Samsung Dishwasher Leaking: Causes and Fixes

Quick Answer

Samsung dishwasher leaking: check where the water appears to determine the source. Front leak = door gasket or spray arm seal. Bottom leak = pump seal or cracked tub. Side leak = inlet water connection. The most common cause on Samsung models is door seal or gasket torn or displaced.

Samsung puts their main control board way lower than most brands, basically right above the floor pan. A slow drip can fry that board before you even notice there's a problem. Don't sit on this one. I've seen a $15 door seal job turn into an $800 control board replacement because the homeowner waited two weeks to call. Find the source fast and fix it.

SamsungDishwasherSeverity: moderateDifficulty: intermediate75% DIY Success

Time to Fix

15–90 min

Difficulty

intermediate

Parts Cost

$0 (no parts needed)

Tools Needed

Phillips #2 screwdriver, Flathead screwdriver

Samsung Dishwasher Leaking: Causes and Fixes

OK so Samsung dishwashers have some specific leak points that aren't obvious until you know what to look for. The Water Wall models have their own quirks with that rail system, but honestly even the standard Samsung units have some design choices that create problems. The most common thing I see is a split spray arm shooting water directly at the door seal, and the homeowner's been blaming the gasket for months when the gasket is actually fine.

Most Likely Causes

Based on aggregated repair data, here is the probability breakdown for this error code:

Door seal or gasket torn or displaced40%

Overfill from stuck-open inlet valve24%

Drain hose connection loose at pump or drain14%

Tub seal leaking at drum shaft12%

Pump housing cracked10%

Symptoms You May Notice

A puddle sitting on the floor directly under the front of the unit after the cycle finishes, sometimes just a few tablespoons, sometimes a full cup or more depending on how bad the seal is.
Water visible under the kickplate while the machine is still mid-cycle, which you'd only catch if you crouched down and looked with a flashlight.
Warped or discolored flooring or cabinet base on one side of the dishwasher, which usually means the leak's been going on way longer than you realized.
LC or 4C error code showing up on the display after a cycle, meaning the overflow sensor in the base tray got wet enough to trip.
Dishes coming out dirtier than usual on the bottom rack, because a cracked spray arm is losing pressure instead of actually cleaning anything.

Can you reset a Samsung dishwasher to clear the LEAKING code?

If your leak sensor triggered an LC or LE code, a simple power cycle won't fix it. You need to tilt the unit slightly to drain the overflow tray, then dry the sensor with a hairdryer. Once the sensor is bone dry, unplug the unit for five minutes to clear the memory. If the tray fills again, you have an active leak.

Tools Required for Diagnosis

Phillips #2 screwdriverFlathead screwdriverFlashlightMultimeterNeedle-nose pliersBucket and old towelsHairdryer (for drying base tray sensor)

Diagnostic Checklist

Follow these steps in order. We start with the easiest external fixes before opening up the machine.

Frequently Asked Questions

How much does it cost to fix a Samsung dishwasher leaking?

Expect to pay between $150 and $400 for a pro repair. If it's just a door seal or a spray arm, you can grab the parts for $50 to $90 and swap them yourself in twenty minutes. But if the sump assembly or the main pump is cracked, the part alone can hit $200, and the labor's more intensive because the whole unit usually has to come out to reach the bottom components. Get a diagnosis first before you commit to anything.

Is it worth repairing a Samsung dishwasher leaking?

If your Samsung is under five years old, yeah it's almost always worth fixing. These machines cost $700 to $1200 new, so even a $200 repair pencils out. But if the leak's been going on long enough to damage your kitchen flooring, or if the tub itself is cracked, it's probably time to go shopping. Once the stainless tub's integrity is gone, the machine's basically a total loss. And if you've already paid for floor repairs, factor that into the math too.

Can I fix Samsung dishwasher leaking myself?

Most Samsung leaks are totally DIY-friendly. Replacing a door gasket or a spray arm needs no special tools at all, you just pull the old one out and snap the new one in. If you have to get under the unit to swap a drain pump, you'll need a screwdriver and some pliers and maybe 45 minutes. Just shut off the water supply valve under the sink before you disconnect any hoses, because skipping that step will absolutely flood your kitchen.

Why does my Samsung dishwasher leak only sometimes?

Intermittent leaks are usually one of two things. Either you've got a crack in the spray arm that only fires toward the door seal at certain pressure points during the cycle, or your detergent's creating suds that overflow past the gasket but only when the water's hotter than usual. Try running a cycle with the kickplate off and a flashlight pointed in there so you can watch it mid-cycle. If it only happens on the heavy or sanitize cycle, it's almost definitely a spray arm or detergent issue.

What's the LC error code on my Samsung dishwasher and how do I clear it?

LC means the leak sensor in the base tray got wet. That tray sits at the very bottom of the unit and catches any water that escapes the wash area. Once it fills up enough, it kills the cycle and throws LC on the display. Here's the thing though, the sensor stays wet even after you fix the actual leak. You've got to tilt the unit slightly to drain that tray, then dry the sensor with a hairdryer for a few minutes. Unplug it for five minutes after that to reset the memory. If LC comes right back after a cycle, you've still got an active leak somewhere.

Same Fix Works on These Brands

Samsung shares the same hardware platform with these brands. The diagnosis and repair steps are identical.

Samsung washerSamsung Washer 3C2 Error Code: Motor Stall Samsung washerSamsung Washer 3E Error Code: Motor Fault Samsung washerSamsung Washer 4E Error Code: Water Supply Fault (Top Load)Samsung washerSamsung Washer 5C Error Code: Drain Error (Older Display)Samsung washerSamsung Washer 8C Error Code: Vibration Sensor Fault Samsung washerSamsung Washer 8E Error Code: Motor Frequency Sensor Fault

Models Known to Experience LEAKING Errors

This repair applies to most Samsung dishwashers with this error code. Common model numbers include:

DW80R5061US, DW80R9950US, DW80K5050US, DW80T5040US, DW80B6060US, DW80CG5451US, DW80H9970MS

Written by

Mike Sullivan

Lead Appliance Repair Technician · 20 years experience

Last verified for technical accuracy on March 15, 2026