Symptoms
- Puddle appears under the unit hours after the last cycle
- Cabinet base near the dishwasher feels damp
- Water present even though the door was never opened
- Musty smell developing under or beside the unit
Likely causes
- CommonLoose hose clamp or fittingVibration over time can loosen clamps at the water inlet or drain hose connections.
- PossibleCondensation dripping from the tubSome models can drip condensation after a hot cycle, which can look like a leak.
- PossibleCracked sump or tub baseAge and stress can crack the plastic base, causing a slow, persistent leak.
- PossibleWorn door gasket allowing slow seepageEven without visible spraying, a hardened gasket can let a slow trickle escape.
What to do
- Unplug the dishwasher and carefully pull it out to inspect the hoses and connections underneath.
- Check all hose clamps and fittings for tightness and any visible cracking in the hose material.
- Run a cycle while watching underneath (with power path clear of water) to see exactly when and where the leak starts.
- Check the door gasket for hardened or cracked sections that could let water seep slowly.
- Inspect the plastic tub base for hairline cracks, especially near the sump area.
- If you find a cracked tub or sump, this typically isn't a DIY repair and the unit may need replacement rather than repair.
Tools and parts
- Flashlight
- Towels
Dishwasher hose clampSearch: “dishwasher hose clamp replacement”
When to call a pro
If the tub or sump itself is cracked, have a technician assess whether repair is cost-effective versus replacing the dishwasher.
Safety
Use caution
Keep the area dry and unplug the unit before inspecting to avoid any water-electrical contact.