LG W3S1 Series, Service Manual

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7. TROUBLESHOOTING
7-1. Safety Caution
7-2. Error Mode Summary
■
There can be live AC and DC voltage on terminals on the main board, even when the machine is turned off. Be
cautious to avoid electric shock when disconnecting parts while troubleshooting.
(Wear Electro Static Discharge gloves when working.)
■
After cutting off the power when changing the PWB assembly, disconnecting, or reassembling.
■
Be careful static when handling the PWB assembly, and use Electro Static Discharge plastic pack when shipping or
storing it.
■
If you press the START/PAUSE button when an error is displayed, any error except will disappear and the
machine will go into the pause status.
■
In case of if the error is not resolved within 20 seconds, or the in case of other errors,
if the error is not resolved within 4 minutes, power will be turned off automatically and the error code will blink. But in
the case of , power will not be turned off.
■
WASHER
ERROR SYMPTOM CAUSE
1
WATER INLET ERROR
•
Correct water level (24.6kHz) is not reached within 8
minutes after water is supplied or it does not reach the
preset water level within 20 minutes.
2
UNBALANCE ERROR
•
The load is too small.
•
The appliance is tilted.
•
Laundry is gathered to one side.
•
Non-distributable things are put into the drum.
3
DRAIN ERROR
•
Not fully drained within 10 minutes.
4
OVERFLOW ERROR
•
Water is overflowing.
(water level frequency is over 21.3kHz).
※
If is displayed, the drain pump will operate to drain the
water automatically.
5
PRESSURE SENSOR
ERROR
•
The PRESSURE SENSOR ASSEMBLY is out of order.
•
When water level frequency is consistently below 10 kHz
or over 30 kHz.
6
DOOR OPEN ERROR
•
Door not all the way closed.
•
Loose electrical connections at door switch and PWB
Assembly.
•
The Door SWITCH ASSEMBLY is out of order.
7
HEATING ERROR
•
The THERMISTOR is out of order.