Low Pressure Differential (Scroll only)

Low differential pressure detected across the compressor (Scroll only).

Possible causes

Leaking internal compressor valves
Low refrigerant charge
Open hot gas bypass valve
Pressure sensor failure

Recommended actions

Check high and low pressures simultaneously
Check for bubbles in the liquid sight glass
Inspect gas bypass solenoids
Perform system thermal performance test

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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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