Cooling Cycle Fault (Zone)

Critical system failure preventing cooling; unit shuts down to protect cargo.

Possible causes

Total compressor failure
Total refrigerant loss
Complete blockage in liquid line

Recommended actions

Perform nitrogen pressure test
Verify compressor coupling
Check all high-side components

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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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