The short answer
Leaks on the Cosmo DG dishwasher family sort themselves by timing as much as by position: a leak during the fill points at the supply side, a leak throughout the wash points at the door or the sump, and a puddle that appears hours later points at a slow connection rather than a cycle fault.
What you see on the DG family
- Water on the floor directly in front of the door — The classic door-seal or levelling pattern. It arrives during the wash rather than at the fill.
- Foam pushing out around the door — Over-sudsing, almost always from hand dish soap or too much detergent in soft water. The machine is fine; the chemistry is not.
- A puddle under the machine with a dry door — Supply side or sump. It means pulling the toe kick to see where it originates, which is where the owner checks end.
- Water appears only on the heavy or hot cycles — Heat expands gaskets and raises pressure. A seal that only leaks hot is still a failing seal.
Causes, most likely first on the DG family
- Fill valve, inlet connection or hose — Ranked first on the DG family — A puddle that grows between cycles rather than during them is supply-side by definition, and that makes this first. The supply connection lives in the cabinet under the sink and the valve sits at the front of the machine behind the toe kick. A weeping compression fitting drips slowly and constantly rather than in step with the cycle.
- Door gasket and door alignment — Second — always near the top: the gasket is visible, cheap and the usual answer when the water lands in front of the door. The gasket hardens and takes a set, and the door drops slightly on its hinges over the years. Either one lets a thin sheet of water past at the bottom corners while the machine sprays.
- Over-sudsing from the wrong detergent — Third — and free to rule out: run one empty cycle with no detergent and see whether the leak repeats. Hand dish soap in the dispenser produces foam the machine cannot contain, and it pushes past the door seal as if the seal had failed. Excess automatic detergent in soft water does the same thing more slowly.
- Sump gasket, pump seal or a cracked hose — Fourth — and the only group on this list that is not an owner repair on this model. The sump assembly seals to the tub with a gasket that ages, and the internal hoses are clamped. A leak here appears under the middle of the machine and only while it is running.
- Body: The order below is this family's rather than the brand's: with one build in the DG family the ranking is not an average diluted by chassis that fail differently, so the cause at the top is the cause that actually leads on DG1-A6301-AM.
Check in this order, and why
- 1. Dry the floor completely and note where the water returns — Front of the door, under the middle, or in the sink cabinet. This one observation removes most of the list.
- 2. Run one cycle with no detergent at all — If the leak disappears, it was suds. This is the cheapest test on the page and it is decisive.
- 3. Check the machine sits level and the door closes square — A cabinet that has settled drops one front corner, and water then finds that corner every cycle.
- Body: Because the DG family is one model, the access route below is the access route — there is no second layout to hedge against, which is exactly what the page above this one has to do.
Before you open anything
Safety
Unplug the appliance or switch off its breaker before removing any panel — a capacitor can hold a charge after the power is off. Water on a kitchen floor next to a live appliance is the hazard here: switch off at the breaker before you kneel down to work, and shut the supply valve under the sink before touching any fitting. Do not run the machine to reproduce a leak while the toe kick is off and the wiring is exposed.
Models in the DG family
Reference| Model number | Family key |
|---|---|
| DG1-A6301-AM | cosmo:dishwasher:dg |
When to call a technician
On the Cosmo DG dishwasher family the owner line is the door and the sink cabinet. Gasket, alignment, levelling, detergent and the visible supply fitting are all yours. Anything that needs the toe kick off is not, and a machine leaking onto a live connection should be switched off at the breaker and left off.
Other DG dishwasher pages
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