Samsung Dishwasher Error Code SYMPTOM-NOT-DRAINING — How to Fix (Dishwasher not draining)

If your Samsung dishwasher is displaying the SYMPTOM-NOT-DRAINING error code, you’re likely frustrated and unsure about what it means or how to fix it. This error indicates that the dishwasher’s control board detects water remaining in the tub after a drain cycle. Don’t worry; we’ll walk you through a comprehensive troubleshooting guide to help you identify and potentially fix the issue.

What the Samsung Dishwasher Error SYMPTOM-NOT-DRAINING Actually Means

The SYMPTOM-NOT-DRAINING error code on your Samsung dishwasher signifies that the machine’s control board has detected water remaining in the tub after a drain cycle. This usually points to an issue with the drain pump, hose, or related sensor not moving water out efficiently. The error is essentially a safety feature to prevent further damage or flooding.

The sensor or component that triggered this error is likely the drain pump or the water-level sensor (if equipped). These components work together to ensure proper water drainage during cycles. If either fails to function correctly, the control board will halt operation and display the error code.

As for safety, it’s generally not recommended to continue using the dishwasher with this error. Excess water left in the tub can lead to mold, unpleasant odors, or even short circuits. It’s best to address the issue promptly.

Diagnose This in 5 Minutes (Before Calling Anyone)

Before diving into complex repairs or calling a technician, perform these quick checks:

• Power cycle: Press the Power button to turn off the dishwasher. Wait 60 seconds, then press Power again to restart. Run a drain cycle to see if the error persists.
• Inspect the drain hose: Pull the dishwasher away from the cabinet and locate the drain hose. Check for kinks, blockages, or improper connections. Ensure the hose is securely attached to both the dishwasher and the sink drain or garbage disposal.
• Check the drain filter: Depending on your model, you might have a drain filter or debris trap. Consult your user manual to locate and clean it.

Fault Origins: From Most to Least Common

Here are the common causes of the SYMPTOM-NOT-DRAINING error, ranked by likelihood:

1. Clogged or Faulty Drain Pump

• Description: The drain pump is responsible for removing water from the tub during drain cycles. A clogged or faulty pump can prevent proper drainage.
• How to verify: Check the pump for blockages or debris. Test the pump’s electrical continuity using a multimeter.
• Fix difficulty: Medium to High
• Cost: $50-$200 (depending on the model and pump type)

2. Kinked or Blocked Drain Hose

• Description: A kinked or blocked drain hose can restrict water flow, causing the error.
• How to verify: Inspect the hose for kinks, blockages, or improper connections.
• Fix difficulty: Low to Medium
• Cost: $0-$50 (depending on the hose type and replacement)

3. Faulty Check Valve (Anti-Backflow)

• Description: The check valve prevents wastewater from flowing back into the tub. A faulty valve can cause drainage issues.
• How to verify: Inspect the check valve for damage or blockages. Test its functionality.
• Fix difficulty: Medium
• Cost: $20-$50 (depending on the model and valve type)

4. Malfunctioning Water-Level Sensor

• Description: Some Samsung models use a water-level sensor to monitor tub water levels. A malfunctioning sensor can trigger the error.
• How to verify: Test the sensor’s electrical continuity and functionality.
• Fix difficulty: Medium to High
• Cost: $50-$150 (depending on the model and sensor type)

Hands-On Repair Instructions

The most common cause of the SYMPTOM-NOT-DRAINING error is a clogged or faulty drain pump. Here’s a step-by-step guide to fix it:

Safety warnings:

• Unplug the dishwasher from the power outlet before starting repairs.
• Wear protective gloves and safety glasses.

Tools needed:

• Phillips #2 screwdriver
• T20 Torx screwdriver
• Digital multimeter (≥2 kΩ range)
• Needle-nose pliers
• Bucket (5 L or larger)

Time estimate: 1-2 hours

Step-by-Step Instructions:

1. Disconnect power: Unplug the dishwasher from the power outlet.
2. Remove the lower rack and spray arm: Take out the lower rack and spray arm to access the pump area.
3. Unscrew the pump cover: Use a Phillips #2 screwdriver to remove the screws holding the pump cover.
4. Inspect and clean the pump: Check the pump for blockages or debris. Clean or replace the pump as needed.
5. Test pump electrical continuity: Use a multimeter to test the pump’s electrical continuity.
6. Reassemble and test: Reinstall the pump cover, lower rack, and spray arm. Run a test cycle to verify the fix.

Model & Year Variations

While the SYMPTOM-NOT-DRAINING error is common across many Samsung dishwasher models, some variations exist:

• Models with a drain filter: Some models have a drain filter or debris trap that needs to be cleaned or replaced.
• Models with a water-level sensor: Some models use a water-level sensor to monitor tub water levels. This sensor can trigger the error if malfunctioning.

What You’ll Pay to Fix This

Here’s a breakdown of the estimated repair costs:

Maintenance Tips to Avoid Recurrence

To prevent the SYMPTOM-NOT-DRAINING error from recurring:

• Regularly clean the drain filter: If your model has a drain filter, clean it every 1-2 months.
• Check and clean the drain hose: Inspect and clean the drain hose every 6-12 months.
• Run cleaning cycles: Run cleaning cycles (if available) to maintain the dishwasher’s performance.

Time to Call the Pros?

If you:

• Are unsure about performing repairs
• Have tried troubleshooting steps without success
• Notice complex issues (e.g., faulty control board, multiple component failures)

Call a professional appliance technician for assistance. They can:

• Diagnose the issue accurately
• Perform repairs efficiently
• Provide warranty coverage (if applicable)

For Samsung support, call 1-800-726-7864.

Frequently Asked Questions

Q: What does the SYMPTOM-NOT-DRAINING error mean on my Samsung dishwasher? A: The error indicates that water remains in the tub after a drain cycle, usually due to issues with the drain pump, hose, or related sensor.

Q: Can I still use my dishwasher with this error? A: No, it’s not recommended to continue using the dishwasher with this error, as excess water can lead to mold, odors, or short circuits.

Q: How do I reset the error code? A: Try a power cycle: press the Power button, wait 60 seconds, and press Power again.

Q: Can I fix the error myself? A: Yes, you can try troubleshooting and repairing the issue yourself, but if unsure or if the issue persists, consider calling a professional.

Q: What is the cost to replace a faulty drain pump? A: The cost can range from $50 to $200, depending on the model and pump type.

Q: How often should I clean the drain filter? A: Clean the drain filter every 1-2 months, or as recommended by the manufacturer.

For more information on related error codes, visit:

• GE Dishwasher Error FTD
• LG Dishwasher Error IE
• GE Dishwasher Error C3

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