to Run
Description: Abort Evacuation Mode
Operator Action: Report alarm at end of day.
Description: Not currently used
Status: Yellow = Check as Specified
Description: Auto Switch Diesel to Electric Disabled
Operator Action: Report alarm at end of day.
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.
Status: Green = OK to Run
Description: Check Remote Drain Hose Heater Output (Zone)
Operator Action: Report alarm at end of day.
Status: Red = Take Immediate Action
Description: Lost CAN Communications to Expansion Module
Operator Action: Unit cannot operate and is shut down. Repair immediately.
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.
Status: Green = OK to Run
Description: Software Version Mismatch
Operator Action: Report alarm at end of day.
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.
Status: Yellow = Check as Specified
Description: Auto Switch Electric to Diesel Disabled
Operator Action: Report alarm at end of day.
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.
Status: Green = OK to Run
Description: Sensor Out of Range Low (DAS and HMI) (Zone)
Operator Action: Report alarm at end of day.
Status: Green = OK to Run
Description: Sensor Out of Range High (DAS and HMI) (Zone)
Operator Action: Report alarm at end of day.
Status: Green = OK to Run
Description: DAS Failed Sensor (DAS)
Operator Action: Report alarm at end of day.
Status: Green = OK to Run
Description: Expansion Module Flash Load Failure
Operator Action: Report alarm at end of day.
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.
Status: Red = Take Immediate Action
Description: Lost CAN Communications to HMI
Operator Action: Unit cannot operate and is shut down. Repair immediately.
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.
Status: Green = OK to Run
Description: OptiSet Plus Profile Mismatch
Operator Action: Report alarm at end of day.
Status: Green = OK to Run
Description: Primary Software Failed to Load
Operator Action: Report alarm at end of day.
Status: Green = OK to Run
Description: Check Battery Condition
Operator Action: Report alarm at end of day.
Status: Green = OK to Run
Description: Lost CAN Communications to Radio Expansion Board
Operator Action: Report alarm at end of day.
Status: Green = OK to Run
Description: Log DAS Real Time Clock Invalid (DAS)
Operator Action: Report alarm at end of day.
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.
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.
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.
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.
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.
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.
Status: Yellow = Check as Specified
Description: Log DAS Microprocessor Fault (DAS)
Operator Action: Report alarm at end of day.
Status: Yellow = Check as Specified
Description: Check Display Return Air Sensor (Zone)
Operator Action: Manually monitor temperature. Report alarm at end of day.
Status: Yellow = Check as Specified
Description: Check Display Discharge Air Sensor (Zone)
Operator Action: Manually monitor temperature. Report alarm at end of day.
Status: Green = OK to Run
Description: Check DAS Digital Inputs (DAS)
Operator Action: Report alarm at end of day.
Status: Green = OK to Run
Description: REB Switching Off, Conservative to Full Null
Operator Action: Report alarm at end of day.
Status: Green = OK to Run
Description: Check Relative Humidity Sensor Circuit
Operator Action: Report alarm at end of day.
Status: Green = OK to Run
Description: High Engine Coolant Temperature Check
Operator Action: Report alarm at end of day.
Status: Green = OK to Run
Description: DAS Clock Time Reset (DAS)
Operator Action: Report alarm at end of day.
Status: Green = OK to Run
Description: Check Radio Expansion Board Configuration
Operator Action: Report alarm at end of day.
Status: Green = OK to Run
Description: Check Auto Fresh Air Exchange Circuit
Operator Action: Report alarm at end of day.
Status: Green = OK to Run
Description: REB On Back Up Battery, Alarms Disabled
Operator Action: Report alarm at end of day.
Status: Green = OK to Run
Description: Check Auxiliary Coolant Temp Sensor
Operator Action: Report alarm at end of day.
Status: Yellow = Check as Specified
Description: Check Host Evaporator Blower Low Speed
Operator Action: Not implemented
Status: Yellow = Check as Specified
Description: Check Host Evaporator Blower High Speed
Operator Action: Not implemented
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.
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.
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.
Status: Green = OK to Run
Description: Speed Request Communication Error
Operator Action: Report alarm at end of day.
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.
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.
