SP105 - LG Washing Machine Service Manual (repair manual). Page 19

8. TROUBLESHOOTING

8-1. BEFORE PERFORMING SERVICE

8-2. QC TEST MODE.

Be careful of electric shock when disconnecting parts while troubleshooting.

Non Coin Type 

The washer must be empty.

1. Push the MEDICAL 90 and NORMAL 60 button at the same time. 
2. Push the NORMAL 75 button 3 times.
3. Push the START button.

8-3. HOW TO CHECK THE WATER LEVEL FREQUENCY

8-4. HOW TO CHECK THE RPM

Press and hold the ADD SUPER WASH and PERMANENT PRESS buttons simultaneously.

Press the ADD SUPER WASH AND WHITES button simultaneously.

When you check the water level, the first digit is a 0 which means 2. 

A display indicating 041 is a water level frequency of 241 multiplied by 0.1 KHz , for an

actual frequency of 24.1 KHz. 

Under 200 rpm: The display indicates the rpm. (Under 200 rpm) 

Over 200 rpm: The display indicates the rpm. (x 10 rpm)

So, for example a display indicating 050 : rpm of 050 x 10 rpm = 500rpm 

The voltage of each terminal is 220V~ when the unit is plugged in.

Number of times the 

START button is pressed

y

a

l

p

s

i

D

t

n

i

o

P

 

k

c

e

h

C

None
1 time

2 times
3 times
4 times
5 times
6 times
7 times
8 times
9 times

11 times

13 times
14 times
15 times
16 times
17 times

Turns on all lamps and locks the door

Displayed EU XX and US XX alternately

(Version)

(Version)

rpm (40~50)
rpm (600)
rpm (1000)
Water level frequency (261~)
Water level frequency (261~)
Water level frequency (261~)
Water level frequency (261~)
rpm (40~50)

Water level frequency (261~)

Displayed EU XX and US XX alternately
Displayed EU XX and US XX alternately
rpm (1000)

Tumble Clockwise.
Low Speed Spin
High Speed Spin
Inlet valve for main water turns on.
Inlet valve for hot wash turns on.
Inlet valve for softener turns on.
Inlet valve for bleach turns on.
Tumble counter clockwise.

10 times

Displayed 0XX

Turn on the heater. 
Drain Pump turns on.

12 times

Displayed 0XX

Turn on the Circulation Pump. 

Turns on all lamps.
Button Checks.
High Speed Spin

PDA Signal Check

This function is not applied in this machine