Thermo King Truck/Trailer Refrigeration Unit Error Alarm 76: Causes & Fixes
Controller EPROM Failure
Error Codes
Browse published troubleshooting notes by brand, product, and error code.
Thermo King Truck/Trailer Refrigeration Unit Error Alarm 77: Causes & Fixes
Controller EPROM Checksum Failure
Thermo King Truck/Trailer Refrigeration Unit Error Alarm 78: Causes & Fixes
Data Log EPROM Failure
Thermo King Truck/Trailer Refrigeration Unit Error Alarm 73: Causes & Fixes
Hourmeter 6 Exceeds Set Time Limit
Thermo King Truck/Trailer Refrigeration Unit Error Alarm 74: Causes & Fixes
Controller Reset to Defaults
Thermo King Truck/Trailer Refrigeration Unit Error Alarm 75: Causes & Fixes
Controller RAM Failure
Thermo King Truck/Trailer Refrigeration Unit Error Alarm 70: Causes & Fixes
Hourmeter Failure
Thermo King Truck/Trailer Refrigeration Unit Error Alarm 71: Causes & Fixes
Hourmeter 4 Exceeds Set Time Limit
Thermo King Truck/Trailer Refrigeration Unit Error Alarm 72: Causes & Fixes
Hourmeter 5 Exceeds Set Time Limit
Thermo King Truck/Trailer Refrigeration Unit Error Alarm 66: Causes & Fixes
Low Engine Oil Level
Thermo King Truck/Trailer Refrigeration Unit Error Alarm 67: Causes & Fixes
Check Liquid Line Solenoid Circuit (Zone)
Thermo King Truck/Trailer Refrigeration Unit Error Alarm 68: Causes & Fixes
Internal Controller Fault Code
Thermo King Truck/Trailer Refrigeration Unit Error Alarm 63: Causes & Fixes
Engine or Vapor Motor Stopped
Thermo King Truck/Trailer Refrigeration Unit Error Alarm 64: Causes & Fixes
Pretrip Reminder
Thermo King Truck/Trailer Refrigeration Unit Error Alarm 65: Causes & Fixes
Abnormal Temperature Differential (Zone)
Thermo King Truck/Trailer Refrigeration Unit Error Alarm 57: Causes & Fixes
Check Evaporator Fan High Speed (Zone)
Thermo King Truck/Trailer Refrigeration Unit Error Alarm 61: Causes & Fixes
Low Battery Voltage
Thermo King Truck/Trailer Refrigeration Unit Error Alarm 62: Causes & Fixes
Ammeter Out of Calibration
Thermo King Truck/Trailer Refrigeration Unit Error Alarm 54: Causes & Fixes
Test Mode Timeout
Thermo King Truck/Trailer Refrigeration Unit Error Alarm 55: Causes & Fixes
Check Engine Speeds
Thermo King Truck/Trailer Refrigeration Unit Error Alarm 56: Causes & Fixes
Check Evaporator Fan Low Speed (Zone)
Thermo King Truck/Trailer Refrigeration Unit Error Alarm 51: Causes & Fixes
Check Shutdown Circuit
Thermo King Truck/Trailer Refrigeration Unit Error Alarm 52: Causes & Fixes
Check Heat Circuit (Zone)
Thermo King Truck/Trailer Refrigeration Unit Error Alarm 53: Causes & Fixes
Check Economizer Valve Circuit