Carrier Aquazone 50PCH PCV 007 Installation, Start-Up And Service Instructions Manual page 20

UPM STATUS LED - BLINK CODES
HIGH PRESSURE FAULT
1
2 LOW PRESSURE FAULT
3 CONDENSER FREEZE CONDITION
4 CONDENSATE OVERFLOW FAULT
5 BROWN OUT FAULT
6 EVAPORATOR FREEZE CONDITION
Fig. 20 — PSC Motor, Three Phase/Single Stage, Better B or Complete C Control
BLK (HI)
BLU (MED)
RED (LOW)
50PC311000 Rev. 4