Alarm Code Descriptions
Color Code Definitions
| OK TO RUN | CHECK AS SPECIFIED | TAKE IMMEDIATE ACTION |
| Alarm | Description | |
|---|---|---|
| Manual Start | ||
| OL |
Electric Motor Overload (Electric standby models only) - The electric motor overload relay has tripped due to excessive current draw. If the problem persists when the unit is restarted, contact your Thermo King Dealer. |
|
| bAt | Low Battery Voltage - Check vehicle battery. | |
| Auto Start | ||
| HP |
High Pressure Alarm - The system has detected excessively high discharge pressure. If the problem persists when the unit is restarted, contact your Thermo King Dealer. |
|
| LP |
Low Pressure Alarm - The system has detected excessively low suction pressure. If the problem persists when the unit is restarted, contact your Thermo King Dealer. |
|
| PSE |
High Pressure Sensor Failure - The high pressure sensor has become faulty or disconnected. Contact your Thermo King Dealer. |
|
| tEP, tP4 | Thermal Protection Alarm - If the problem persists when the unit is restarted, contact your Thermo King Dealer. | |
| dr1, dr2 |
Cargo Doors Are Open (Units with door switch option only) - Check if the Doors are open. if not, then the door switches are faulty, or improper door switch configuration. Contact your Thermo King Dealer. |
|
| tCO |
Control Module Overheating If the problem persists when the unit is restarted, contact your Thermo King Dealer. |
|
| SOF |
Software Failure Contact your Thermo King Dealer. |
|
| P1E |
Faulty Cargo Box Return Air Temperature Sensor - Faulty or disconnected return air temperature sensor. Contact your Thermo King Dealer. |
|
| P2E |
Remote Cargo Box Return Air Temperature Reading Error (open circuit or short-circuit) Contact your Thermo King Dealer. |
|
| C |
Communications Failure Contact your Thermo King Dealer. |
|
| H01 |
DSR communication lost - Communication lost to the other Electronic Control Module. |
|
| H02 |
HMI communication lost - Communication lost to the HMI. |
|
| H03 |
SCM communication lost - Communication lost to Smart Charger Module. |
|
| H04 |
CDM communication lost - Communication lost to Compressor Drive Module. |
|
| H0A |
Low Power Mode Activation - ignition key of the vehicle is disconnected and the unit is not connected to the shore power. Operation of the unit may be inhibited but remains operational. |
|
| H0B |
Sleep Mode Activation- While the unit OFF, the vehicle battery voltage dropped below a threshold. Normal operation of the controller will resume as soon as the power is restored. |
|
| H0C |
Power Derating Shutdown - Low Voltage Shutdown alarm - your battery voltage has dropped below a defined level. The shutdown alarm is automatically cleared once the voltage rises over this limit once more. |
|
| H10 |
Internal flash erase error - Internal, System reset needed |
|
| H12 |
Default parameters in use - This will typically happen after a new firmware version has been loaded. |
|
| H15 |
eMMC erase error - An error occurred while loading parameters to the DSR-IV Controller. |
|
| H16 |
eMMC write error - An error occurred while loading parameters to the DSR-IV Controller or performing the datalogging process. |
|
| H17 |
eMMC read error - An error during powering-up when reading configuration paramenters. |
|
| H18 |
Flash Loading Failed - An error occurred while loading firmware to the DSR-IV Controller. |
|
| H1A |
Non-Compatible SW - Indicates that one of the Electronic components contains an incorrect or out-of-date Software version. |
|
Compressor Drive Module Alarms
| H21 |
Phase overcurrent- Shutdown alarm |
||
| H2A |
Overcurrent of DC/DC converter- Shutdown alarm |
||
| H22 |
Input overvoltage - Shutdown alarm |
||
| H23 |
Input undervoltage - Consider let the engine run to allow the alternator to charge the vehicle battery. |
||
| H24 |
Motor Endstage temperature too high - Shutdown alarm |
||
| H25 |
Motor controller communication error - Critical, Motor controller alarm |
