The short answer
The Blomberg DWDT dishwashers handle this fault differently from the brand as a whole, because of where this platform puts the components involved and how they are reached. A dishwasher leak is dangerous out of proportion to its size, because the machine sits under a worktop where the water is invisible until it has done damage. Anything behind the kickplate that is not obvious is where the owner side of this ends.
What you observe on these models
- Drips from the door only at the end of a cycle — Condensation on the door liner rather than a leak, in many cases.
- Steam escaping around the door during the cycle — The seal is not making contact, which is the stage before it leaks.
- Foam or suds visible around the door edge — Detergent, not a mechanical fault.
- NEAR MISS — dishes are wet and the floor is dry — That is drying performance, which is a different subject entirely.
Causes, most likely first on this family
- Overfilling, or a float switch not working — Fifth: a machine that takes on more water than the tub is designed to hold will push it out at the door, and the float switch exists to prevent exactly that.
- Drain hose connection loose or split — Fourth, and it is identified by timing — water at one specific point in the cycle and never otherwise.
- Supply connection or inlet valve weeping — Third, because under a worktop a slow weep can run for months before anyone sees standing water.
- Why this order is not the brand-generic order — Because the layout differs. On these models the first check is chosen for what it eliminates per minute of work rather than for its standalone probability, and that is what separates a family-level ranking from a brand-level one.
Check in this order, and why
- Run a finger along the whole door seal — Look for splits, a perished edge, debris trapped underneath, or a section that has come out of its channel.
- Dry everything and lay paper down before running a cycle — Paper shows you where the first drop lands, which a wet floor cannot.
- Ask what detergent was used — Hand dishwashing liquid, or a heavy overdose of powder, produces suds that carry water out of a machine with nothing wrong with it.
- What the family layout dictates here — On these models the components involved are not equally accessible, and the order reflects that. Working it as written means you reach a conclusion with the least disassembly, which matters more on this platform than on a machine where everything is behind one panel.
Before you open anything
Safety
Switch off at the spur and close the supply valve first. Water and mains wiring are inches apart in this appliance, and a wet hand behind the kickplate of a live machine is the hazard to avoid.
When to call a technician
If everything reachable with the machine isolated is clean and it still misbehaves, that is the call — and a leak of unknown origin under a worktop should be a call the same day rather than the next weekend.
Other faults covered for this family
Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
