Washer overfills or keeps filling

8 error codes across 6 washer brands mean this. The fastest route is your own code, so start there.

Does the machine keep filling, or is there more water in it than there should be?

If the machine shows a code, find your brand below. 3 of these codes have a full page with the free checks in order; the rest open the brand table at their row.

Samsung

OCSamsung washer error OC means the washer has overfilled. If it keeps filling with the power off, the inlet valve is not closing; if it is not actually overfilled, the water level sensor is misreading. Older machines show this as OE.High

Whirlpool

F8E3F8E3 is an overflow condition: there is too much water or too much foam in the washer.High
F09F09 on a Duet is an overflow condition — the pressure switch stayed closed too long, meaning the tub holds more water than it should.High
FLFL on a Calypso is a flood condition: the machine detected an overfill or an excessive amount of water in the tub.High

GE

OEOE on a GE WSL washer is a water overflow error — the tub is taking on more water than it should.High

KitchenAid

F09F09 is an overflow condition: the pressure switch stayed closed too long, meaning more water in the tub than there should be.High

LG

FEFE means the washer has overfilled — a stuck inlet valve or a failed pressure sensor. Unplug the machine to stop it filling.High

Maytag

F8E3F8E3 is an overflow condition: too much water in the washer, or a control that cannot read the level.High

No code shown?

Nothing yet, and that is a finding rather than a gap. All 1 checks on file for this symptom have been compared, and none is given by two independent publishers for two different manufacturers’ machines — so every one of them belongs to the code page that cites it rather than here. Start with the code above closest to your machine.

Before you check anything

Disconnect the power first. Unplug the machine at the socket, or switch off its circuit at the consumer unit if it is hard-wired. Do this before opening any panel, reaching into a pump filter, or moving the appliance.
Turn off the water before disconnecting a hose, and have a towel and a shallow tray ready — a drain hose holds water even when the drum looks empty.
Gas, mains wiring and sealed refrigeration are for a qualified professional — in many countries that is a legal requirement, not advice. If you smell gas, do not touch any switch: leave, and call your gas emergency number from outside.
Stop if you smell burning, see scorched wiring, or find water near an electrical connection. None of those is a code to look up.

The checks on this page are the manufacturer’s own, rewritten and sourced, and they are reference information rather than a repair instruction for your particular machine. Model, age and installation all change what is safe to do. You are the one standing in front of it — if a step looks wrong for the machine you have, trust that and call a technician.