Carrier Ultra Operator's Manual page 26

The following table has columns for Code and English displays.
English is the default setting. Change Functional Parameter to
Code to see Code display format.
CODE ENGLISH
AL0 ENG OIL
AL1 ENG HOT
AL2 HI PRESS
AL3 STARTFAIL
AL4 LOW BATT
AL5 HI BATT
AL6 DEFR FAIL
AL7 ALT AUX
AL8 STARTER
AL9 RA SENSOR
AL10 SA SENSOR Supply Air Sensor
WT SENSOR Coolant Temperature
AL11
AL12 HIGH CDT
CD SENSOR Compressor Discharge
AL13
AL14 SBY MOTOR Standby Motor Overload
AL15 FUSE BAD
AL16 SYSTEM CK
AL17 DISPLAY
AL18 SERVICE 1
AL19 SERVICE 2
AL20 OUT RANGE
= FAULT LIGHT ON
Display
ALARM DESCRIPTION
Low Oil Pressure
High Coolant
Temperature
High Pressure
Auto Start Failure
Low Battery Voltage
High Battery Voltage
Defrost Override
Alternator Not Charging
Starter Motor
Return Air Sensor
Sensor
High Discharge
Temperature
Temperature Sensor
(NDM Only)
Fuse Blown Or Dirty
Battery Cables
Check Refrigeration
System
Display
Maintenance Hour Meter 1
Maintenance Hour Meter 2
Out-of-range
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