Status: Green = OK to Run
Description: Engine Wait to Start Time Delay Expired
Operator Action: Report alarm at end of day.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
Status: Yellow = Check as Specified
Description: Generator Op Limit Vout to Frequency Ration
Operator Action: If unit is shut down repair immediately. Otherwise, report alarm at end of day.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
Status: Green = OK to Run
Description: Battery Charger Internal Short
Operator Action: Maintenance information only. Report alarm at end of day.
Status: Green = OK to Run
Description: Battery Charger External Short
Operator Action: Maintenance information only. Report alarm at end of day.
Status: Green = OK to Run
Description: Battery Charger Output Voltage Exceeded Limit
Operator Action: Maintenance information only. Report alarm at end of day.
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.
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.
Status: Green = OK to Run
Description: Battery Charger Temperature Below Operating Range
Operator Action: Maintenance information only. Report alarm at end of day.
Status: Green = OK to Run
Description: Battery Charger AC Input Overvoltage
Operator Action: Maintenance information only. Report alarm at end of day.
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.
Status: Green = OK to Run
Description: Battery Charger Internal Temp Sensor Fault
Status: Green = OK to Run
Description: Battery Charger Charging – Low Battery
Status: Green = OK to Run
Description: Battery Charger Operating Derated Due to High temp
Status: Green = OK to Run
Description: Engine Service Tool Connected
Operator Action: Report alarm at end of day.
Status: Green = OK to Run
Description: Check Crankshaft Speed Sensor
Operator Action: Report alarm at end of day.
Status: Green = OK to Run
Description: Check Camshaft Speed Sensor
Operator Action: Report alarm at end of day.
Status: Green = OK to Run
Description: Check Exhaust Pressure Sensor
Operator Action: Report alarm at end of day.
Status: Green = OK to Run
Description: Check Coolant Temp Sensor
Operator Action: Report alarm at end of day.
Status: Green = OK to Run
Description: Check Fresh Air Temp Sensor
Operator Action: Report alarm at end of day.
Status: Green = OK to Run
Description: Check Fuel Temperature Sensor
Operator Action: Report alarm at end of day.
Status: Green = OK to Run
Description: Check Rail Pressure Sensor
Operator Action: Report alarm at end of day.
Status: Green = OK to Run
Description: Check Intake Pressure Sensor
Operator Action: Report alarm at end of day.
Status: Green = OK to Run
Description: Check Atmospheric Pressure Sensor
Operator Action: Report alarm at end of day.
Status: Green = OK to Run
Description: Check Glow Plug Circuit
Operator Action: Report alarm at end of day.
Status: Green = OK to Run
Description: Check Injectors
Operator Action: Report alarm at end of day.
Status: Green = OK to Run
Description: Check High Pressure Fuel Pump
Operator Action: Report alarm at end of day.
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.
Status: Yellow = Check as Specified
Description: Engine Overspeed
Operator Action: If unit is shut down repair immediately. Otherwise, report alarm at end of day.
Status: Green = OK to Run
Description: Check Injectors
Operator Action: Report alarm at end of day.
Status: Green = OK to Run
Description: Check High Pressure Fuel Pump
Operator Action: Report alarm at end of day.
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.
Status: Yellow = Check as Specified
Description: Engine Overspeed
Operator Action: If unit is shut down repair immediately. Otherwise, report alarm at end of day.
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.
Status: Green = OK to Run
Description: Check EGR System
Operator Action: Report alarm at end of day.
Status: Green = OK to Run
Description: ECU Main Relay Fault
Operator Action: Report alarm at end of day.
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.
Status: Green = OK to Run
Description: TRUCAN Message Timeout
Operator Action: Report alarm at end of day.
Status: Green = OK to Run
Description: Check EGR Temperature Sensor
Operator Action: Report alarm at end of day
Status: Green = OK to Run
Description: Check Intake Air Temperature Sensor
Operator Action: Report alarm at end of day.
Status: Green = OK to Run
Description: Check Exhaust Temperature Sensor
Operator Action: Report alarm at end of day.
Status: Green = OK to Run
Description: ECU Forced Low Speed
Operator Action: Report alarm at end of day.
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.
Status: Green = OK to Run
Description: Crankshaft Position Sensor Error
Operator Action: Report alarm at end of day.
