Carrier Aquazone 50PSH Installation, Start-Up And Service Instructions Manual page 22

UPM STATUS LED - BLINK CODES
1 HIGH PRESSURE FAULT
2 LOW PRESSURE FAULT
3 CONDENSER FREEZE CONDITION
4 CONDENSATE OVERFLOW FAULT
5 BROWN OUT FAULT
6 EVAPORATOR FREEZE CONDITION
Fig. 20 — Constant Airflow Motor, Single Phase/Single Stage, Deluxe D
TO ECM MOTOR
CFM ADJUST
CFM
A NORM
B (+)
C (-)
H
D TEST
HGRH
YES NO
THERMOSTAT
R C G O Y1 Y2 W1 W2 H C