||
| H26 |
Locked Rotor - Critical, Motor controller alarm |
||
| H27 |
Compressor start-up failure - Critical, Motor controller alarm |
||
| H28 |
Phase Loss - One of the phases carrying current to the Compressor Drive Module (CDM) is disconnected. |
||
| H40 |
CFLT activated |
||
Battery Management Alarms
| H50 to H5D |
Battery internal alarm (Thermal or Voltage problem) - Shutdown alarm |
||
| H5E |
Battery communications lost - Shutdown alarm |
||
| H5F |
Low Battery warning. - Please connect your unit to shore power to charge the TK Battery. |
||
| H60 to H63 |
Battery internal alarm (internal sensors) - Shutdown alarm |
||
| H6B, H6C |
Battery deeply discharged. - Please connect your unit to shore power to charge the TK Battery |
||
| H6D |
BMS communication lost. - Restart the E-200. |
||
| H70 to H77 |
SCM Charging Condition. - Restart the E-200. |
||
| H78, H79 |
Over Temperature in the Power Supply Unit (Main Unit) - Let the unit cool down, then restart the E-200. |
||
| H7A. H7B |
Relay Malfunction - Shutdown alarm |
||
| H7C, H7D |
Batteries current imbalance warning (2 Battery Application ONLY) - Please connect E-200 to shore power to charge the TK battery. |
||
| Alarm | Description |
|---|---|
| Manual Start | |
| OL | Electric Motor Overload. Unit protection system during electric standby operation. |
| bAt | Low Battery Voltage. Unit and battery protection system. |
| Auto Start | |
| HP | High Pressure Alarm. Indicates that the refrigeration system will shut down in the event of excessively high pressure in the refrigerant circuit. |
| LP | Low Pressure Alarm. Indicates that the refrigeration system will shut down in the event of excessively low pressure in the refrigerant circuit. |
| PSE | High Pressure Sensor Failure. The high pressure sensor has become faulty or disconnected. |
| tEP | Electric standby motor thermal protection alarm |
| tP4 | Power supply thermal protection alarm. Indicates that the power source thermal protection circuit has opened due to overheating of the power source or circuit failure. |
| dr1, dr2 | Doors Open. This option must be activated. |
| tCO (Hot) | Electronic Control Module Overheating. |
| SOF | Software failure. The software in the microprocessor is corrupted. |
| P1E | Main or Single Cargo Box Return Air Temperature Reading Error (open circuit or short-circuit). |
| P2E | Remote Cargo Box Return Air Temperature Reading Error (open circuit or short-circuit). |
| C | Communication error between the cab control box and the ECM Electronic Control Module. |
Color Code Definitions
| OK TO RUN | CHECK AS SPECIFIED | TAKE IMMEDIATE ACTION |
| Alarm | Description | |
|---|---|---|
| Manual Start | ||
| OL |
Electric Motor Overload (Electric standby models only) - The electric motor overload relay has tripped due to excessive current draw. If the problem persists when the unit is restarted, contact your Thermo King Dealer. |
|
| bAt | Low Battery Voltage - Check vehicle battery. | |
| Auto Start | ||
| HP |
High Pressure Alarm - The system has detected excessively high discharge pressure. If the problem persists when the unit is restarted, contact your Thermo King Dealer. |
|
| LP |
Low pressure alarm – The system has detected excessively low suction pressure and has protected the compressor from an abnormal condition. Unit operation will resume automatically once the normal suction pressure is restored, and the alarm can be cleared (see Clearing Alarm Codes). Among other reasons, this could be due to:
If the problem persists when the unit is restarted, contact your Thermo King dealer. |
|
| PSE |
High Pressure Sensor Failure - The high pressure sensor has become faulty or disconnected. Contact your Thermo King Dealer. |
|
| tEP, tP4 | Thermal Protection Alarm - If the problem persists when the unit is restarted, contect your Thermo King Dealer | |
| dr1, dr2 |
