LG LFXS30796 Series - Page 53

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Condenser Fan Error (Er CF)
1
2
Check the f an rotating.
Does f an rotate?
No
Yes
Go to 3
3
Check the Fan motor.
Rotate f an 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]
CON5
1pin & 4
th
pin
Not 0V, 5V
Check the Fan Motor voltage
Is Fan Motor voltage 11.4~12.6 V?
Yes
Replace
Main PCB
No
TEST MODE 1 Voltage [V]
CON7
4
h
pin & 6
th
pin
11.4~12.6V
Check the Fan Motor voltage
Is Fan PWM voltage 0V, 5V?
No
Change the
motor
Yes
7
Explain to customer
TEST MODE 1 Voltage [V]
CON7
2
th
pin & 6
th
pin
Not 0V, 5V
Check the Fan Motor voltage
Is Fan Feed Back voltage 0V, 5V?
No
Yes
4
6
5
Replace
Main PCB