What does Samsung Dishwasher Leaking - Causes & Fix mean?

Most Samsung dishwasher leaks come from a worn door gasket or loose hose connection. Inspect the door seal and all hose fittings first.

How do I fix Samsung Dishwasher Leaking - Causes & Fix?

Follow the step-by-step diagnosis below. The most likely fix is identified by checking power, sensor resistance, and control-board signals in order — using a multimeter and the part numbers documented in the parts reference table.

Can I keep running the equipment with this fault active?

Generally no. Faults on Appliance units are emitted when a sensor, safety, or control circuit is outside its operating envelope. Running through an active fault risks compressor, heater, or control-board damage. Diagnose and clear the fault first.

What part is most commonly replaced for Samsung Dishwasher Leaking - Causes & Fix?

The most frequently replaced parts for Samsung Dishwasher Leaking - Causes & Fix are listed in the Parts Reference section of this guide with OEM part numbers and typical price ranges. Check the table for direct replacements.

Is Samsung Dishwasher Leaking - Causes & Fix a DIY repair or do I need a technician?

Sensor swaps, fan motor replacements, and condenser cleaning are typical DIY-level repairs. Anything involving refrigerant, gas, or high-voltage (>240V) work requires a licensed technician for both safety and code-compliance reasons.

Samsung Dishwasher Leaking - Causes & Fix

Samsung Dishwasher Leaking — What’s Happening

When your Samsung dishwasher leaks, water escapes from the machine during or after a cycle. The leak usually appears as puddles on the floor near the door, under the unit, or around the supply and drain connections. Samsung dishwashers have a leak sensor in the base pan that detects moisture and may trigger an LC or LE error code, sometimes causing the machine to turn on and drain continuously until the water is cleared.

The leak happens because water is escaping from a component that should be sealed or contained. Common sources include the rubber door gasket, hose connections, spray arms directing water where it shouldn’t go, or cracks in internal seals and the tub itself. Over-sudsing from the wrong detergent or too much detergent can also push water out past the door seal.

Jump to Fix

Most Likely Causes

Worn or dirty door gasket The rubber seal around the door develops cracks, tears, or gets coated with detergent residue and food particles that prevent a watertight seal, allowing water to seep out during the wash cycle.
Loose or damaged water supply hose The supply hose connection at the wall or dishwasher inlet can loosen over time or develop cracks in the hose itself, causing water to drip or spray during fill.
Drain hose leak or poor routing The drain hose can crack, split at clamp points, or be routed incorrectly so water backs up and overflows, especially if the hose loop is too low or connections are loose.
Excess detergent or wrong detergent type Using regular dish soap, too much detergent, or non-dishwasher detergent creates excessive suds that push water out past the door seal and onto the floor.
Clogged or damaged spray arm nozzles Blocked jets or a cracked spray arm can misdirect water jets upward or sideways against the door or tub edges, forcing water past seals or out the door.
Overfill from faulty inlet valve or float A stuck-open inlet valve or malfunctioning float allows too much water into the tub, which then overflows out the door or into the base pan.
Pump seal or sump cracks Internal seals around the pump assembly or cracks in the sump and base pan let water leak underneath the dishwasher, where it pools and triggers the leak sensor.

How to Diagnose and Fix

Turn off power to the dishwasher at the circuit breaker before inspecting or touching any components if you see water or an LC/LE code on the display.
Pull the dishwasher forward and check under and behind the unit for visible water, paying close attention to the water supply hose, drain hose, and all connection points at both ends.
Inspect the door gasket all the way around the tub opening for cracks, tears, gaps, or buildup of detergent and food debris that would prevent a tight seal.
Run a short test cycle and watch for the exact point where water appears, looking at the door edges, hose fittings, and underneath the unit during fill and wash phases.
Remove and clean the spray arms and nozzles, checking for clogs or cracks, and make sure they spin freely and are seated correctly on their mounts.
Check the detergent dispenser and verify you are using only automatic dishwasher detergent in the correct amount (usually one to two tablespoons or one pod, not regular dish soap).
Measure the tub opening width at the screw line to confirm it is exactly 22 inches. If it is wider, the cabinet may be pinching the tub and distorting the door seal. Loosen cabinet mounting screws slightly to relieve pressure.
Dry the base pan and sensor area completely with towels, then run another test cycle to see if the leak or code returns and confirm the source.

Parts You Might Need

Part	Notes
Samsung dishwasher door gasket	Amazon \| Verify your model number before ordering to get the correct seal profile and length.
Dishwasher water supply hose	Amazon \| Universal braided stainless hoses with 3/8-inch compression fittings work for most models.
Samsung dishwasher drain hose	Amazon \| Match the diameter (usually 1 inch) and length to your installation.

If your appliance also shows a code on the display, these match this problem:

When to Call a Pro

Call a technician if the leak continues after you have checked and cleaned the door gasket, hoses, and spray arms, or if you find water pooling under the machine with no obvious external source. Internal leaks from the pump seal, sump cracks, or a failed inlet valve require disassembly and parts replacement that most homeowners should not attempt. Also call for service if the dishwasher shows an LC or LE code that returns immediately after you dry the base pan and no visible leak is present, since the sensor or internal plumbing may need professional diagnosis and repair.