DOWNLOAD LG F1236RDSG Service Manual ↓ Size: 5.35 MB | Pages: 44 in PDF or view online for FREE

8-2.FAULT DIAGNOSIS AND TROUBLE SHOOTING

1. Be careful of electric shock or disconnecting the parts while trouble shooting.

2. First of all, check the connection of each part terminal with wiring diagram.

3. If you replace the MAIN PWB ASSEMBLY, Put in the connectors correctly.

Check the fuse?

Replace MAIN PWB
ASSEMBLY

Replace the FILTER
ASSEMBLY(CIRC)

Reconnect the PWB
ASSEMBLY

Reconnect the PWB
ASSEMBLY

When measuring the voltage of the outlet, 

is the voltage 110 V a.c?

Is the LED(1) on?

Is the voltage between the 2 FILTER ASSEMBLY
connectors 110 V a.c?

Is connector(2)  disconnected or

disassembled?

Is wire of the PWB ASSEMBLY disconnected?

Replace PWB ASSEMBLY

CAUTION

Is water supply shut-off?

Is the tap opened?

When you press both Rinse button and Temp.
button simultaneously, is the water level frequency
below 240?

Is the inlet valve filter clogged with impurity?

Is resistance between each terminal of INLET
VALVE ASSEMBLY is 2~8

kΩ?

Check the voltage of the inlet valve connector 

110 V a.c 

(Refer to 7-2 QC TEST MODE)

Is water supplied?

Are replaceptacles correctly connected to the
terminals of the INLET VALVE ASSEMBLY?

Is detergent put in the correct compartment of
the drawer?

Is the detergent hardened?

Open the tap.

Check the AIR CHAMBER
and the tube clogged 
with impurity. 

Clean the filter.

Replace the INLET VALVE

ASSEMBLY.

Check electrical
connection.
Replace the MAIN PWB
ASSEMBLY

Refer to 

NO WATER SUPPLY

Check the wiring on the

dispenser.

Put the detergent in the

correct position 

: Detergent 

Clean the drawer.

Fix the bolt tightly.

Replace the STATOR
ASSEMBLY or ROTOR
ASSEMBLY.

Refer to

NO WATER SUPPLY

Check the wiring on the 
dispenser.

Put it in the correct
compartment.

Clean the cap and
drawer.

Is the motor bolt loosened?

Is there friction noise from the motor?

Is water supplied?

Are receptacles correctly connected to the terminals
of the INLET VALVE ASSEMBLY?

Is softener put in the correct compartment of the

drawer?

Is the softener cap clogged?

Replace the

S.PRESSURE SWITCH

ASSEMBLY

Replace the MAIN PWB
ASSEMBLY

Repair the DRAIN HOSE
ASSEMBLY.

Remove foreign material.

Reconnect or repair the
connector

Repair the DRAIN PUMP
ASSEMBLY.

Repair the MAIN PWB
ASSEMBLY.

When pressing RINSE and TEMP. at the same
time after draining, is  the water level frequency
255?  
When pressing RINSE and TEMP. buttons at the
same time while washing, is the water level
frequency between 230 - 243 ?

After completely drained and turn 
off water, the washing machine is 
operated under the [Sanirary] condition.
Check the voatage between two pins is the 
Voltage 0 V AC?

Is the drain hose twisted or frozen?

Is the impeller of the drain pump clogged?

Is the connector disconnected, disassembled?

Is the coil of the drain pump cut-off?

(resistance of coil is 80~150 )

When checking voltage between connectors

( ,  )on spinning, is the voltage 110 V a.c  

as the figure?