LG LMXS27676D, Service Manual

Page: 41 / 107

Condenser Fan Error (E CF)
1
2
Check the fan rotating.
Does fan rotate?
No
Yes
Go to 3
3
Check the Fan motor.
Rotate fan using hand.
It feel sticky?
Yes
Change the
Fan motor
Reset the unit and
Input Test1 Mode.
(Push the button 1 time)
Go to 4
Fan Motor
Fan Motor
TEST MODE 1 Voltage [V]
CON7
8
th
pin ~ 6
th
pin
0V<Voltage<5V
4
Check the Fan Motor voltage
Is Fan Motor voltage 12V?
Yes
Replace
Main PCB
No
TEST MODE 1 Voltage [V]
CON7
4
th
pin ~ 6
th
pin
12V
5
Check the Fan Motor voltage
Is Fan control signal voltage
between 0V and 5V?
No
Replace
Main PCB
No
7
Explain to customer
CON7
CON7
TEST MODE 1 Voltage [V]
CON7
2
nd
pin ~ 6
th
pin
0V<Voltage<5V
Check the Fan Motor voltage
Is Fan feed back voltage
between 0V and 5V?
No
Replace
Motor
No
CON7