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Housing
Main PWB
SB
CON4
7
8
9
1
2
3
BO
GN
C-FAN
1
2
3
BK
RD
PR
Wiring diagram
Is Er-CF displayed?
Yes
Yes
Yes
Yes
No
No
Yes
No
No
Is the connection loose?
Reconnect
Is the feedback voltage
between pin8and pin9 of
CON4 like as below?
(from motor to main board)
Pin9 GN
Pin8 BO
Replace
Main PCB
Replace
Main PCB
Pin7 SB Pin8 BO
Condenser Fan Voltages
Reset and
Enter the TEST 1 MODE
Is the output voltage between
pin7 and pin8 of
CON4 like as below?
Explain to the customer!
Check fan motor
(Connector,
Locked,mouse)
Is the condenser fan
rotate?
Condenser Fan Error
12 ~ 16 V
pin7 to pin8
RessultTest Point
Feedback Voltages
1 ~ 4 V
pin8 to pin9
RessultTest Point