Low Compressor Discharge Pressure (Scroll Only)

Scroll compressor discharge pressure too low during operation.

Possible causes

Low refrigerant charge in the system
Worn or internally damaged scroll compressor
Failed discharge check valves
Extremely low ambient temperature

Recommended actions

Apply refrigerant charge as needed
Perform compressor efficiency test
Inspect bypass and check valves
Confirm condenser fans are not over-spinning

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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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