High Discharge Pressure (DSR)

Discharge pressure exceeded safe operating limit and shut down the unit.

Possible causes

Dirty or blocked condenser coil
Failed condenser fan
Overcharge of refrigerant
Non-condensables in the system

Recommended actions

Clean condenser coil
Verify condenser fan operation
Check refrigerant charge
Recover and recharge if contaminated

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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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