Overfill Detected

Home Appliance Error Codes Samsung Dishwashers

Can you still use it? No, unplug it

Who can fix it? Needs a technician

Typical repair time 30 minutes – 2 hours

Typical cost SAR 150 to 1,500

What it means

This code appears on Samsung dishwashers with a digital display when the water inside rises above the allowed level. The dishwasher usually runs the drain pump and stops the cycle, and water may keep entering if the inlet valve is stuck. The same code can mean something else on other brands, and its meaning may differ between some Samsung dishwasher series.

Models covered: Samsung dishwashers with a digital display; codes and their order differ between some series.

Symptoms4

OC appears and the water in the base is higher than usual.
The drain pump runs continuously.
Water may enter the machine even when it is off.
Water may leak from the door or reach the floor.

Possible causes5

Water inlet valve stuck open from debris or a fault.
Heavy suds from hand dish soap confusing the level reading.
Faulty flow meter letting in more water than needed.
Stuck or failed float or water level sensor.
Main board fault holding the valve open.

How to diagnose5

Turn off the tap under the sink right away, unplug the machine and dry any water on the floor.
Check the detergent used; heavy suds alone can cause the code.
With the machine still unplugged, open the tap slightly for a short time and watch: if water enters, the valve is stuck open. Then close the tap.
A technician unplugs the machine before opening it, then tests the inlet valve and flow meter against the manufacturer specification.
The technician checks the float or level sensor, then the valve output on the main board.

How to fix6

Keep the tap closed until the repair, and use only dishwasher detergent.
Run a rinse cycle to clear suds if they were the cause, and confirm the code does not return.
Replace the inlet valve if it sticks open or leaks when closed.
Replace the flow meter or level sensor, or free a stuck float.
Repair or replace the main board if it holds the valve open.
Run a supervised cycle and confirm the water stops at the normal level.

Repair cost

0–200

200–600

600–1,500

1,500+

In Saudi riyals; the highlighted part is the expected range for this fault.

Most cases are solved with an inlet valve or flow meter; the cost reaches the high end if the main board must be replaced.

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

Water enters the dishwasher when it is off. Why?

That is a strong sign of an inlet valve stuck open. Keep the tap closed except when running the machine until the valve is replaced.

Can suds cause this code?

Yes. Hand dish soap makes heavy suds that can read as too much water. Clear the suds and run a rinse cycle; if the code does not return, no technician is needed.

Should I keep using the machine?

Not until the cause is known, because water can overflow onto the floor and reach electrical parts.

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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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