F1220ND5 - LG Washing Machine Service Manual (repair manual). Page 17

7-4. ERROR DISPLAY

If you press the [Start/Pause] button when an error in displayed, any error except S/W ERROR will
disappear and the machine will change into pause status.
In case of        ,        ,        , if the error is not resolved within 15 sec. In case of other errors, if the
error is not resolved within 4 min. Power will be turned off automatically and the error only will be
blinked. But in the case of       , power will not be turned off.

WATER INLET

ERROR

Water has not reached to the pre-set level within 4 min.
since inlet valve operated, or water has not reached to
the normal level within 25 min.

1

IMBALANCE 

ERROR

2

DRAIN ERROR

3

OVERFLOW 

ERROR

4

The appliance is tilted.

Laundry is gathered to one side.

Non distributable things are put into the drum.

Water has not drained enough within 8 min.

Water is automatically being pumped out because too
much water is in the tub.

SENSOR PRESSURE

S/W ERROR

5

The sensor pressure switch is out of order.

DOOR OPEN 

ERROR

6

The [Start/Pause] button is pressed with the door open.

The door switch is out of order.

HEATING 

ERROR

7

The thermistor is out of order.

POWER

FAILURE

10

The washer experienced a power failure.

CURRENT

ERROR

8

PWB ASSEMBLY (Main) is out of order

☞ Replace the PWB assembly (Main)
Winding in the MOTOR is short-circuited.
☞ Replace the MOTOR

LOCK 

ERROR

9

The Connector (3-pin, male, white) in the wire harness
is not connected to the Connector (3-pin, female, white)
of MOTOR.

☞ Reconnect or repair the connector
The electric contact between the connectors [3-pin,
male, white in the wire harness and 6-pin, female, white
in the PWB ASSEMBLY (Main]) is bad or unstable.
☞ Reconnect or repair the contact in the connector
The wire harness between the MOTOR and PWB
ASSEMBLY (Main) is cut (open circuited).
The hall sensor is out of order/defective.