LG LD1455WLFCS2 - Troubleshooting: Nozzle (Vario) Error; Nozzle (Vario) Error Diagnosis Flowchart

Nozzle(Vario) Error
Condition.
The position of vario cam is not properly.
Is displayed?
Yes
Reassemble
vario S/W.
Does the vario S/W
assembled properly?
Yes
No
Replace the
vario motor.
Is the vario motor operated
properly?
(range is 12~15Ω)
No
Reconnect or
repair the
connector.
Check the connectors
below.
Is the connector
disconnec
ted
or
(BL4 : vario motor,
NA8 : Vario S/W sensing)
disassembl
ed?
Yes
No
Does the PCB assembly working
properly?
When Door is closed,
check the voltage between
BL4 pin1 and BL4 pin4.
-. Vario motor stop working
: 230VAC
-. Vario motor stop stop : 0~1V
Yes
Replace the
main PCB
assembly.
No
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