Samsung LC Error Code — What It Means
The LC code means your Samsung washer’s leak detection system has been triggered. The machine has detected moisture or water at the base leak-sensing area and stopped the cycle to prevent water damage. In practical terms, either water is actually leaking from a component or connection, or the sensor is reading a false alarm from condensation, detergent foam, or residue on the sensor itself.
Common Causes
- Actual water leak from door boot or gasket Splits, tears, or worn seals in the door boot allow water to escape during fill, agitation, or spin.
- Loose, kinked, or cracked inlet or drain hoses Inlet fill hoses, drain hoses, or their clamps and fittings can leak or create moisture at the base if damaged or poorly seated.
- Drain pump seal or pump connection leak Worn pump seals or loose pump-to-tub hose connections allow water to drip onto the leak sensor area.
- False trigger from condensation or detergent residue Moisture from high humidity, excessive suds, or detergent buildup on the leak sensor can activate the code without a true leak.
- Faulty leak sensor or wiring The leak sensor assembly at the bottom of the washer or its wiring harness can fail and send a false LC signal to the control board.
Step-by-Step Fix
- Power down and reset the washer by unplugging it or switching off the circuit breaker for 60 seconds, then restart to see if the code clears.
- Inspect the base and cabinet by tilting the washer back or removing the access panel, and look for fresh water, drip trails, or pooling under and around all water-carrying joints.
- Check all hoses and connections by examining inlet fill hoses, drain hose, and pump-to-tub hoses for kinks, cracks, loose clamps, or seepage at fittings.
- Inspect the door boot and gasket for splits, tears, or worn areas that allow water to escape during fill or agitation, and wipe down any visible moisture.
- Locate and clean the leak sensor at the bottom of the washer (consult your service manual for exact location), removing any detergent residue, lint, or moisture from the sensor surface.
- Run an empty test cycle and watch for any new leak source and for excessive suds that indicate wrong detergent type or overuse.
- Repair the verified leak source first by tightening clamps, replacing damaged hoses or boot, or reseating connections, then clear the sensor area and retest before replacing the sensor or control board.
Parts Often Needed
| Part | Notes |
|---|---|
| Door boot / door gasket | Amazon | Replace if torn, split, or seeping water during cycles. |
| Inlet fill hoses and clamps | Amazon | Use OEM or reinforced hoses if cracked or connections are loose. |
| Drain pump assembly or pump seal | Amazon | Replace if pump seals are worn or pump-to-tub hose connection leaks. |
| Leak sensor assembly | Amazon | Replace if cleaning does not clear false alarms and no physical leak is found. |
When to Call a Pro
Call a qualified appliance technician if you cannot locate any visible leak after inspecting all hoses, connections, and the door boot, or if the LC code returns immediately after cleaning the sensor and verifying all joints are dry. Also call if you lack confidence working inside the cabinet or if the repair requires disassembly of the tub, pump, or control board to trace wiring or replace the sensor. Professional diagnosis is the fastest route when the machine shows no external moisture but the code persists, because the fault may be internal sensor wiring or a control board input circuit issue.