Samsung dishwasher LC code: what it means and how to fix it
Your Samsung dishwasher is showing LC (some models show LE), it beeps, and it keeps pumping out even after you hit cancel. That's the leak sensor talking. This page covers what it actually detects, the checks you can safely do on your own, and the point where someone needs to get under the machine and find the drip.
A person answers Mon-Fri 9am-5pm. Outside those hours, leave a message and a local company calls you back.
Answered by an independent Phoenix-area appliance repair company. Not a call center.
The LC code means the moisture sensor sitting in the base pan under the tub has found water where there shouldn't be any, so the dishwasher locks out the cycle and drains to keep your floor dry. Nine times out of ten there really is water down there, either from a slow drip at a hose, gasket, or pump seal, or from an old spill or overflow that never dried out.
Check these first
Safe to do yourself. Unplug the appliance before you start.
- Cut the power, then restore it
Flip the dishwasher breaker off for a few minutes and back on. If the pan dried out on its own, the code clears and you're done. If LC comes back the moment it powers up, there's still moisture sitting on the sensor.
- Look at the floor and the door area
Check the floor in front of the dishwasher and along both sides, then wipe the door gasket and the inside face of the door. An overflowing sink, a spill, or water running down the outside of the door can all find their way into the pan.
- Cut back on detergent
Overfilling the dispenser makes foam. Foam pushes moisture out through the vents and down into the pan, which is exactly where the sensor lives. Run a few cycles with the recommended amount, or use a premeasured pod so there's nothing to guess at.
- Clean the filter and spray nozzles
Pull the bottom rack, twist out the filter assembly, rinse it, and poke the food debris out of the spray arm holes. Clogged nozzles throw water sideways at the door seal instead of up at the dishes. That's an easy way to get water somewhere the sensor will find it.
- Check the hoses and connections
Power off first, then take off the lower kick plate and look at the supply line, the inlet valve, and the drain hose. You're hunting for drips, kinks, loose clamps, or crusty white mineral trails. That white residue is the giveaway on a slow leak that's been going for months.
- Dry the base pan
This sensor trips on almost nothing, as little as a couple of teaspoons. If you can get a hand or a rag through the kick plate opening, blot the pan dry. Blowing air under the machine works too, it just takes longer.
- Check that the dishwasher sits level
A machine that leans lets water pool in one corner of the tub, and from there it slips past the door seal. Turn the leveling legs until it sits even front to back and side to side.
What's different in the Phoenix area
Inlet screens clog fast on Valley water
The small mesh screens where the hoses meet the machine catch sediment and scale. With local water hardness, a screen can block enough within a few years to trigger a fill error. Cleaning them is a common fix here.
Common questions about appliance repair in Phoenix
How do I reset the LC code on a Samsung dishwasher?
Turn the dishwasher breaker off for a few minutes, then back on, since most of these models aren't plugged into an easy-to-reach outlet. The code only clears if the sensor is dry. If it returns the second the panel lights up, there's still water in the pan.
Can I just unplug the leak sensor to stop the code?
No. That sensor is what catches a real leak before it gets into your flooring and cabinet bases, and disabling it can turn a slow drip into a very expensive weekend. If the code keeps returning, get the leak found.
There is no water on my floor, so why is it showing LC?
The pan and the sensor sit underneath the tub, so a slow drip or heavy condensation collects there and never reaches your kitchen floor. Samsung says the detector can react to just a few teaspoons of water.
Is this covered under warranty?
Samsung dishwashers come with a limited manufacturer warranty, usually one year covering parts and labor, with longer terms on certain components. Look up your purchase date and model number. If you're past that window, a local repair company can take it from there.
Will the dishwasher run at all with the LC code showing?
Usually no. The control locks out the cycle and often keeps the drain pump running until the sensor dries off. That's why the machine seems to fire itself back up after you press cancel.
Still showing the problem after the checks?
Call and describe what you tried. A local company can tell you what a visit involves.