LG LTCS20020 Series Service Manual page 43

9) Freezer BLDC FAN Motor Error
No
1 Push the TEST Mode Check the
loose connection
Input Test 1 Mode.
(push the button 1 times)
2 Open the freezer door and Check the Air
flow.
(While an error code is displayed, the fan
is not working)
Check the Fan motor.
3
Check the FAN Motor Voltage in wires
4
Brown to Blue.
Check the FAN Motor Feedback Voltage
5
in wires Blue to Gray.
COLD
Checking flow
<CON5>
<CON5>
COLDEST
Result & SVC Action
Status
airflow
No airflow
Rotate fan using your hand
It feel stuck or locked up, change the
motor.
Status
8~15 Vdc
Below 1V or 16V
Status
1~4 Vdc
Other
43
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SVC Action
Go to the 4
Go to the 3
SVC Action
Normal
Change the PCB
SVC Action
Normal
Change the PCB