LG LRMVS3006 Series Service Manual page 54

Condenser Fan Error (Er CF)
Reset the unit and
1
Input Test1 Mode.
(Push the button 1 time)
2
Check the f an rotating.
Does f an rotate?
Fan Motor
Yes
Go to 4
3
Check the Fan motor.
Rotate f an using hand.
It f eel sticky?
Fan Motor
4
Check the Fan Motor voltage
Is Fan Motor voltage 11.4~12.6 V?
TEST MODE 1
CON3
12th pin ~ 9th pin
No Go to 3
5
Check the Fan Motor voltage
Is Fan Feed Back voltage 0V, 5V?
TEST MODE 1
CON3
10th pin ~ 9th pin
6
Change the
Check the Fan Motor voltage
Yes
Fan motor
Is Fan PWM voltage 0V, 5V?
TEST MODE 1
CON3
11th pin ~ 9th pin
7
Explain to customer
-52-
Replace
No
Main PCB
Voltage [V]
11.4~12.6V
Yes
Change the
Yes
motor
Voltage [V]
Not 0V, 5V
No
Replace
Yes
Main PCB
Voltage [V]
Not 0V, 5V
No
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