The short answer
On a Uniique dishwasher, most dishwasher leaks are the door, the dose or a hose clip, in that order, and all three are visible without tools. The important first move is to find out whether the water is arriving from the door face or from underneath, because those are two different jobs. On a bought-in platform the door, the latch and the control are the parts the badge does not change, so they lead.
What you are actually seeing
- Water in the tray under the machine — A slow leak that has been running for a while.
- The floor is wet only after the drain part of the cycle — The drain hose or its connection, not the tub.
- A puddle emerging from under the machine with a dry door — Plumbing under the tub.
- NEAR MISS — water standing inside the tub — That is a drainage fault and it has its own page.
Causes, most likely first on this dishwasher
- Too much detergent or the wrong product, so foam escapes past the seal — Ranked first on Uniique: value platforms have less freeboard above the wash line, so a sudsy load reaches the door seal sooner. On this one, remember that the door, the latch and the control are what the badge does not change, so they come first.
- Water escaping at the door rather than from underneath — Second: the seal is a press-fit strip that hardens with heat and detergent, and once it hardens it stops following the door.
- A spray arm fouling on a tall item, throwing water at the door seal — Third: a tray or a tall handle that stops the upper arm turning puts a jet straight at the door, and it only leaks on the loads that do it.
- A leak at the pump housing under the tub — Ranked last here, deliberately: it is a genuine repair, it needs the machine out and the power off, and everything above it is cheaper and commoner.
Check in this order, and why
- First — note whether the leak happens on every cycle or only on some — A leak that comes and goes with what is in the machine is a dosing fault, not a seal fault.
- Then — look at where the water starts — down the door face, or from underneath — It splits the whole page in two, and it takes one cycle to observe.
- Third — spin each spray arm by hand with the racks loaded as usual — An arm that touches anything is being stopped mid-cycle, and that is where the water goes.
- Only then — only once the door, the dose and the visible fittings are all cleared — A pump seal cannot be seen without moving the machine, so it goes last, which is why it comes after everything above it.
What an owner can safely check
- Run a rinse cycle with no detergent and watch — If a bare rinse stays dry, the fault is what you are dosing or a rinse aid setting, not the machine.
About 40 min
- Spin both spray arms by hand with the racks loaded — Reload anything they touch. Check the arm holes are clear while you are there.
About 10 min
- STOP here if the next thing to check is behind a fixed panel — Everything above can be done without tools on live parts. Past this point it is a technician job.
Before you open anything
Safety
Switch the machine off at its breaker before mopping underneath it or pulling it out, and keep the power off while the floor is wet. Water in the base tray will have tripped an anti-flood device on many machines — that device is doing its job and resetting it repeatedly is not a repair. Wash water is hot enough to scald, so let a cycle finish and cool before you open up. Lift the floor covering and look underneath if the leak has been running for days.
When it stops being an owner job
Call once the door seal, the detergent dose, the loading and the visible fittings are all cleared and water is still arriving. A pump or tub seal needs the machine out and the power off. Call immediately if the machine trips a breaker or protective device, if water is reaching an electrical connection, or if the floor covering under the machine is lifting: a slow leak under a cabinet does more damage to the kitchen than to the machine.
Nearest pages of this class
What this page does not cover
This page is written for the Uniique dishwasher as a class, not for one family or one model line. Where a family-specific page exists for your unit it is linked above and it is the more specific answer. Deliberately not here: part numbers, wiring colours, torque figures and any measured value, all of which differ by family.
Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
