High Pressure Sensor Fault (DSR)

Fault detected in the high (discharge) pressure transducer circuit.

Possible causes

Failed pressure transducer
Open or short in sensor wiring
Loose connector
Controller input fault

Recommended actions

Inspect sensor wiring and connector
Measure transducer signal
Replace sensor if defective
Verify controller input

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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

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