Clearing Alarm Codes
Most alarm codes can be cleared conventionally from the Alarm Menu using the CLEAR soft key. See the Operating Instructions chapter for procedures. The operator should contact a supervisor or a Thermo King dealer about clearing alarms using the Guarded Access Menu. Refer to ( Table of Alarm Codes) for alarm corrective action.
Note Document all alarm faults and report them to the service
technician.
There are three levels of corrective action that can be taken when an alarm condition occurs.
OK to Run: An alarm condition exists but does not affect unit operation. Corrective action can occur at a later date.
Check As Specified: An alarm condition exists that could affect unit operation. Follow diections in the Corrective Action column on the following chart.
Take Immediate Action: An alarm condition exists that will damage the unit or load. Take immediate action to correct the problem.
Note The corrective actions listed in the Operating
Instructions chapter and in Table of Alarm Codes are suggestions
only. Always consult your company for final decisions.
Note Table of Alarm Codes shows all possible
alarm codes for all possible applications. Not all codes will be applicable
to each individual unit. Not all alarm codes are available with all
microprocessor controllers or all revisions of software.
Table of Alarm Codes
| COLOR CODE DEFINITIONS: | OK TO RUN | CHECK AS SPECIFIED | TAKE IMMEDIATE ACTION | ||
|---|---|---|---|---|---|
| Num | Description | Operator Action | |||
| 00 | No Alarms Exist | No action required. | |||
| 02 | Check Evaporator Coil Sensor | Manually monitor load temperature. Report alarm at end of day. | |||
| 03 | Check (Control) Return Air Sensor | Manually monitor load temperature. Report alarm at end of day. | |||
| 04 | Check (Control) Discharge Air Sensor | Manually monitor load temperature. Report alarm at end of day. | |||
| 05 | Check Ambient Temp Sensor | Report alarm at end of day. | |||
| 06 | Check Coolant Temp Sensor | Report alarm at end of day. | |||
| 07 | Check Engine RPM Sensor | Report alarm at end of day. | |||
| (09) | High Evaporator Temperature | Manually monitor load temperature. Report alarm at end of day. | |||
| (10) | High Discharge Pressure | If unit is shut down repair immediately. Otherwise, report alarm at end of day. | |||
| 11 | Unit Controlling on Alternate Sensor | Manually monitor load temperature. Report alarm at end of day. | |||
| 12 | Sensor or Digital Input Shutdown | The unit is no longer able to operate and has been shut down. Repair immediately. | |||
| 13 | Sensor Calibration Check | Manually monitor load temperature. Report alarm at end of day. | |||
| (17) | Engine Failed to Crank | If unit is shut down repair immediately. Otherwise, report alarm at end of day. | |||
| (18) | High Engine Coolant Temperature | If unit is shut down repair immediately. Otherwise, report alarm at end of day. | |||
| (19) | Low Engine Oil Pressure | If unit is shut down repair immediately. Otherwise, report alarm at end of day. | |||
| (20) | Engine Failed to Start | If unit is shut down repair immediately. Otherwise, report alarm at end of day. | |||
| (21) | Cooling Cycle Check | Manually monitor load temperature. Report alarm at end of day. | |||
| (22) | Heating Cycle Check | Manually monitor load temperature. Report alarm at end of day. | |||
| (23) | Cooling Cycle Fault | The unit is no longer able to operate and has been shut down. Repair immediately. | |||
| (24) | Heating Cycle Fault | The unit is no longer able to operate and has been shut down. Repair immediately. | |||
| 25 | Alternator/Battery Charger Check | If unit is shut down repair immediately. Otherwise, report alarm at end of day. | |||
| (26) | Check Refrigeration Capacity | Manually monitor load temperature. Report alarm at end of day. | |||
| 28 | Pretrip Abort | Report alarm at end of day. | |||
| 31 | Check Oil Pressure Switch | If unit is shut down repair immediately. Otherwise, report alarm at end of day. | |||
