Quick summary
If water leaves the drum while the washer fills, the drain-hose end is likely too low or pushed too deep into the drain, causing siphoning. Correct the installation first.
When the drain hose end sits too low or is sealed deep in the standpipe, siphoning can occur: water flows out by gravity, the washer keeps refilling and your water bill rises.
Unplug the appliance, close the water tap if there's a leak, and never open covers that need tools or expose wiring or circuits.
Possible causes
Hose end too low
Below the drum water level, water drains by itself.
Hose sealed inside the drain
A tight seal with no air gap causes siphoning.
Pump running continuously
Rare—caused by a board or sensor fault.
Inaccurate level sensor
Can make the washer repeat filling and draining.
Safe checks you can do
- Check the installation guide for the recommended drain-hose height.
- Don't push the hose deep into the standpipe; leave an air gap.
- Use the supplied hose guide (elbow) to keep its shape.
- Run a program and watch: does water stop escaping after correction?
When to stop checking immediately
- If the pump keeps running even after the program stops.
Related components
- Inlet & drain hoses
- Drain pump
- Sensors
When do you need a technician?
If the problem continues after fixing the installation, the technician checks the pump, board and level sensor.
Related error codes
FAQ
How do I know it's siphoning?
If water flows into the drain during filling without the pump running, it's probably siphoning.
Does siphoning harm the washer?
It raises water use, lengthens cycles and can weaken washing. It's usually fixed by adjusting installation.
Related guides
LG Washer Keeps Filling: The FE Code and the Water-Level Sensor
LG washer won't stop filling, overfills or shows FE? Inlet valve and pressure sensor causes—and how it differs from siphoning.
LG Washer Not Draining: Causes, the OE Code and Safe Checks
LG washing machine not draining or showing OE? Learn how a blocked pump filter, kinked hose or failing drain pump causes it, plus safe checks before calling a technician.
LG Wash Cycle Taking Longer Than Usual: Why Does Time Increase?
Why your LG washer cycle runs long or the timer stalls: rebalancing, suds, low water pressure, heating and smart programs that adjust time.
Low Water Pressure From Rooftop Tanks and Its Effect on LG Washers and Dishwashers
Why LG washers and dishwashers fill slowly in many Jordanian homes: how rooftop tanks affect pressure and the IE code, plus practical fixes.