WD-10COFD - LG Washing Machine Service Manual (repair manual). Page 19

8

. TROUBLESHOOTING

8-1. BEFORE PERFORMING SERVICE

■ Be careful of electric shock when disconnecting parts while troubleshooting.
■ The voltage of each terminal is 110V~ when the unit is plugged in.

8-2. QC TEST MODE.

The washer must be empty.

■ Card Type

1. Insert Service Card

2.              Display

3. Press the Start button repeatedly to cycle through the test modes.

■ Coin Type

1. Open the Service Door

2.               Display

3. Press the Start button repeatedly to cycle through the test modes.

8-3. HOW TO CHECK THE WATER LEVEL FREQUENCY

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

8-4. HOW TO CHECK THE RPM

■ Press the ADD SUPER WASH AND WHITES button simultaneously.

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 

Number of times the

START button is pressed

Check Point

None

1time

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

10 times
11 times
12 times
13 times
14 times
15 times
16 times

Turns on all lamps and locks the door

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.
Drain Pump turns on
Circulation Pump turns on
Turns on all lamps.
Button Checks.
High Speed Spin

Displayed  1F81 and TA XX alternately. - XX
(Version)
rpm (40~50)
rpm (600)
rpm (1000)
Water level frequency (262~)
Water level frequency (262~)
Water level frequency (262~)
Water level frequency (262~)
rpm (40~50)
Water level frequency (262~)
Water level frequency (262~)
Displayed  1F81 and TA XX alternately.
Displayed  1F81 and TA XX alternately.
rpm (1000)

Display