| 32 | Refrigeration Capacity Low | The unit is no longer able to operate and has been shut down. Repair immediately. | |||
| 33 | Check Engine RPM | Report alarm at end of day. | |||
| 35 | Check Run Relay Circuit | If unit is shut down repair immediately. Otherwise, report alarm at end of day. | |||
| (36) | Electric Motor Failed to Run | If unit is shut down repair immediately. Otherwise, report alarm at end of day. | |||
| 37 | Check Engine Coolant Level | Check engine coolant level. Do not remove the cap if the engine is hot. Report alarm at end of day. | |||
| 38 | Electric Phase Reversed | If unit is shut down repair immediately. Otherwise, report alarm at end of day. | |||
| 39 | Check Water Valve Circuit | If unit is shut down repair immediately. Otherwise, report alarm at end of day. | |||
| 40 | Check High Speed Circuit | If unit is shut down repair immediately. Otherwise, report alarm at end of day. | |||
| 41 | Check Engine Coolant Temperature | If unit is shut down repair immediately. Otherwise, report alarm at end of day. | |||
| 42 | Unit Forced to Low Speed | Report alarm at end of day. | |||
| 43 | Unit Forced to Low Speed Modulation | Report alarm at end of day. | |||
| 44 | Check Fuel System | Add fuel as necessary, otherwise report alarm at end of day. | |||
| 45 | Check Hot Gas or Hot Gas Bypass Circuit | If unit is shut down repair immediately. Otherwise, report alarm at end of day. | |||
| 46 | Check Air Flow | If unit is shut down repair immediately. Otherwise, report alarm at end of day. | |||
| 48 | Check Belts or Clutch | If unit is shut down repair immediately. Otherwise, report alarm at end of day. | |||
| 50 | Reset Clock | Report alarm at end of day. | |||
| 52 | Check Heat Circuit | If unit is shut down repair immediately. Otherwise, report alarm at end of day. | |||
| 54 | Test Mode Timeout | Service Test or Output Test timed out after 15 minutes. Report alarm at end of day. | |||
| 56 | Check Host Evap Fan Low Speed | If unit is shut down repair immediately. Otherwise, report alarm at end of day. | |||
| 57 | Check Host Evap Fan High Speed | If unit is shut down repair immediately. Otherwise, report alarm at end of day. | |||
| 61 | Low Battery Voltage | If unit is shut down repair immediately. Otherwise, report alarm at end of day. | |||
| 62 | Ammeter Out of Calibration | If unit is shut down repair immediately. Otherwise, report alarm at end of day. | |||
| (63) | Engine Stopped | If unit is shut down repair immediately. Otherwise, report alarm at end of day. | |||
| 64 | Pretrip Reminder | Report alarm at end of day. | |||
| 65 | Abnormal Temperature Differential | Report alarm at end of day. | |||
| 66 | Low Engine Oil Level | Check engine oil level. If unit is shut down repair immediately. Otherwise, report alarm at end of day. | |||
| 67 | Check Liquid Line Solenoid Circuit | If unit is shut down repair immediately. Otherwise, report alarm at end of day. | |||
| 68 | Internal Controller Fault Code | Report alarm at end of day. | |||
| 70 | Hourmeter Failure | Report alarm at end of day. | |||
| 74 | Controller Reset to Defaults | Report alarm at end of day. | |||
| 79 | Internal Data Logger Overflow | Report alarm at end of day. | |||
| 84 | Restart Null | Report alarm at end of day. | |||
| 85 | Forced Unit Operation | Report alarm at end of day. | |||
| 86 | Check Discharge Pressure Sensor | Report alarm at end of day. | |||
| 87 | Check Suction Pressure Sensor | Report alarm at end of day. | |||
| 89 | Check Electronic Throttling Valve Circuit | If unit is shut down repair immediately. Otherwise, report alarm at end of day. | |||
| 90 | Electric Overload | If unit is shut down repair immediately. Otherwise, report alarm at end of day. | |||
| 91 | Check Electric Ready Input | If unit is shut down repair immediately. Otherwise, report alarm at end of day. | |||
| 92 | Sensor Grades Not Set | Report alarm at end of day. | |||
