F1021TD - 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.