Alarm Codes
149
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 To
Run
Check
Shut
Down
00 No Alarms Exist None required X
2 Evaporator Coil Sensor
Manually monitor load temperature with independent
thermometer. Report alarm at end of day.
X
3 Control Return Air Sensor
Manually monitor load temperature with independent
thermometer. Report alarm at end of day.
X
4 Control Discharge Air Sensor
Manually monitor load temperature with independent
thermometer. Report alarm at end of day.
X
5 Ambient Air Sensor Report alarm at end of day. X
6 Coolant Temp Sensor Report alarm at end of day. X
7 Engine RPM Sensor Report alarm at end of day. X
8 Unit Running on Coil Sensor
Manually monitor load temperature with independent
thermometer. Report alarm at end of day.
X
Alarm Codes
149
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 To
Run
Check
Shut
Down
00 No Alarms Exist None required X
2 Evaporator Coil Sensor
Manually monitor load temperature with independent
thermometer. Report alarm at end of day.
X
3 Control Return Air Sensor
Manually monitor load temperature with independent
thermometer. Report alarm at end of day.
X
4 Control Discharge Air Sensor
Manually monitor load temperature with independent
thermometer. Report alarm at end of day.
X
5 Ambient Air Sensor Report alarm at end of day. X
6 Coolant Temp Sensor Report alarm at end of day. X
7 Engine RPM Sensor Report alarm at end of day. X
8 Unit Running on Coil Sensor
Manually monitor load temperature with independent
thermometer. Report alarm at end of day.
X
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