Overfill (Too Much Water)
What it means
This code appears on LG dishwashers with a digital display and means the amount of water in the dishwasher went above the allowed limit. The usual causes are heavy suds from an unsuitable detergent, a water inlet valve that does not close fully, or a fault in the level sensor or flow meter. The dishwasher usually tries to pump out the extra water, and there is a risk of leaking onto the floor; the same code can mean something else on other brands.
Models covered: LG dishwashers with a digital display; the code shows on the display.
Symptoms4
- FE shows and the drain pump runs to lower the water.
- Heavy suds inside the dishwasher or coming out around the door.
- Water on the floor in front of the unit at times.
- Water may enter the dishwasher while it is off.
Possible causes5
- Hand dish soap or a detergent not made for dishwashers, or too much detergent.
- Rinse aid leaking heavily from its dispenser and causing foam.
- Water inlet valve stuck open or not closing fully.
- A fault in the level sensor, float or flow meter.
- A main board fault that keeps the valve open.
How to diagnose5
- Turn off the supply tap, unplug the dishwasher and dry any water on the floor.
- Make sure you use a dishwasher detergent in the right amount, and that the rinse aid cap is closed.
- If there are heavy suds, wipe them out with a cloth, let the unit drain, then run a short rinse with no detergent.
- Watch whether water enters with the unit unplugged and the tap open; if so, the inlet valve is not closing.
- A technician unplugs the dishwasher before opening it and checks the inlet valve, level sensor or float and flow meter against the manufacturer specification, then the main board.
How to fix6
- Use the right detergent in the right amount and remove excess suds.
- Close the rinse aid dispenser properly, or repair its cap if it leaks.
- Replace the water inlet valve if it lets water through when closed.
- Repair or replace the level sensor, float or flow meter.
- Replace the main board only if it is proven to hold the valve open.
- Open the tap and run a full cycle under watch to confirm the code does not return.
Repair cost
In Saudi riyals; the highlighted part is the expected range for this fault.
The cost is nil or low when detergent or suds are the cause, moderate for a new inlet valve or level sensor, and higher if the main board is at fault.
Prices are rough estimates including the part and the technician’s fee, and vary with brand, model and part source.
Prices last updated: September 2026
Frequently asked questions
I used regular dish soap. Is that the cause?
Very likely. Hand dish soap makes thick foam that fills the dishwasher, confuses the level reading and can cause leaks. Wipe out the suds, run a rinse with no detergent, then use proper dishwasher detergent.
Can I keep using the dishwasher with this code?
No. Turn off the tap and unplug it until the cause is found, because a stuck valve can keep letting water in and leak onto the floor.
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This guide is for information only and does not replace an inspection by a qualified technician. If the fault involves brakes, steering, engine temperature, electrics or refrigerant, do not attempt the repair yourself.
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