| 96 | Low Fuel Level | Check engine fuel level and add fuel as required. | |||
| 98 | Check Fuel Level Sensor | Report alarm at end of day. | |||
| 108 | Door Open Time-out | Close doors. Report alarm at end of day. | |||
| 111 | Unit Not Configured Correctly | Report alarm at end of day. | |||
| 113 | Check Electric Heat Circuit | If unit is shut down repair immediately. Otherwise, report alarm at end of day. | |||
| 114 | Multiple Alarms - Can Not Run | If unit is shut down repair immediately. Otherwise, report alarm at end of day. | |||
| 117 | Auto Switch from Diesel to Electric | Report alarm at end of day. | |||
| 118 | Auto Switch from Electric to Diesel | Report alarm at end of day. | |||
| 120 | Check Alternator Excite Circuit | If unit is shut down repair immediately. Otherwise, report alarm at end of day. | |||
| 121 | Check PWM/Liquid Injection Circuit | If unit is shut down repair immediately. Otherwise, report alarm at end of day. | |||
| 122 | Check Diesel/Electric Circuit | If unit is shut down repair immediately. Otherwise, report alarm at end of day. | |||
| 127 | Setpoint Not Entered | Be sure setpoint is adjusted to required temperature. | |||
| 128 | Engine Run Time Maintenance Reminder #1 | Report alarm at end of day. | |||
| 129 | Engine Run Time Maintenance Reminder #2 | Report alarm at end of day. | |||
| 130 | Electric Run Time Maintenance Reminder #1 | Report alarm at end of day. | |||
| 131 | Electric Run Time Maintenance Reminder #2 | Report alarm at end of day. | |||
| 132 | Total Unit Run Time Maintenance Reminder #1 | Report alarm at end of day. | |||
| 133 | Total Unit Run Time Maintenance Reminder #2 | Report alarm at end of day. | |||
| 134 | Controller Power On Hours | Report alarm at end of day. | |||
| 141 | Auto-Switch Diesel to Electric Disabled | Report alarm at end of day. | |||
| 143 | Check Remote Zone Drain Hose Heater Output | If unit is shut down repair immediately. Otherwise, report alarm at end of day. | |||
| 144 | Lost Expansion Module CAN Communication | If unit is shut down repair immediately. Otherwise, report alarm at end of day. | |||
| 145 | Loss of Controller “On” 8XP Feedback Signal | If unit is shut down repair immediately. Otherwise, report alarm at end of day. | |||
| 146 | Software Version Mismatch | If unit is shut down repair immediately. Otherwise, report alarm at end of day. | |||
| 148 | Auto-Switch Electric to Diesel Disabled | Report alarm at end of day. | |||
| 150 | Out of Range Low (HMI) | Manually monitor load temperature. Report alarm at end of day. | |||
| 151 | Out of Range High (HMI) | Manually monitor load temperature. Report alarm at end of day. | |||
| 157 | OptiSet File Mismatch | Report alarm at end of day. | |||
| 158 | Primary Software Failed to Load | Report alarm at end of day. | |||
| 159 | Check Battery Condition | If unit is shut down repair immediately. Otherwise, report alarm at end of day. | |||
| 160 | Lost Radio Expansion Board (REB) CAN Communication | If unit is shut down repair immediately. Otherwise, report alarm at end of day. | |||
| 203 | Check Display Return Air Sensor | Manually monitor load temperature. Report alarm at end of day. | |||
| 204 | Check Display Discharge Air Sensor | Manually monitor load temperature. Report alarm at end of day. | |||
| 233 | REB Transitioning From Conservative to Full Null | Report alarm at end of day. | |||
| 234 | Check Relative Humidity Sensor | Report alarm at end of day. | |||
| 251 | REB Mis-configured | Report alarm at end of day. | |||
| 252 | Check Auto Fresh Air Exchange | Report alarm at end of day. | |||
| 508 | Speed Request Communications Error | Report alarm at end of day. | |||
| 509 | Engine Control Unit (ECU) Failed to Enable | If unit is shut down repair immediately. Otherwise, report alarm at end of day. | |||
| 510 | Engine Control Unit (ECU) Run Signal Failed | If unit is shut down repair immediately. Otherwise, report alarm at end of day. | |||
