Quick Reference Table - Emerson Coresense Diagnostics Bulletin

Alert Code
Normal Run
Normal operation, no trip.
Solid Yellow
Code1 Long run time. Compressor is on running for more
than 18 hours. (Code1 is disabled in Heat Pump
Yellow Flash 1
mode.)
Code2 Compressor (pressure) trip. Compressor runs for
12 sec to 15 min followed by a compressor trip
Yellow Flash 2
condition lasting longer than 7 min.
Code3 Pressure switch cycling. Compressor runs for 12
sec to 15 min followed by a compressor trip lasting
Yellow Flash 3
between 35 sec to 7 min.
Code4 Locked rotor. Compressor trips within a compressor
run time of 12 sec and does not start within 35 sec.
Yellow Flash 4
Code5 Compressor (moderate run) trip. Compressor runs
for 15 min to 18 hrs followed by a compressor trip
Yellow Flash 5
lasting longer than 7 min.
Code9
The current to the PROT terminal is greater than 2A
Red Flash 9
Trip
Demand is present, but compressor is not running
Solid Red
© 2015 Emerson Climate Technologies
Table 1 - Quick Reference Table
Alert Condition
9
AE8-1379 R2
Lock
Lock Level
Indication
N/A
N/A
Red: Flash 2
4x consecutive
Yellow: Off
4x consecutive Red: Flash 3
or 10x total
Yellow: Off
Red: Flash 4
10x consecutive
Yellow: Off
4x consecutive Red: Flash 5
or 10x total
Yellow: Off
Red: Flash 9
Current >2A
for 40ms
Yellow: Off
N/A
N/A
N/A
N/A