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Alarm Codes
154
83
Low Engine Coolant Temperature
If unit is shutdown repair immediately. Otherwise, report
alarm at end of day.
X
84
Restart Null
Report alarm at end of day.
X
85
Forced Unit Operation
Report alarm at end of day.
X
86
Discharge Pressure Sensor
Report alarm at end of day.
X
87
Suction Pressure Sensor
Report alarm at end of day.
X
89
Check Electronic Throttling Valve
Circuit
If unit is shutdown repair immediately. Otherwise, report
alarm at end of day.
X
90
Electric Overload
If unit is shutdown, repair immediately. Otherwise, report
alarm at end of day.
X
91
Electric Ready Input
If unit is shutdown, repair immediately. Otherwise, report
alarm at end of day.
X
92
Sensor Grades Not Set
Report alarm at end of day.
X
Table of Alarm Codes
NOTE: Not all alarm codes are available with all microprocessor controllers or all revisions of software.
Code Description
Corrective Action
Level Of
Action
Ok
T
o
Run
Che
c
k
Shut
Down