6 Common Problems for Samsung Dishwasher Not Washing

Welcome to our comprehensive guide for rectifying issues with Samsung dishwashers not cleaning dishes effectively. Having spent several years as an expert technician, I fully understand the frustration that comes when a dishwasher doesn’t perform its basic function. This manual will explore common causes and offer step-by-step solutions to bring your Samsung dishwasher’s cleaning performance back to its optimal level.

Why Samsung Dishwasher Not Washing?

Is your Samsung dishwasher not washing dishes properly? Let’s delve into some possible causes for this issue.

1. Water Supply Issues

Inadequate water supply can hinder the dishwasher’s cleaning performance. Ensure that the water supply line is free from kinks or obstructions. Additionally, check if the water supply valve is fully open and verify the water pressure to the dishwasher.

2.Clogged or Faulty Spray Arms

If the spray arms are clogged or not rotating properly, the dishwasher won’t be able to distribute water effectively. Remove the spray arms and clean them thoroughly, paying close attention to any debris lodged in the nozzles. Ensure the spray arms rotate freely once reinstalled.

3.Insufficient Detergent or Improper Detergent Usage

Using the wrong type of detergent or insufficient amounts can impact cleaning performance. Always use a dishwasher-specific detergent and follow the manufacturer’s recommendations regarding the correct amount to use. Check the detergent dispenser to ensure it is functioning correctly.

4.Filter Blockage

A clogged filter can obstruct water flow and prevent proper cleaning. Locate the dishwasher filter and remove it for cleaning. Rinse it under running water, removing any accumulated debris or residue.

5.Malfunctioning Wash Motor

A faulty wash motor may result in a lack of sufficient water circulation, leading to poor washing performance. Inspect the wash motor for any visible damage or blockage. Perform a test according to the manufacturer’s instructions or seek professional assistance for motor replacement if needed.

6.Control Panel or Electronic Control Board Problems

Issues with the control panel or electronic control board can disrupt the dishwasher’s operation. Check for error codes or flashing lights on the control panel. Attempt a Samsung dishwasher reset to troubleshoot minor control board problems. For more complex issues, consult the manufacturer’s manual or reach out to a professional for control board replacement.

How To Fix Samsung Dishwasher Not Washing?

Now that we have identified potential causes, let’s move on to resolving the problem and restoring your Samsung dishwasher’s washing performance.

Implement Appropriate Solutions

Based on the troubleshooting steps outlined above, address each issue individually. Start by ensuring a proper water supply, followed by cleaning the spray arms, checking detergent usage, and removing any filter blockages. If necessary, inspect the wash motor and control panel, applying relevant solutions.

Repeat Relevant Steps

If the initial troubleshooting doesn’t resolve the issue, don’t be discouraged. Sometimes, a combination of factors may contribute to the problem. Repeat the relevant steps to ensure each component is functioning correctly.

Seek Professional Assistance

If the dishwasher still fails to wash dishes effectively after thorough troubleshooting, it may be time to seek professional help. Contact Samsung customer support or an authorized service center for further guidance. Their expertise will help diagnose and address the problem accurately.

Samsung Dishwasher Not Washing

How do I run diagnostics on my Samsung dishwasher?

To run diagnostics on your Samsung dishwasher, follow these steps:

  1. Ensure the dishwasher is powered on and all buttons are unpressed.
  2. Press the “Normal” button to turn on the dishwasher.
  3. Next, press the “Heavy” button, followed by the “Delicate” button. Repeat this sequence three times within eight seconds.
  4. The dishwasher will enter diagnostic mode, indicated by all the LED lights on the control panel illuminating.
  5. Once in diagnostic mode, you can navigate through different test cycles by pressing the “Heavy” button. Each press will advance to the next cycle.
  6. To start a test cycle, press the “Start/Resume” button.
  7. The dishwasher will now perform the selected diagnostic test, and any error codes or issues will be displayed on the control panel.

Please refer to your dishwasher’s manual for specific instructions as they may vary slightly depending on the model.

FAQ Samsung Dishwasher Not Washing

What to do when Samsung dishwasher won’t start?

To troubleshoot a Samsung dishwasher won’t start, follow these steps. First, check the power connection and ensure it’s properly plugged in. Verify that the circuit breaker or fuse is not tripped or blown. Ensure the dishwasher door is securely closed and latched. If the control panel is unresponsive or shows error codes, try resetting the dishwasher by turning off the power at the circuit breaker for a few minutes, then turning it back on

What is Samsung dishwasher code 4c?

The Samsung dishwasher error code 4C indicates a water supply issue which is different from Samsung dishwasher code 3c error. To troubleshoot, check the water supply valve, hose, and water pressure. Make sure the valve is fully open, the hose is not kinked, and the water pressure is sufficient. Inspect the water inlet valve for any blockages.

Why is Samsung dishwasher not draining?

If your Samsung dishwasher is not draining, try these steps. Check the drain hose for clogs or kinks. Clean the drain filter of any debris. Ensure the garbage disposal (if connected) is clear and functioning properly. Clean the air gap, if applicable. Examine the drain pump for obstructions or damage and remove any debris.


Experiencing a Samsung dishwasher not washing dishes properly can be frustrating, but by following the troubleshooting steps outlined in this article, you can identify and resolve the issue. Remember to check the water supply, clean the spray arms, use the correct detergent, inspect the filter, and examine the wash motor and control panel. Proactive troubleshooting and seeking professional assistance when needed will ensure your Samsung dishwasher performs at its best. Don’t let a simple issue hamper your kitchen’s efficiency—get your dishwasher back in action today!

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By Steve

👋 Hey there! I'm Steve. 29 years old, a technician that came from an Electronic and IT background. I love problem-solving and enjoy tinkering with electronics