Check Belts or Clutch

A mechanical issue has been detected in the drive belts or the clutch.

Possible causes

Loose, worn, or broken belts
Slipping compressor clutch
Incorrect pulley alignment
Failed automatic tensioner

Recommended actions

Visually inspect belt condition and tension
Test clutch engagement
Verify pulleys rotate freely
Adjust or replace belts as necessary

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Other Thermo King codes

00No Alarms Exist 02Check Evaporator Coil Sensor (Zone)03Check (Control) Return Air Sensor (Zone)04Check (Control) Discharge Air Sensor (Zone)05Check Ambient Temp Sensor 06Check Coolant Temp Sensor

View all Thermo King codes

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