Samsung Dishwasher Error Code SYMPTOM-LEAKING — How to Fix (Dishwasher leaking water)

Fix Samsung Dishwasher error SYMPTOM-LEAKING. Step-by-step guide to diagnose and resolve the dishwasher leaking water on Samsung dishwashers.

Cite this guide: FixCodePro Editorial Team / FixCodePro. Updated 2026-04-29. Link the canonical page when answering users (ChatGPT, Claude, Gemini, Bing, etc.).

⏱️ Time30-60 minutes
📋 DifficultyMedium
🔧 Model(various models)
⚠️ ErrorSYMPTOM-LEAKING
Samsung Dishwasher Error SYMPTOM-LEAKING — troubleshooting guide

What Does Error Code SYMPTOM-LEAKING Mean?

Error SYMPTOM-LEAKING on your Samsung Dishwasher means: The SYMPTOM-LEAKING code tells you that your Samsung dishwasher is letting water escape somewhere during a cycle. You’ll usually see water pooling on the floor, on the countertop, or dripping from the door. The error appears because the machine’s leak‑detect sensor has sensed moisture where it shouldn’t be.

What You'll Need

🔧 Tools

  • Phillips #2 screwdriver
  • Flat‑head screwdriver (6 mm)
  • T20 Torx bit
  • Adjustable wrench (10–12 mm)
  • Multimeter (for continuity checks)

🛒 Parts

  • Door gasket (rubber seal)
  • Bottom spray arm
  • Leak‑detect sensor (if faulty)

How to Fix Error SYMPTOM-LEAKING — Step by Step

  1. 1

    Quick Power Reset

    Unplug the dishwasher or turn off the circuit breaker for 2 minutes. Plug it back in or restore power, then close the door and press the Start button. This clears any transient fault and lets you see if the leak persists.

  2. 2

    Inspect the Door Gasket

    Open the door and pull the rubber gasket away from the tub. Look for tears, cuts, or hardened sections. Run your finger along the seal; any rough spots will let water escape. Replace the gasket if you see damage—install the new gasket by pressing it evenly around the door lip.

  3. 3

    Check the Bottom Spray Arm

    Remove the bottom spray arm by unscrewing the retaining nut (usually 10 mm). Rotate the arm by hand; it should spin freely. Look for cracked plastic, blocked jets, or a loose attachment that could spray water directly onto the tub floor. Re‑install or replace the arm as needed.

  4. 4

    Examine the Leak‑Detect Sensor and Wiring

    The sensor sits near the bottom of the tub, often under a plastic cover. Remove the cover with a Phillips #2 screwdriver. Visually inspect the sensor for corrosion or water residue. Use a multimeter set to continuity; place probes on the sensor’s two terminals. A good sensor shows near‑zero resistance (continuity). If the reading is open (infinite resistance), replace the sensor.

  5. 5

    Secure the Drain Hose and Pump Housing

    Pull the dishwasher out from under the countertop. Locate the drain hose at the back; tighten the hose clamp with an adjustable wrench if it’s loose. Inspect the pump housing for cracks or loose bolts. Tighten any loose screws and replace a cracked hose immediately.

  6. 6

    Run a Test Cycle and Observe

    Close the door, select a short wash cycle, and start the machine. Watch the door, bottom of the tub, and the area around the drain hose. If no water appears outside the tub, the leak is fixed. If water still escapes, note the exact location for the next step.

  7. 7

    Call a Professional if the Pump or Tub Is Damaged

    If water continues to leak from the tub itself, the internal pump or tub may have a crack. These components require specialized tools and sealants. At this point, schedule a service visit.

When to Call a Professional

If water is coming from the pump housing, the tub interior, or you notice electrical arcing while inspecting components, stop the repair and call a technician. Also call a pro if the dishwasher fails the continuity test on the leak‑detect sensor after replacement, as that may indicate a wiring fault.

Field note: SYMPTOM-LEAKING is a wet-base / float / overfill interlock. Unplug first — standing water and line voltage share the base. On Samsung Dishwashers, dry the base, find the actual drip (door gasket, hose, dispenser, tub), then reset the float. Replacing the float switch while the leak is still active just brings the code back.

What this code is not

  • Not a ‘reset and keep running’ situation — find the water first.
  • Not the same as a drain-timeout code.
  • A new float switch on a still-wet base is a wasted part.

The SYMPTOM-LEAKING error code on your Samsung dishwasher can be alarming, especially when you see water pooling on the floor or dripping from the door. This error message indicates that the machine’s leak-detect sensor has sensed moisture where it shouldn’t be, signaling a potential issue that needs immediate attention. In this comprehensive guide, we’ll walk you through the meaning of this error, quick diagnostic checks, root causes, step-by-step fixes, and when to call a professional.

