Johnson Controls HVWHP072B32S - Page 95

SM-18006
3-75
TROUBLESHOOTING
PC4-No.2
+
+
+
+
++
+
+
+
+
+
+
ON
1
2
+
+
+
PCN550
PC4
VCC15
LED1
VDC-
GND1
VCC12
VCC05
PCN500
1 Vm (Red)
3 GND (Black)
4 Vcc (White)
5 Vs (Yellow)
6 PG (Blue)
Connector for Fan Motor
1st 2nd Decision Basis
Tester
Resistance
Value
Tester
Resistance
Value
Resistance values
of both 1st and 2nd
measurings are over 10
Red Black
W
Red Black
W
FG GND GND FG
Vsp GND GND Vsp
Vcc GND GND Vcc
Vdc GND GND Vdc
●WallMountType
Checking for Fan Motor
Remove fan motor connector and measure the resistance value between each of the pins (twice, one
measurementwith+/-leadsandtheotherwith-/+leads).Checkwhethertheresistancevalueisoveror
not according to the table shown below. When performing the second measuring, make sure to switch
leads(Red/Black).