Refrigeration Capacity Low (Zone)

The unit or zone is not reaching the expected cooling capacity and has been stopped for safety.

Possible causes

Refrigerant leak
Low compressor efficiency or internal damage
Expansion valve restriction
Evaporator or condenser coil failure

Recommended actions

Check refrigerant levels in the sight glass
Check suction and discharge pressures
Review coil cleanliness
Inspect solenoid valve operation

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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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