Carrier TRANSICOLD PrimeLINE 69NT40-571-001, Руководство по эксплуатации и обслуживанию, Страница: 82 / 186

T-372 4–46
AL271 Return Recorder Sensor (RRS) Fault
Cause:
Return Recorder Sensor (RRS) is out of range.
Component Return Recorder Sensor (RRS)
Troubleshooting
Perform pre-trip P5.
Corrective Action If P5 passes, no further action is required. If P5 fails, replace the defective
sensor as determined by P5. See Temperature Sensor Service Section
7.28 .
AL272 USDA Temp 1 Out of Range
Cause: USDA Temp 1 Sensor is out of range.
Component
Sensor
Troubleshooting Validate sensor values by following the Sensor checkout procedure. See
Section 7.28 .
Corrective Action
If the sensor is bad, replace. If not, verify the harness wiring and
connections to the controller.
AL273 USDA Temp 2 Out of Range
Cause:
USDA Temp 2 Sensor is out of range.
Component Sensor
Troubleshooting
Validate sensor values by following the Sensor checkout procedure. See
Section 7.28
.
Corrective Action If the sensor is bad, replace. If not, verify the harness wiring and
connections to the controller.
AL274 USDA Temp 3 Out of Range
Cause: USDA Temp 3 Sensor is out of range.
Component
Sensor
Troubleshooting Validate sensor values by following the Sensor checkout procedure. See
Section 7.28 .
Corrective Action
If the sensor is bad, replace. If not, verify the harness wiring and
connections to the controller.
AL275 Cargo Probe 4 Out of Range
Cause:
Cargo Probe 4 Sensor is out of range.
Component Sensor
Troubleshooting
Validate sensor values by following the Sensor checkout procedure. See
Section 7.28
.
Corrective Action If the sensor is bad, replace. If not, verify the harness wiring and
connections to the controller.
AL286 RTC Battery Low
Cause: RTC Battery output low.
Component
RTC Battery
Troubleshooting Power cycle unit and monitor 24 hours to verify alarm goes inactive.