The short answer
A Kenmore dishwasher that leaks is more often foaming than failing: the wrong detergent, or washing-up liquid used by mistake, makes suds that climb out past the door seal. Rule that out before you suspect the tub. The door gasket is the next answer, and both are cheap. Before any part is ordered, read the rating plate: the badge on the door does not identify the platform behind it.
What you observe
- Foam at the door edge — A detergent problem, not a seal problem.
- Water under the machine but the door edge is dry — A hose, a fitting or a pump seal rather than the door.
- NEAR MISS — water standing inside the tub — That is a drainage fault and belongs on the drainage page.
Causes, most likely first on a Kenmore dishwasher
- Detergent foam climbing out — Id: suds — Washing-up liquid, too much detergent, or a rinse-aid overdose makes foam the machine cannot contain, and it escapes at the door. First here because it is free to prove and it is what a surprising share of leak calls turn out to be.
- Door gasket hardened, dirty or displaced — Id: doorgasket — Second: the gasket seals a moving joint under pressure. Hard, greasy or pushed out of its channel, it lets water past at the point where the spray hits hardest.
- Inlet or drain hose fittings weeping — Id: hoses — Third: the connections under the sink and behind the kickplate weep long before they burst, so the first sign is a damp patch rather than a flood.
- Pump or tub seal — Id: pumpseal — Last, and the reason the order matters: a seal that has worn puts water under the machine during the wash rather than at the door. It is the least common cause and it is not an owner repair.
Check in this order, and why
- Open the door mid-cycle and look for foam — Foam rather than water names the cause instantly. First because it is the top-ranked cause above and costs nothing.
- Run a finger round the gasket and look for grease and gaps — It should be soft, clean and seated all the way round. Second because its cause ranks second above.
- Dry every fitting, run a cycle and feel them again — A damp fitting after a dry start is the leak. Third because its cause ranks third above.
What an owner can safely check
- Lay paper towel across the floor and run a short cycle — Where it wets first tells you whether the water comes from the door or from underneath.
Tools: paper towelAbout 30 min
- Photograph the rating plate before calling anyone — The full model number decides which parts fit; the badge on the door does not.
About 5 min
- Clean the door gasket and the door edge, then re-run — Grease on a gasket breaks the seal as effectively as a tear does.
Tools: clothAbout 15 min
- Run one cycle with no detergent at all — If the leak disappears, it was foam, and the fix is the detergent rather than the machine.
About 40 min
- STOP HERE if the next step needs the machine pulled out or a panel off — Pump seals and tub seals behind a live panel are a service call.
Before you open anything
Safety
Water on a kitchen floor next to a live appliance is a shock risk before it is a repair: switch the machine off at its breaker before mopping underneath it, and never reach behind a wet panel with the power on. Close the supply valve before touching any water fitting, and dry the floor properly — a wet floor under a cabinet rots the carcass long before anyone notices.
When to call a technician
Call when the gasket is clean and sound, the detergent is ruled out, the fittings are dry and water still appears — at that point it is a tub or pump seal, which means the machine comes out. Call immediately if water is reaching a socket or running under cabinetry, because the damage outruns the repair. Parts are ordered against the full model number including its prefix, because the same badge covers more than one platform and the platforms do not share components.
Nearest pages of this class
What this page does not cover
This page covers Kenmore dishwashers as a class, not one family or model line. Where a family- or model-specific page exists for your unit, that page is the more specific answer. Not here: gasket part numbers, fitting sizes and torque figures. It is a retail house brand: the machine in front of you was built by one of several manufacturers, and which one it was is decided by the prefix of the model number on the rating plate.
Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
