Alarm Codes
154
41
Check Engine Coolant
Temperature
If unit is shutdown, repair immediately. Otherwise, report
alarm at end of day.
X
42 Unit Forced to Low Speed Report alarm at end of day. X
43
Unit Forced to Low Speed
Modulation
Report alarm at end of day. X
44 Out of Fuel Unit has been shut down. Refill fuel tank. X X
45
Hot Gas Bypass or Hot Gas
Bypass Circuit
If unit is shutdown repair immediately. Otherwise, report
alarm at end of day.
X
46 Check Air Flow
Cargo may be restricting air flow, check load. Report alarm
at end of day.
X
47 Remote Sensor Shutdown
The unit is no longer able to operate and has been shut
down. Repair immediately.
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 To
Run
Check
Shut
Down
Alarm Codes
154
41
Check Engine Coolant
Temperature
If unit is shutdown, repair immediately. Otherwise, report
alarm at end of day.
X
42 Unit Forced to Low Speed Report alarm at end of day. X
43
Unit Forced to Low Speed
Modulation
Report alarm at end of day. X
44 Out of Fuel Unit has been shut down. Refill fuel tank. X X
45
Hot Gas Bypass or Hot Gas
Bypass Circuit
If unit is shutdown repair immediately. Otherwise, report
alarm at end of day.
X
46 Check Air Flow
Cargo may be restricting air flow, check load. Report alarm
at end of day.
X
47 Remote Sensor Shutdown
The unit is no longer able to operate and has been shut
down. Repair immediately.
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 To
Run
Check
Shut
Down