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T-340
4–44
AL70
Secondary Sup
-
ply Sensor
(SRS)
Secondary Supply
Sensor (SRS) is out of
range.
Secondary Sup
-
ply Sensor (SRS)
Perform Pre-trip P5:
If P5 passes, no further
action is required.
If P5 fails, replace the
defective sensor as de
-
termined by P5, refer to
TEMPERATURE SEN
-
SOR Service
AL71
Secondary
Return Sensor
(RRS)
Secondary Return
Sensor (RRS) is out of
range.
Secondary Return
Sensor (RRS)
Perform Pre-trip P5:
If P5 passes, no further
action is required.
If P5 fails, replace the
defective sensor as de
-
termined by P5, refer to
TEMPERATURE SEN
-
SOR Service
AL72
Control Temp
Out of Range
After the unit goes in-
range for 30 minutes
then out of range for a
continuous 120 min
-
utes.
Refrigeration
System
Ensure unit is operating
correctly.
Power cycle unit.
Control Temperature is
in In-range.
Any Pre-trip mode, re
-
sets the timers.
NOTE
If the controller is configured for four probes without a DataCORDER, the DataCORDER alarms
AL70 and AL71 will be processed as Controller alarms AL70 and AL71. See
Table 4–6 Controller Alarm Indications
Alarm Code
Cause
Components
Troubleshooting
Corrective Actions