LG F14A8TDSA Series Service Manual page 26

Overflow Error (FE)
Power off for 10sec. Then power on.
Is the water level over reference line and is the water level frequency under 21.3kHz?
NO
Is water continuously
coming into the drawer?
YES
Replace the
Inlet Valve
NO
Replace the
Main PCB.
assembly.
* Water level frequency
- Touch and Hold
simultaneously.
Drain out the water and then
check the
Air Chamber
If FE is displayed again,
then replace the
If FE is displayed again,
then replace the
29
'Pre Wash' & 'Temp.'
YES
and the (clogged).
Tube
Pressure Switch.
Main PCB.