Carrier PC211 Start-Up, Operation And Maintenance Instructions Manual page 293

Table 10J — Out-of-Range Sensor Failures
Primary Message Secondary Message
Leaving CHW Temperature Sensor Fault: Check leaving CHW
Sensor Fault
Entering CHW Temperature Sensor Fault: Check entering CHW
Sensor Fault
Condenser Pressure
Sensor Fault
Evaporator Pressure
Sensor Fault
Bearing Temperature
Sensor Fault
Motor Winding Temp
Sensor Fault
Discharge Temperature
Sensor Fault
Oil Sump Temperature
Sensor Fault
Oil Pressure Transducer
Sensor Fault
Alarm Message/Primary Cause
sensor.
sensor.
Sensor Fault: Check condenser
pressure transducer.
Sensor Fault: Check evaporator
pressure transducer.
Sensor Fault: Check bearing tem-
perature sensor.
Sensor Fault: Check motor temper-
ature sensor.
Sensor Fault: Check discharge tem-
perature sensor.
Sensor Fault: Check oil sump tem-
perature sensor.
Sensor Fault: Check oil pressure
transducer.
Additional Cause/
Remedy
See sensor test procedure
and check sensors for
proper operation and wir-
ing.