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M-SV-001-EN Rev. G
Table 5-7 Compressor Status 2 Faults
Motor Fault
Description
Trigger
Method
Troubleshooting
Suction Pressure
Sensor Fault
RFT
• Sensor errors occur when the sensor is providing a reading that is outside the normal readable
temperature range and therefore must have an error in the reading or functional problem with the
sensor
• Verify the associated sensor and related connections
Discharge Pressure
Sensor Fault
RFT
• Sensor errors occur when the sensor is providing a reading that is outside the normal readable
temperature range and therefore must have an error in the reading or functional problem with the
sensor
• Verify the associated sensor and related connections
Suction
Temperature
Sensor Fault
RFT
• Sensor errors occur when the sensor is providing a reading that is outside the normal readable
temperature range and therefore must have an error in the reading or functional problem with the
sensor
• Verify the associated sensor and related connections
Discharge
Temperature
Sensor Fault
RFT
• Sensor errors occur when the sensor is providing a reading that is outside the normal readable
temperature range and therefore must have an error in the reading or functional problem with the
sensor
• Verify the associated sensor and related connections
Inverter
Temperature
Sensor Fault
RFT
• Sensor errors occur when the sensor is providing a reading that is outside the normal readable
temperature range and therefore must have an error in the reading or functional problem with the
sensor
• Verify the associated sensor and related connections
Cavity Temperature
Sensor Fault
RFT
• Sensor errors occur when the sensor is providing a reading that is outside the normal readable
temperature range and therefore must have an error in the reading or functional problem with the
sensor
• Verify the associated sensor and related connections
Soft Start
Temperature
Sensor Fault
RFT Sensor errors occur when the sensor is providing a reading that is outside the normal readable temperature range
and therefore must have an error in the reading or functional problem with the sensor.
Verify the associated sensor and related connections.
Invalid Bearing
Calibration Fault
INS • If a bearing calibration is not saved in the EEPROM, this fault will be triggered, a valid calibration is required prior
to the compressor accepting demand.
• Calibrate the compressor bearings using the Calibration Tool and save to EEPROM. Cycle power and verify the
calibration is retained in EEPROM.
Inverter Cooling
Control Fault
AFT See High Inverter Temperature Fault Troubleshooting
Motor Cooling
Control Fault
AFT See High Cavity Temperature Fault Troubleshooting
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