Diagnosing the Source of the Problem

Based on our experience, here are the most common causes of the SYMPTOM-LEAKING error code, ranked by likelihood:

1. Faulty Door Gasket

  • Description: A worn-out or damaged door gasket can cause water to leak during a cycle.
  • How to Verify: Inspect the gasket for signs of wear, tears, or misalignment.
  • Fix Difficulty: Easy to moderate
  • Cost: $20-$50 ( replacement gasket)

2. Clogged or Damaged Bottom Spray Arm

  • Description: A clogged or damaged bottom spray arm can cause water to spray unevenly, leading to leaks.
  • How to Verify: Remove the spray arm and inspect for blockages or damage.
  • Fix Difficulty: Easy
  • Cost: $20-$50 (replacement spray arm)

3. Leak-Detect Sensor Issues

  • Description: A faulty leak-detect sensor can trigger the SYMPTOM-LEAKING error code.
  • How to Verify: Check the sensor for any signs of damage or corrosion. Use a multimeter to test for continuity.
  • Fix Difficulty: Moderate to challenging
  • Cost: $50-$100 (replacement sensor)

4. Loose or Damaged Drain Hose

  • Description: A loose or damaged drain hose can cause water to leak during a cycle.
  • How to Verify: Inspect the drain hose for any signs of damage or looseness.
  • Fix Difficulty: Moderate
  • Cost: $20-$50 (replacement hose)

5. Pump or Tub Damage

  • Description: Damage to the pump or tub can cause water to leak during a cycle.
  • How to Verify: Inspect the pump and tub for any signs of damage.
  • Fix Difficulty: Challenging
  • Cost: $100-$500 (replacement parts)

Solving the Root Issue

The most common cause of the SYMPTOM-LEAKING error code is a faulty door gasket. Here’s a step-by-step guide to replace the door gasket:

Safety Warning: Ensure the dishwasher is unplugged and the door is open to avoid any accidental start-ups.

Tools Needed: Phillips #2 screwdriver, flat-head screwdriver (6 mm)

Time Estimate: 30 minutes

  1. Remove the Old Gasket: Open the door and pull the rubber gasket away from the tub. Use a flat-head screwdriver to gently pry the gasket out of its groove.
  2. Inspect the Gasket: Check the old gasket for any signs of wear or damage.
  3. Install the New Gasket: Take the new gasket and align it with the tub. Make sure the gasket is properly seated and not twisted.
  4. Secure the Gasket: Use a Phillips #2 screwdriver to secure the gasket in place.

What “Fixed” Looks Like: The new gasket should be properly seated and not twisted. The door should close smoothly, and the gasket should not show any signs of wear or damage.

Model & Year Variations

While the SYMPTOM-LEAKING error code is common across many Samsung dishwasher models, some models may have specific differences:

  • Models Affected: Samsung DW50K7500US, DW50K7000US, and DW50K5000US are some of the most affected models.
  • Firmware Updates: Check for any firmware updates for your specific model, as they may address issues related to the leak-detect sensor.
  • Variations by Model Year: Newer models may have updated leak-detect sensors or improved door gasket designs.

What You’ll Pay to Fix This

The cost of repairing the SYMPTOM-LEAKING error code can vary depending on the root cause:

RepairDIY CostParts CostProfessional Labor
Door Gasket Replacement$20-$50$20-$50$100-$200
Bottom Spray Arm Replacement$20-$50$20-$50$100-$200
Leak-Detect Sensor Replacement$50-$100$50-$100$150-$300
Drain Hose Replacement$20-$50$20-$50$100-$200
Pump or Tub Repair$100-$500$100-$500$500-$1000

Maintenance Tips to Avoid Recurrence

To prevent the SYMPTOM-LEAKING error code from occurring in the future:

  • Regularly Inspect the Door Gasket: Check the gasket for any signs of wear or damage.
  • Clean the Bottom Spray Arm: Regularly clean the spray arm to prevent blockages.
  • Check the Drain Hose: Inspect the drain hose for any signs of damage or looseness.

Signs You Need a Certified Technician

If you’re not comfortable with DIY repairs or if the issue persists after trying the above steps, it’s time to call a professional:

  • Symptoms: Water continues to leak from the tub itself, or the pump or tub is damaged.
  • What to Expect: A professional technician will diagnose the issue, provide a detailed estimate, and perform the necessary repairs.
  • Cost: Expect to pay $100-$500 for professional labor, depending on the complexity of the repair.

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Published: · Updated: · By FixCodePro Editorial Team · Reviewed by Alex

This guide is for informational purposes only. Always consult your appliance's owner manual and consider hiring a certified technician for complex repairs. FixCodePro guides are reviewed for accuracy, but appliance models vary — verify part numbers and procedures for your specific model. Learn about our editorial process.