Which part is usually at fault for Samsung error LC?

The most commonly implicated component is the leak sensor.

What is the first thing to try for Samsung error LC?

The unit will keep draining until dry; check for a blocked Waterwall reflector on those models and inspect for leaks before restarting.

Error LC Stops machine US market

LC on a Samsung dishwasher usually means: The leak sensor detected moisture. On a Samsung Dishwasher, code LC points to the leak sensor.

Fix it fast: Investigate the leak. Full ranked steps below.

Manufacturer source Updated Oct 17, 2026 View source

Try these in order. Stop when the code clears.

1 Investigate the leak
Moderate
- The unit will keep draining until dry; check for a blocked Waterwall reflector on those models and inspect for leaks before restarting.
Source

A drain-pump operation fault was detected. On a Samsung Dishwasher, code 3C points to the drain pump.

The water supply is inadequate in pressure or temperature. On a Samsung Dishwasher, code 4C points to the water inlet valve.

The dishwasher cannot drain. On a Samsung Dishwasher, code 5C points to the drain pump.

The water level inside the tub is too low. On a Samsung Dishwasher, code 9E points to the water level sensor.

A panel button is being sensed as stuck. On a Samsung Dishwasher, code BE points to the control panel.

The water overheated beyond the safe limit. On a Samsung Dishwasher, code HC points to the heating element.

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