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Samsung Dishwashers LC Error Code (Leak Detected): How to Fix It Yourself

The LC code means your Samsung dishwasher thinks it has detected a water leak. Sometimes there is an actual leak, but often the sensor in the base gets triggered by a small amount of condensation or a minor spill. Checking the base and drying the sensor usually clears this code.

⚡ Difficulty: Medium⏱ 15-40 minutes💰 Parts cost: $0–$25🔧 Tools: Towels, Phillips screwdriver, Flashlight

⚠️ Safety First

  • Turn off the dishwasher and unplug it before inspecting.
  • Shut off the water supply valve under the sink.
  • Wipe up any standing water to prevent slipping.

Parts You May Need

Leak Sensor Assembly (if sensor is defective)

~$10–$25

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Step-by-Step Repair

  1. 1

    Turn off power and water supply

    Unplug the dishwasher or flip its breaker. Turn off the water supply valve under the sink. Wait two minutes — sometimes the code clears on its own after a power reset.

  2. 2

    Remove the bottom front panel

    Locate the screws on the front bottom panel (kickplate) and remove them. Pull the panel off to expose the base area underneath. Check for pooled water or dripping.

  3. 3

    Dry the base and sensor area

    Use towels to soak up any water in the base. Find the leak sensor — it is a small disc or float usually near the front-left of the base. Make sure it moves freely and is completely dry. Moisture on the sensor can trigger a false LC code.

  4. 4

    Inspect hoses and connections

    While the panel is off, use a flashlight to check all the hose connections, the door gasket, and the area around the pump. Look for water stains, mineral deposits, or dripping. Tighten any hose clamps that seem loose.

  5. 5

    Reassemble and test

    Replace the bottom panel, restore power and water, and run a short cycle. If the LC code does not return, you are all set. If it comes back right away without any visible water, the sensor itself may be faulty and need replacing.

If That Didn't Work

  • Worn or damaged door gasket
  • Loose hose connection at the pump or inlet
  • Cracked tub or sump housing
  • Faulty moisture sensor giving false alarms

When to Call a Professional

If there is an active leak you cannot pinpoint, or if the sensor keeps triggering with no water present, a technician can run diagnostics. Expect to pay $120–$250 depending on whether the fix is a gasket, hose clamp, or sensor replacement.

Related Repairs

Bosch — E24 Error Code

Easy · 15-30 minutes · $0–$15

Samsung — Dishwasher Not Draining

Easy · 15-30 minutes · $0–$25

Whirlpool — Dishwasher Not Cleaning Dishes

Easy · 15-30 minutes · $0–$20

LG — LE Error Code (Motor Error)

Medium · 20-45 minutes · $0–$40

Disclaimer: This guide is for informational and educational purposes only and does not constitute professional repair advice. All repairs are performed at your own risk. RepairItFree.com is not liable for any personal injury, property damage, device damage, voided warranties, or other losses resulting from the use of this information.

If you are unsure about any step — especially anything involving electricity, gas, water, or refrigerant — stop and consult a qualified professional. Your safety is more important than saving money.

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