Status: Green = OK to Run
Description: Camshaft Position Sensor Error
Operator Action: Report alarm at end of day.
Status: Green = OK to Run
Description: Engine Coolant Temperature Sensor Error
Operator Action: Report alarm at end of day.
Status: Green = OK to Run
Description: Fuel Temperature Sensor Error
Operator Action: Report alarm at end of day.
Status: Green = OK to Run
Description: Rail Pressure Sensor Error
Operator Action: Report alarm at end of day.
Status: Green = OK to Run
Description: Intake Air Pressure Sensor Error
Operator Action: Report alarm at end of day.
Status: Green = OK to Run
Description: Atmospheric Pressure Sensor Error
Operator Action: Report alarm at end of day.
Status: Green = OK to Run
Description: Glow Plug Circuit Error
Operator Action: Report alarm at end of day.
Status: Green = OK to Run
Description: General Injector Error
Operator Action: Report alarm at end of day.
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.
Status: Green = OK to Run
Description: EGR Valve Actuator Error
Operator Action: Report alarm at end of day.
Status: Green = OK to Run
Description: ECU Power Relay Error
Operator Action: Report alarm at end of day.
Status: Green = OK to Run
Description: Main ECU Relay Error
Operator Action: Report alarm at end of day.
Status: Green = OK to Run
Description: T1 Air Intake Temperature Sensor Error
Operator Action: Report alarm at end of day.
Status: Green = OK to Run
Description: T2 Air Intake Temperature Sensor Error
Operator Action: Report alarm at end of day.
Status: Green = OK to Run
Description: EGR Valve Position Sensor Error
Operator Action: Report alarm at end of day.
Status: Green = OK to Run
Description: Lambda System Error
Operator Action: Report alarm at end of day.
Status: Green = OK to Run
Description: Engine Communication Error
Operator Action: Report alarm at end of day.
Status: Green = OK to Run
Description: Air Flow Meter Error
Operator Action: Report alarm at end of day.
Status: Green = OK to Run
Description: Engine Power Supply Error
Operator Action: Report alarm at end of day.
Status: Green = OK to Run
Description: High Pressure Pump Fuel Metering Unit Error
Operator Action: Report alarm at end of day.
Status: Green = OK to Run
Description: Water in Fuel Sensor Error
Operator Action: Report alarm at end of day.
Status: Green = OK to Run
Description: Major ECU Failures
Operator Action: Report alarm at end of day.
Status: Green = OK to Run
Description: Intake Air System Error
Operator Action: Report alarm at end of day.
Status: Green = OK to Run
Description: Engine Speed Error
Operator Action: Report alarm at end of day.
Status: Green = OK to Run
Description: Fuel Injection Energizing Error
Operator Action: Report alarm at end of day.
Status: Green = OK to Run
Description: High Pressure Pump Wear
Operator Action: Report alarm at end of day.
Status: Green = OK to Run
Description: Engine Running in Safe Mode – Low Speed
Operator Action: Report alarm at end of day.
Status: Green = OK to Run
Description: Fuel Injection System Error
Operator Action: Report alarm at end of day.
Status: Green = OK to Run
Description: Engine Failed to Crank
Operator Action: Report alarm at end of day.
Status: Green = OK to Run
Description: Starter Relay Error
Operator Action: Report alarm at end of day.
Status: Green = OK to Run
Description: T50 Switch Error
Operator Action: Report alarm at end of day.
Status: Green = OK to Run
Description: Variant Coding Error
Operator Action: Report alarm at end of day.
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.
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.
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.
Status: Yellow = Check as Specified
Description: Return Air Temperature Sensor Fault
Operator Action: Report alarm at end of day.
Status: Yellow = Check as Specified
Description: Remote Return Air Temperature Sensor Fault
Operator Action: Report alarm at end of day.
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.
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.
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.
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.
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.
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.
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.
Status: Yellow = Check as Specified
Description: Door 1 Open/Door Switch 1 Failure
Operator Action: Close door. Report alarm at end of day.
Status: Yellow = Check as Specified
Description: Door 2 Open/Door Switch 2 Failure
Operator Action: Close door. Report alarm at end of day.
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.
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.
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.