Cargo Doors Are Open (Units with door switch option only) - Check if the Doors are open. if not, then the door switches are faulty, or improper door switch configuration. Contact your Thermo King Dealer. |
|
| tCO |
Control Module Overheating If the problem persists when the unit is restarted, contact your Thermo King Dealer. |
|
| SOF |
Software Failure Contact your Thermo King Dealer. |
|
| P1E |
Faulty Cargo Box Return Air Temperature Sensor - Faulty or disconnected return air temperature sensor. Contact your Thermo King Dealer. |
|
| P2E |
Remote Cargo Box Return Air Temperature Reading Error (open circuit or short-circuit) Contact your Thermo King Dealer. |
|
| C |
Communications Failure Contact your Thermo King Dealer. |
|
| H01 |
DSR communication lost - Communication lost to the other Electronic Control Module. Contact your Thermo King Dealer. |
|
| H02 |
HMI communication lost - Communication lost to the HMI. Contact your Thermo King Dealer. |
|
| H03 |
SCM communication lost - Communication lost to Smart Charger Module. If the problem persists when the unit is restarted, contact your Thermo King Dealer. |
|
| H04 |
CDM communication lost - Communication lost to Compressor Drive Module. Contact your Thermo King Dealer. |
|
| H0A |
Low Power Mode Activation - ignition key of the vehicle is disconnected, and the unit is not connected to the shore power. Operation of the unit may be inhibited but remains operational. Report Alarm at the end of the day. |
|
| H0B |
Sleep Mode Activation- While the unit OFF, the vehicle battery voltage dropped below a threshold. Normal operation of the controller will resume as soon as the power is restored. Report Alarm at the end of the day. |
|
| H0C |
Power Derating Shutdown - Low Voltage Shutdown alarm - your battery voltage has dropped below a defined level. The shutdown alarm is automatically cleared once the voltage rises over this limit once more. Contact your Thermo King Dealer. |
|
| H10 |
Internal flash erase error - Internal, System reset needed Report Alarm at the end of the day. |
|
| H12 |
Default parameters in use - This will typically happen after a new firmware version has been loaded. If the problem persists when the unit is restarted, contact your Thermo King Dealer. |
|
| H15 |
eMMC erase error - An error occurred while loading parameters to the DSR-IV Controller. Internal, System reset needed, contact your Thermo King Dealer. |
|
| H16 |
eMMC write error - An error occurred while loading parameters to the DSR-IV Controller or performing the datalogging process. Internal, System reset needed, contact your Thermo King Dealer. |
|
| H17 |
eMMC read error - An error during powering-up when reading configuration paramenters. Internal, System reset needed, contact your Thermo King Dealer. |
|
| H18 |
Flash Loading Failed - An error occurred while loading firmware to the DSR-IV Controller. Internal, System reset needed, contact your Thermo King Dealer. |
|
| H1A |
Non-Compatible SW - Indicates that one of the electronic components contain an incorrect or out-of-date Software version. Contact your Thermo King Dealer. |
|
Compressor Drive Module Alarms
| H21 |
Phase overcurrent- Shutdown alarm Contact your Thermo King Dealer. |
||
| H2A |
Overcurrent of DC/DC converter- Shutdown alarm Contact your Thermo King Dealer. |
||
| H22 |
Input overvoltage - Shutdown alarm Contact your Thermo King Dealer. |
||
| H23 |
Input undervoltage - Consider let the engine run to allow the alternator to charge the vehicle battery. Contact your Thermo King Dealer. |
||
| H24 |
Motor Endstage temperature too high - Shutdown alarm Contact your Thermo King Dealer. |
||
| H25 |
Motor controller communication error - Critical, Motor controller alarm Contact your Thermo King Dealer. |
||
| H26 |
Locked Rotor - Critical, Motor controller alarm Contact your Thermo King Dealer. |
||
| H27 |
Compressor start-up failure - Critical, Motor controller alarm Contact your Thermo King Dealer. |
||
| H28 |
Phase Loss - One of the phases carrying current to the Compressor Drive Module (CDM) is disconnected. Contact your Thermo King Dealer. |
