DIY Error Codes

Samsung dishwasher error LC

Leakage check

Close the water supply valve, turn off the dishwasher's breaker, then contact the installer.

Close the water valve and set the dishwasher's breaker to off. Don't repair it yourself.
Why
Samsung (p.5): "Disconnect the power cable (or set the circuit breaker to off) before servicing your dishwasher." "Do not repair, replace, or service any part of your dishwasher yourself. Disassembly, repairs and modifications must be performed by authorized service technicians only."

Fix it step by step

Step 1 of 4

  1. Close the water supply valve

    • 2 min
    • None
    • Caution

    Safety: Close the water valve and set the dishwasher's breaker to off. Don't repair it yourself. Water near electrical parts.

    Samsung's first action for LC.

    Why & details

    Close the water supply valve.

    Samsung chart, LC (p.30): "close the water supply valve".

  2. Switch off the dishwasher's breaker

    • 2 min
    • None
    • Caution

    Safety: Close the water valve and set the dishwasher's breaker to off. Don't repair it yourself. Electrical: use the breaker, not the dishwasher's panel.

    At your house panel, set its breaker to off.

    Why & details

    Switch off the dishwasher's breaker.

    Samsung chart, LC (p.30): "go to your house circuit breaker panel, set the dishwasher's circuit breaker switch to off".

  3. Contact the installer

    • Decision
    • None
    • Pro decision

    Samsung says the installer should fix the connection.

    Why & details

    Contact the installer.

    Samsung chart, LC (p.30): "contact the installer to fix." Samsung also says not to repair, replace or service any part of the dishwasher yourself (p.5).

  4. Then Samsung service

    • Decision
    • None
    • Pro decision

    If LC continues after the installer's fix.

    Why & details

    Then Samsung service.

    Samsung chart, LC (p.30): "If the problem continues, contact an authorized Samsung service center."

    Still showing LC?Need a pro → call a pro

Code cleared. Nice work.

Watch the display for a day to make sure it stays clear.

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Fixed after any step? Watch the display for a day to make sure it stays clear. Still LC after step 4? call a pro.

What LC means

The dishwasher has detected a leak. Samsung says to shut off the water and the breaker, then have the installer fix it.

More detail
Samsung's Information Codes chart (p.30) lists LC as "Leakage check": "If a water supply valve connection leak occurs, close the water supply valve and go to your house circuit breaker panel, set the dishwasher's circuit breaker switch to off, and then contact the installer to fix. If the problem continues, contact an authorized Samsung service center."

5-minute checks

Full answer & models

Samsung dishwasher LC is a leakage check. Close the water supply valve, switch off the dishwasher's breaker, and contact the installer to fix the leak.

Applies to: DW80K7050 SeriesDW80K5050 Series
Also searched as: Samsung dishwasher LC, Samsung dishwasher LC code, Samsung dishwasher error code LC, Samsung LC error, Samsung dishwasher leak code

Call a pro if…

  • LC is showing (Samsung: shut off water and breaker, then contact the installer).
  • LC continues after the installer's fix (Samsung: authorized service center).
  • There is water on the floor or under the dishwasher.

FAQ

What does LC mean on a Samsung dishwasher?

Leakage check. Samsung's chart says it relates to a water supply valve connection leak.

What should I do first?

Samsung says to close the water supply valve, set the dishwasher's circuit breaker to off, and contact the installer to fix it.

Can I repair it myself?

Samsung says not to repair, replace or service any part of the dishwasher yourself; repairs must be done by authorized service technicians.

Source: Samsung Dishwasher User Manual DW80K7050/DW80K5050 Series (DW7000KM): Information Codes p.30, Safety Information p.5. Written by the DIY Error Codes team. Updated 2026-10-17. DIY Error Codes is independent and not affiliated with or endorsed by Samsung.