| 511 | Engine Wait to Start Time Delay Expired | Report alarm at end of day. | |||
| 517 | Water in Fuel | Report alarm at end of day. | |||
| 518 | Generator Ground Fault | If unit is shut down repair immediately. Otherwise, report alarm at end of day. | |||
| 519 | Check Battery Charger Input Power | If unit is shut down repair immediately. Otherwise, report alarm at end of day. | |||
| 520 | Check Battery Charger Output Power | If unit is shut down repair immediately. Otherwise, report alarm at end of day. | |||
| 521 | Battery Charger External / Environmental Faults | If unit is shut down repair immediately. Otherwise, report alarm at end of day. | |||
| 522 | Battery Temperature Sensor Alarm | If unit is shut down repair immediately. Otherwise, report alarm at end of day. | |||
| 523 | Battery Charger Indicated Conditions | If unit is shut down repair immediately. Otherwise, report alarm at end of day. | |||
| 524 | Generator Operational Limit, V out to Frequency Ratio | If unit is shut down repair immediately. Otherwise, report alarm at end of day. | |||
| 525 | Generator Frequency Range Fault | If unit is shut down repair immediately. Otherwise, report alarm at end of day. | |||
| 526 | Generator Operational Limit Output Current | If unit is shut down repair immediately. Otherwise, report alarm at end of day. | |||
| 528 | Controller Not Receiving Messages From Battery Charger | If unit is shut down repair immediately. Otherwise, report alarm at end of day. | |||
| 529 | Check Fuel Pump Circuit | If unit is shut down repair immediately. Otherwise, report alarm at end of day. | |||
| 538 | Engine J1939 CAN Datalink Degraded (Electronic Engine Only) | If unit is shut down repair immediately. Otherwise, report alarm at end of day. | |||
| 539 | Engine J1939 CAN Datalink Failed (Electronic Engine Only) | If unit is shut down repair immediately. Otherwise, report alarm at end of day. | |||
| 599 | Engine Service Tool Connected | Maintenance information only. Report alarm at end of the day. | |||
| 600 | Check Crankshaft Speed Sensor | Report alarm at end of day. | |||
| 601 | Check Camshaft Speed Sensor | Report alarm at end of day. | |||
| 602 | Check Intake Throttle Position Sensor | Report alarm at end of day. | |||
| 603 | Check Exhaust Pressure Sensor | Report alarm at end of day. | |||
| 604 | Check Coolant Temperature Sensor | Report alarm at end of day. | |||
| 605 | Check Fresh Air Temperature Sensor | Report alarm at end of day. | |||
| 607 | Check Fuel Temperature Sensor | Report alarm at end of day. | |||
| 608 | Check Rail Pressure Sensor | Report alarm at end of day. | |||
| 609 | Check Intake Pressure Sensor | Report alarm at end of day. | |||
| 610 | Check Atmospheric Pressure Sensor | Report alarm at end of day. | |||
| 611 | Check Glow Plug Circuit | Report alarm at end of day. | |||
| 612 | Check Intake Throttle Circuit | Report alarm at end of day. | |||
| 613 | Check Injector(s) | Report alarm at end of day. | |||
| 614 | Check High Pressure Fuel Pump | Report alarm at end of day. | |||
| 615 | Rail Pressure Fault | If unit is shut down repair immediately. Otherwise, report alarm at end of day. | |||
| 616 | Engine Overspeed | If unit is shut down repair immediately. Otherwise, report alarm at end of day. | |||
| 617 | Internal ECU Fault | If unit is shut down repair immediately. Otherwise, report alarm at end of day. | |||
| 618 | Check EGR | Report alarm at end of day. | |||
| 619 | ECU Main Relay Fault | Report alarm at end of day. | |||
| 623 | TRU CAN Message Timeout | Report alarm at end of day. | |||
| 624 | Check EGR Temperature Sensor | Report alarm at end of day. | |||
| 625 | Check Intake Air Temperature Sensor | Report alarm at end of day. | |||
| 626 | Check Exhaust Temperature Sensor | Report alarm at end of day. | |||
| 699 | Unknown ECU Fault | If unit is shut down repair immediately. Otherwise, report alarm at end of day. | |||