||
| H40 |
CFLT activated - Repeating non-critical alarms or a threshold of Active Alarms is reached which forces the unit to shutdown for maintenance. Contact your Thermo King Dealer. |
||
Battery Management Alarms
| H50 to H5D |
Battery internal alarm (Thermal or Voltage problem) - Shutdown alarm Contact your Thermo King Dealer. |
||
| H5E |
Battery communications lost - Shutdown alarm Contact your Thermo King Dealer. |
||
| H5F |
Low Battery warning. - Please connect your unit to shore power to charge the TK Battery. If problem persists, Contact your Thermo King Dealer. |
||
| H60 to H63 |
Battery internal alarm (internal sensors) - Shutdown alarm Contact your Thermo King Dealer. |
||
| H6B, H6C |
Battery deeply discharged. - Please connect your unit to shore power to charge the TK Battery If problem persists, Contact your Thermo King Dealer. |
||
| H6D |
BMS communication lost. - Restart the E-200. If problem persists, Contact your Thermo King Dealer. |
||
| H70 to H77 |
SCM Charging Condition. - Restart the E-200. If problem persists, Contact your Thermo King Dealer. |
||
| H78, H79 |
Over Temperature in the Power Supply Unit (Main Unit) - Let the unit cool down, then restart the unit. If problem persists, Contact your Thermo King Dealer. |
||
| H7A. H7B |
Relay Malfunction - Shutdown alarm Contact your Thermo King Dealer. |
||
| H7C, H7D |
Batteries current imbalance warning (2 Battery Application ONLY) - Connect the unit to shore power to charge the TK battery. If problem persists, Contact your Thermo King Dealer. |
||
Color Code Definitions
| OK TO RUN | CHECK AS SPECIFIED | TAKE IMMEDIATE ACTION |
DSR Alarms
| Alarm | Description | ||
|---|---|---|---|
| P1E |
Temperature Probe 1 Fault - Shutdown alarm - Faulty or disconnected return air temperature sensor. Contact your Thermo King Dealer. |
||
| P2E |
Temperature Probe 2 Fault - Shutdown alarm - Remote Cargo Box Return Air Temperature Reading Error (open circuit or short-circuit) Contact your Thermo King Dealer. |
||
| bAt |
Low Battery Voltage - Shutdown alarm – Manual Start Contact your Thermo King Dealer. |
||
| HP |
High Pressure Cut-out- Shutdown alarm - The system has detected excessively high discharge pressure. If the problem persists when the unit is restarted, contact your Thermo King Dealer. |
||
| LP |
Low Pressure Cut-out- Shutdown alarm The system has detected excessively low suction pressure and has protected the compressor from an abnormal condition. Unit operation will resume automatically once the normal suction pressure is restored, and the alarm can be cleared (see Clearing Alarm Codes). Among other reasons, this could be due to:
Contact your Thermo King Dealer. |
||
| PSE |
High Pressure Sensor Failure- Shutdown alarm The high pressure sensor has become faulty or disconnected. Contact your Thermo King Dealer. |
||
| dr1 |
Door 1 Open- Shutdown alarm - Check if the door 1 open. if not, then the door switches are faulty, or improper door switch configuration. Contact your Thermo King Dealer. |
||
| dr2 |
Door 2 Open- Shutdown alarm - Check if the door 2 is open. if not, then the door switches are faulty, or improper door switch configuration. Contact your Thermo King Dealer. |
||
| SOF |
Software Failure- Shutdown alarm Contact your Thermo King Dealer. |
||
| bAL |
Shutdown alarm Contact your Thermo King Dealer. |
||
| tEP |
Thermal Protection Alarm If the problem persists when the unit is restarted, contect your Thermo King Dealer |
||
| tP4 |
Thermal Protection Alarm – Indicates that the power source thermal protection circuit has opened due to overheating of the power source or circuit failure. If the problem persists when the unit is restarted, contact your Thermo King Dealer |
||
| P3E |
Shutdown alarm Contact your Thermo King Dealer. |
||
| P4E |
Shutdown alarm Contact your Thermo King Dealer. |
||
Gateway Internal Alarms
| Alarm | Description | |
|---|---|---|
| Auto Start | ||
