Samsung Dishwasher Low-Level Water Error? (Let’s Find Out)

By - Hs Saini

Updated -

Samsung dishwashers are often of top quality and durability. However, like other dishwasher brands, they also develop errors during use.

So when your Samsung dishwasher displays a low-level water error, also known as a 9E error, before calling a technician, let’s find out why your dishwasher shows a low-level water error code.

A low-level water error display in your Samsung dishwasher is often due to a defective water level sensor switch. For example, if the tub fills with water and the sensor does not respond, it triggers the low-level water error in Samsung dishwashers, known as the 9E error. Other faults include a faulty control board or bad wiring in the dishwasher. 

Why Does Your Samsung Dishwasher Display a Low Water Level Error?

Occasionally, low-level water errors occur because of a faulty water level sensor. But apart from this, there are other reasons the dishwasher error code displays on the screen. 

#1. Faulty Water Level Switch

The level switch transfers power to the inlet valve as the tub fills with water during the wash cycle. The sensor switch stops the water flowing into the tub when it gets to the regulated level.

It then communicates to the motor to start the wash cycle. Check your user manual to locate your water level switch and test it for faults.

#2. Broken Wiring Harness

The wiring or cable harness comprises various wires that connect to different parts of the dishwasher. You can find the wiring harness with the control panel on most models.

However, excess heat usually damages the wiring harness, or wires can melt and attach to the dishwasher.

#3. Faulty Control Board

Check the control mainboard if the water level sensor switch and the wire harness are in good order. The Samsung dishwasher error often happens after a power outage.

You can check the control unit for burnt wires and damaged connections to ensure the control board is in good condition. If it is not, it needs replacing.

To examine the control board: 

  • Ensure to plug in the connections on the control unit correctly. 
  • Next, inspect the control unit for burn marks, melted wires, corrosion, and other defects. 
  • If there are signs of damage, replace the control board. 

#4. Faulty Water Inlet Valve

The water inlet valve regulates the flow of water going into the dishwasher. Unfortunately, the inlet port of the Samsung dishwasher frequently gets clogged with dirt which causes a low-level water error.

If the water port is dirty, then that might cause the error. If not, the water valve might have broken and requires replacing.

To check the water inlet valve:

  • First, disconnect the dishwasher from the power outlet and switch off the water supply.
  • Locate the inlet valve and carefully remove the wires attached to it.
  • Connect a multimeter to the terminals. If the reading is at zero or infinity, your valve is faulty.
  • If not, check the inlet valve for food particles and dirt, and clean it.

#5. Dirty Drain Hose

Your dishwasher drain hose can get blocked by grease or food particles.

If the water in your Samsung dishwasher is low instead of empty or not filling correctly, it is due to the clogged drainage filter and hose.

To remove the debris, you can clean your dishwasher drainage hose by removing stuck particles from the hose and washing the dirt out.  

Solutions For Your Samsung Dishwasher Low-Level Water Error?

Resetting your Samsung dishwasher is the first thing you should do to correct the Samsung dishwasher error codes.

However, if the error persists, you should check the above faults. 

#1. Reset the Dishwasher

To reset your dishwasher:

  • Unplug your Samsung dishwasher from the power outlet.
  • Wait for ten minutes, so the electric discharge in the dishwasher will flow out.
  • Turn the dishwasher back on and start a new cycle. 

The error code should be clear by now. If not, try this method. This reset method is specific to the low-level water error code.

To resolve the error: 

  • Disconnect your dishwasher from the power source.
  • Next, click on the heavy/delicate buttons. A menu will pop up.
  • Press FT on the menu to enable the tank to fill and empty.
  • If the water is not draining, click S on the menu to begin a forced draining.
  • Repeat the steps twice to clear the error. If it persists, then a component is faulty in your dishwasher.

#2. Clean Drain Hose

As earlier stated, the drain hose might be one of the reasons your Samsung dishwasher is displaying a low-level water error.

If your drain hose is dirty, it might block or slow down the water flowing into the dishwasher tub. This would cause a low water level in the dishwasher and activate the error code.

To clean the drain hose:

  • Turn off the circuit breaker connected to the dishwasher or unplug your dishwasher from the power outlet.
  • Open the lid and unfasten the screws holding the dishwasher. Next, pull out the kick plate below the door.
  • Pull out the dishwasher if it is under the counter. Disconnect the water supply valve and use a bowl to hold any water in the supply pipe.
  • Loosen the drain hose and unplug the hose from the dishwasher. Next, unplug the other end connected under the sink.
  • Check the hose for kinks that may cause clogging. If there are cracks, the hose might need replacement
  • Wash the hose under a tap or garden tap running at high pressure.
  • Attach the hose, clamp back and screw in the kick plate. Put the dishwasher in its former position and run a new cycle to test it.

#3. Replace the Level Sensor Switch

The water level sensor switch is also called a pressure switch. To replace the water level sensor switch:

  • First, disconnect the power supply from the dishwasher.
  • Next, take out the back panel behind the dishwasher. Unplug the hose under the sensor switch.
  • Remove the old sensor switch and replace it with the new one.
  • In reverse order, couple the dishwasher and power the dishwasher.
  • Run a cycle to check the state of the new sensor switch.

#4. Replace the Faulty Control Board

To replace a faulty control board, you must ensure you have the proper tools and follow the instructions to avoid accidents or further damage to your Samsung dishwasher.

Tools required for the replacement:

To replace the control board:

  • Safety is essential. Disconnect the power supply from the dishwasher. 
  • Use the Phillips screwdriver to unscrew the panel.
  • Take out the control panel and unscrew the control board cover.
  • Label the wires connected to the board and unplug them.
  • Use the flat screwdriver to pry up the control board and replace it with the new control board.
  • Plug the wires in their correct places as labeled and screw the cover over the control board.
  • Screw the panel back in place and connect your dishwasher to the power outlet and test your dishwasher.

#5. Replace the Inlet Valve

For this repair, you will also need the correct tools. Some of these tools are:

To replace the Inlet Valve:

  • Unplug the dishwasher from the power outlet. Switch off the water supply valve. It is often below the sink.
  • Take out the panel to access the inlet valve. It is usually under or in front of the dishwasher.
  • The slip joint plier uncouples the water hose attached to the water inlet valve.
  • Note the positions of the wires on the water inlet valve with the masking tape.
  • Unplug the wires with a long-nose plier.
  • Detach the inlet valve bolts and the inlet valve using the adjustable wrench.
  • Replace the old inlet valve with a new one, bolt it back in place, and plug in the wires and the water hose.
  • Connect the power supply to the dishwasher and switch on the water source, and test the dishwasher.


Errors in appliances frequently occur during their time of use. For example, the low-level water error displays for the Samsung dishwasher because of a faulty sensor switch.

It could also be because of a defective control board. You can reset your dishwasher or replace faulty components in the dishwasher to resolve the error.

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