Freezer Bldc Fan Motor Error - LG LTCS24223B /04 Service Manual

10) Freezer BLDC FAN Motor Error

Main
PCB
CON5
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)
3 C h e c k h t e
Check the FAN Motor Voltage in wires
4
Gray to White.
Check the FAN Motor Feedback Voltage
5
in wires Gray to Purple.
COLD
WH
4
GY
5
PR
6
Checking flow
F a n m o o t . r
<CON5>
<CON5>
COLDEST
BK
5 1
RD
4 2
PR
3 3
Result & SVC Action
Status
airflow
No airflow
R o a t e t a f n u s
It feel stuck or locked up, change the
motor.
Status
8~15 Vdc
Below 1V or 16V
Status
1~4 Vdc
Other
- 52 -
Wiring diagram
F-FAN
SVC Action
Go to the 4
Go to the 3
n i g y o r u h a n . d
SVC Action
Normal
Change the PCB
SVC Action
Normal
Change the PCB