Samsung Dishwasher LC/LE Error: Leak Sensor Fix

The LC or LE error code on Samsung dishwashers indicates the leak sensor has detected moisture where it doesn’t belong—even when a leak isn’t visible or noticeable. This error has elevated false-positive rates on certain models and can be triggered by condensation, humidity, or minor splashing.

What the LC/LE Error Code Means

When your Samsung dishwasher displays LC (or LE), the leak sensor in the base pan has detected moisture. The dishwasher responds by:

• Activating the drain pump to remove water
• Turning itself ON automatically, even when you’ve pressed Power off
• Running the drain pump continuously until power is disconnected

Critical behavior: The only way to stop a dishwasher in LC/LE mode is to disconnect power at the circuit breaker. The power button on the unit will not stop the drain pump operation.

Model Coverage

This guide applies to Samsung dishwashers displaying LC or LE error codes:

• DW80CG, DW80BB, DW80B series (2022+)
• DW80R, DW80T series (2019-2022)
• DW80M, DW80K, DW80J, DW80N series (2015-2020)

Known issue: The DW80K series has elevated false-positive rates for LC/LE errors. The leak sensor can trigger from condensation, ambient humidity, or water splashing during normal operation.

Common Causes

The LC/LE error can result from:

1. Loose water supply hose connection at inlet valve
2. Excess detergent creating foam that drips onto sensor
3. Dishwasher not level (water pooling at door and escaping)
4. Door seal misaligned or debris preventing full seal
5. Recent movement splashing water onto sensor (false trigger)
6. Cabinet screws over-tightened, bowing tub walls and creating gaps
7. Condensation or humidity triggering sensor (false positive)

Step-by-Step Fix

Step 1: Disconnect Power Immediately

The LC/LE error causes continuous drain pump operation that cannot be stopped from the control panel.

1. Go directly to your electrical panel
2. Turn off the circuit breaker for the dishwasher
3. Verify the dishwasher stops running

Do not attempt other troubleshooting while power is on—the continuous pump operation can cause additional problems.

Step 2: Turn Off Water Supply

Prevent additional water from entering if there’s an actual leak.

1. Open the cabinet under the sink
2. Locate the dishwasher water supply valve
3. Turn it clockwise to close
4. This is a precaution—you’ll reopen it after troubleshooting

Step 3: Drain the Base Pan

Water in the base pan triggers the LC/LE error, whether from an actual leak or condensation.

1. Open the dishwasher door
2. Remove the bottom rack
3. Place towels on the floor in front of the dishwasher
4. With a helper, carefully tilt the dishwasher backward about 45 degrees
5. Water will drain from the base pan toward the back
6. Hold for 30-60 seconds to allow complete drainage
7. Carefully return to upright position

Step 4: Dry the Sensor Area

The leak sensor must be completely dry to clear the error.

1. Remove the kick plate (bottom front panel) if accessible
2. Use towels to absorb all visible moisture in the base pan
3. The leak sensor is typically at the front of the base pan—a small disc or pad
4. Dry this area thoroughly
5. Use a fan or hair dryer on cool setting to speed drying if needed
6. Wait at least 30 minutes before restoring power

Step 5: Level the Dishwasher

An unlevel dishwasher can cause water to pool at the door and escape, triggering false LC errors.

1. Place a level on the bottom of the tub (door open)
2. Check front-to-back and side-to-side
3. Critical: The front should NOT be lower than the back
4. Adjust the leveling feet:
   • Turn clockwise to raise
   • Turn counterclockwise to lower
5. The dishwasher should be level or have the front slightly higher than the back

Step 6: Check Cabinet Opening Width

Over-tightened mounting screws can bow the dishwasher tub walls, creating gaps that allow water to escape.

1. Measure the cabinet opening width
2. Samsung dishwashers require exactly 22 inches of clearance
3. If the opening is narrower due to tight mounting:
   • Loosen the mounting screws at the top
   • Reposition the dishwasher with proper clearance
   • Retighten screws without excessive force

Step 7: Inspect for Actual Leaks

Before restoring power, check for genuine leak sources.

1. Examine the water supply hose connection at the inlet valve
2. Check the door seal for debris, damage, or misalignment
3. Inspect the bottom of the tub for cracks
4. Look at the spray arm mounts for cracks or loose fittings
5. Check the detergent dispenser area for cracks

Step 8: Restore Power and Test

1. Ensure the base pan area is completely dry
2. Restore power at the circuit breaker
3. Turn on the water supply valve
4. Turn on the dishwasher
5. Run a short cycle and monitor for:
   • Actual water leaks during operation
   • LC/LE error returning

Preventing False LC/LE Errors

• Use proper detergent amounts—excess detergent creates foam that can drip onto sensors
• Keep the dishwasher level—check periodically as floor settling can change alignment
• Clean door seals monthly—debris buildup prevents proper sealing
• Don’t over-tighten mounting screws—allow proper clearance

Safety Warnings

• Always disconnect power at the breaker before tilting or servicing
• Turn off water supply before checking connections
• Use caution when tilting—dishwashers are heavy (100+ lbs)
• If you see active water spraying, turn off water supply immediately

When to Call a Tech

Contact a professional if:

• LC/LE returns immediately after a complete dry-out
• You find an active leak you cannot repair
• The door seal is damaged and needs replacement
• Water is coming from inside the tub (internal component failure)
• The leak sensor itself appears damaged

Typical repair costs:

• Door seal replacement: $100-150
• Leak sensor replacement: $75-125
• Internal hose/connection repair: $150-250

Sources

For official Samsung support:

• Samsung Dishwasher Error Codes
• Samsung LC/LE Error Troubleshooting
• Samsung US Support

Related Guides

• Samsung Dishwasher Error Codes: Complete Guide
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• How to Reset a Samsung Dishwasher