Carrier Aquazone 50PCH PCV 007 Installation, Start-Up And Service Instructions Manual page 17

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. 17 — Constant Airflow Motor, Single Phase/Single Stage, Complete C, Better B Control
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