Thermo King Truck/Trailer Refrigeration Unit Error Alarm 500: Causes & Fixes
Check Host Evaporator Blower Low Speed
Error Codes
Browse published troubleshooting notes by brand, product, and error code.
Thermo King Truck/Trailer Refrigeration Unit Error Alarm 501: Causes & Fixes
Check Host Evaporator Blower High Speed
Thermo King Truck/Trailer Refrigeration Unit Error Alarm 505: Causes & Fixes
Check Roadside Condenser Fan Motor Speed Circuit
Thermo King Truck/Trailer Refrigeration Unit Error Alarm 252: Causes & Fixes
Check Auto Fresh Air Exchange Circuit
Thermo King Truck/Trailer Refrigeration Unit Error Alarm 253: Causes & Fixes
REB On Back Up Battery, Alarms Disabled
Thermo King Truck/Trailer Refrigeration Unit Error Alarm 254: Causes & Fixes
Check Auxiliary Coolant Temp Sensor
Thermo King Truck/Trailer Refrigeration Unit Error Alarm 235: Causes & Fixes
High Engine Coolant Temperature Check
Thermo King Truck/Trailer Refrigeration Unit Error Alarm 250: Causes & Fixes
DAS Clock Time Reset (DAS)
Thermo King Truck/Trailer Refrigeration Unit Error Alarm 251: Causes & Fixes
Check Radio Expansion Board Configuration
Thermo King Truck/Trailer Refrigeration Unit Error Alarm 216: Causes & Fixes
Check DAS Digital Inputs (DAS)
Thermo King Truck/Trailer Refrigeration Unit Error Alarm 233: Causes & Fixes
REB Switching Off, Conservative to Full Null
Thermo King Truck/Trailer Refrigeration Unit Error Alarm 234: Causes & Fixes
Check Relative Humidity Sensor Circuit
Thermo King Truck/Trailer Refrigeration Unit Error Alarm 188: Causes & Fixes
Log DAS Microprocessor Fault (DAS)
Thermo King Truck/Trailer Refrigeration Unit Error Alarm 203: Causes & Fixes
Check Display Return Air Sensor (Zone)
Thermo King Truck/Trailer Refrigeration Unit Error Alarm 204: Causes & Fixes
Check Display Discharge Air Sensor (Zone)
Thermo King Truck/Trailer Refrigeration Unit Error Alarm 177: Causes & Fixes
Check CO2 Tank Pressure Sensor (CR)
Thermo King Truck/Trailer Refrigeration Unit Error Alarm 178: Causes & Fixes
Low CO2 Fuel Level (CR)
Thermo King Truck/Trailer Refrigeration Unit Error Alarm 180: Causes & Fixes
TriPac Compressor Alarm
Thermo King Truck/Trailer Refrigeration Unit Error Alarm 163: Causes & Fixes
Emission Control Failure
Thermo King Truck/Trailer Refrigeration Unit Error Alarm 175: Causes & Fixes
Check Electronic Expansion Valve (CR)
Thermo King Truck/Trailer Refrigeration Unit Error Alarm 176: Causes & Fixes
Check Evaporator Pressure Sensor (CR)
Thermo King Truck/Trailer Refrigeration Unit Error Alarm 159: Causes & Fixes
Check Battery Condition
Thermo King Truck/Trailer Refrigeration Unit Error Alarm 160: Causes & Fixes
Lost CAN Communications to Radio Expansion Board
Thermo King Truck/Trailer Refrigeration Unit Error Alarm 161: Causes & Fixes
Log DAS Real Time Clock Invalid (DAS)