| H01 |
DSR3 Communication Lost - Communication lost to the other Electronic Control Module. Contact your Thermo King Dealer. |
|
| H02 |
HMI Communication Lost - Communication lost to the HMI. Contact your Thermo King Dealer. |
|
| H0A |
Low Power Mode Activation - Ignition key of the vehicle is disconnected, and the unit is not connected to the shore power. Operation of the unit may be inhibited but remains operational. Report Alarm at the end of the day. |
|
| H0B |
Sleep Mode Activation- While the unit OFF, the vehicle battery voltage dropped below a threshold. Normal operation of the controller will resume as soon as the power is restored. Report Alarm at the end of the day. |
|
| H0C |
Power Derating Shutdown - Low Voltage Shutdown alarm - your battery voltage has dropped below a defined level. The shutdown alarm is automatically cleared once the voltage rises over this limit once more. Give voltage to the system. |
|
| H0D |
Power Source Issue - The output voltage of the power source is lower than expected Contact your Thermo King Dealer. |
|
| H0E |
RTC Lost Contact your Thermo King Dealer. |
|
| H10 |
Internal Flash Erase Error - Internal, System reset needed Report Alarm at the end of the day. |
|
| H11 |
Internal Flash write Error - Internal, System reset needed Report Alarm at the end of the day. |
|
| H12 |
Default Parameters in Use - This will typically happen after a new firmware version has been loaded. If the problem persists when the unit is restarted, contact your Thermo King Dealer. |
|
| H15 |
eMMC Erase Error - An error occurred while loading parameters to the DSR-III Controller. Internal, System reset needed, contact your Thermo King Dealer. |
|
| H16 |
eMMC Write Error - An error occurred while loading parameters to the DSR-III Controller or performing the datalogging process. Internal, System reset needed, contact your Thermo King Dealer. |
|
| H17 |
eMMC Read Error - An error during powering-up when reading configuration paramenters. Internal, System reset needed, contact your Thermo King Dealer. |
|
| H18 |
Flash Loading Failed - An error occurred while loading firmware to the DSR-III Controller. Internal, System reset needed, contact your Thermo King Dealer. |
|
| H19 |
eMMC NearlyFull Contact your Thermo King Dealer. |
|
| H1A |
Non-Compatible SW - Indicates that one of the electronic components contain an incorrect or out-of-date Software version. Contact your Thermo King Dealer. |
|
| H1B |
Testing Software Contact your Thermo King Dealer. |
|
Parameters Alarms
| Alarm | Description | ||
|---|---|---|---|
| H60 |
ParEr0 - Shutdown alarm - Refrigerant type does not match between GC and Ecomp. Contact your Thermo King Dealer. |
||
| H61 |
ParEr1 - Shutdown alarm - Displacement does not match between GC and Ecomp. Contact your Thermo King Dealer. |
||
| H62 |
ParEr2 - Shutdown alarm - Voltage does not match between GC and Ecomp. Contact your Thermo King Dealer. |
||
| H63 |
ParEr3 - Shutdown alarm - Refrigerant type does not match between GC and DSR. Contact your Thermo King Dealer. |
||
Electric Compressor Alarms
| Alarm | Description | ||
|---|---|---|---|
| H80 |
Communication Error- CEN active but no communication for more than 2 seconds Contact your Thermo King Dealer. |
||
| H81 |
Input Over Voltage - Shutdown alarm Contact your Thermo King Dealer. |
||
| H82 |
Input Under Voltage Contact your Thermo King Dealer. |
||
| H83 |
Over Temperature- Shutdown alarm Contact your Thermo King Dealer. |
||
| H84 |
Over Current- Shutdown alarm Contact your Thermo King Dealer. |
||
| H85 |
Phase Loss - One of the phases carrying current to the Compressor. Contact your Thermo King Dealer. |
||
| H86 |
Low Frequency - Running under minimum frequency for longer than 30 seconds or minimum frequency not reached in 45 seconds during the start-up. Contact your Thermo King Dealer. |
||
| H87 |
Start Blocked - Motor temperature higher than 70°C. Prevents the start. Contact your Thermo King Dealer. |
||