Samsung DW80N3030US Inlet Valve Leak: Shut Off Water and Identify the Source Safely

Use only checks that match the exact appliance or system and its official guide.

1. Check 1

   If water is visible, stop the dishwasher, switch off its circuit breaker and close the dishwasher water-supply shutoff. Wipe up the water so you can tell whether it returns; do not reach into the base or run another cycle while the leak is active.

   Expected result: Water returns after the area is dry, or it does not return and may have been a spill.

   Next step: Keep power and water off for a returning leak and continue only with external source identification. If it does not return, do not replace a part based on the original assumption.

   Why this matters

   Why: A returning wet spot supports a real leak; no recurrence after cleanup does not identify an inlet valve and may mean the original water was a spill.

2. Check 2

   With water and power isolated, inspect the accessible supply hose from the home shutoff to the dishwasher connection for moisture, damage, gaps or a loose fitting. Check both ends and the full visible length without loosening a wet connection.

   Expected result: Moisture is concentrated at a hose end or accessible fitting, the hose itself is damaged, or the visible supply path is dry.

   Next step: Follow the exact DW80N3030US/AA installation guide or use a professional installer for any reconnection or hose replacement. If the visible supply path is dry, do not open the dishwasher to find a valve.

   Why this matters

   Why: Samsung identifies hose connections and the supply hose as a distinct leak source. A wet external connection does not prove that the dishwasher inlet valve body is leaking.

3. Check 3

   Determine whether the wet area is instead at the drain-hose connection, door seal, tub edge, leveling/installation area or a suds condition. Inspect only visible surfaces and do not remove the kick plate or internal water components while the appliance is wet.

   Expected result: The leak is at a drain connection, door/seal area, excessive suds, an installation/leveling condition, or remains unexplained.

   Next step: Correct only a documented external installation or seal issue with power and water isolated. For a damaged seal, internal leak or uncertain source, request Samsung service.

   Why this matters

   Why: Samsung lists these as separate leak paths; the visible location matters and a generic “inlet valve” label cannot be transferred to them.

4. Check 4

   Verify the full rating-label model and suffix against Samsung’s DW80N3030US/AA support record before looking up any component or manual. Note whether a leakage indicator or error appears and whether the leak is continuous or only during fill.

   Expected result: The label matches DW80N3030US/AA, differs from it, or cannot be read; the leakage sensor stops the cycle or no indicator appears.

   Next step: Keep the appliance off and provide the model, leak location, timing and any indicator to Samsung service. Do not order or install a valve from a similar model.

   Why this matters

   Why: The opened product/support pages establish the assigned model and its leakage-sensor feature, but they do not prove which internal valve, hose or control is leaking.