The short version
Water on the floor at the WQP dishwasher has a small number of sources and each leaves a different trace. Front edge means the door; a pool that appears only during fill means the inlet side; a pool that appears only at drain means the discharge side.
The observable signs on this platform
- Foam at the front edge later in the cycle — Overdosed or wrong detergent, or spilled rinse aid. The foam overwhelms a sound seal, and no part has failed.
- A pool that only appears while the machine fills — Inlet side — the fill hose, its fitting or the valve. Nothing downstream is wet.
- A pool that only appears at the drain step — Discharge side — the drain hose, its clamp or the household connection. Again, nothing else is wet.
- NEAR MISS — the machine also will not drain — A machine that leaks and holds water is overfilling or backing up, which is a drainage fault first.
Causes, most likely first on the WQP family
- Door gasket deformed, dirty or out of its channel — First on this family. The gasket takes a set where the door presses hardest, collects debris along its lower run, and can be pushed out of its channel by loading.
- Detergent or rinse-aid overdosing producing foam — Second, and free to eliminate. Foam climbs past a seal that water would not, and the leak looks identical from the floor.
- Fill or drain hose fitting loose, split or badly clamped — Third. Hoses are disturbed by every cabinet job and every appliance push-back, and a fitting that is merely weeping will only show during its own part of the cycle.
- Overfilling from a stuck float or a valve that will not close — Fourth. The tub is not leaking; it is being asked to hold more than it can, and the surplus leaves past the door.
The order to work in, and the reason for it
- 1. Run one cycle with dry paper under the front and both sides — Watch for which part of the cycle wets which piece of paper.
- 2. Run a cycle with no detergent at all — If the leak disappears, it was foam and the gasket is fine. Skipping this step is how sound gaskets get replaced.
- 3. Inspect the gasket along its whole run with the door open — Feel for a flat spot, look for debris in the channel and check the gasket has not been pushed out of its groove at the lower corners.
Safety first
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 near a powered appliance is the real hazard here: dry it before you kneel, and if water has reached a receptacle or a lead, switch the circuit off at the panel first.
Models in the WQP family — The model numbers this page covers.
Reference| Model number | Family key |
|---|---|
| WQP12-77E1B-US | bertazzoni:dishwasher:wqp |
| WQP8-7740-US | bertazzoni:dishwasher:wqp |
When to call a technician
Call when the gasket is sound, detergent is eliminated and every accessible fitting is dry under load, because what remains is the sump, the pump seal or the tub itself and all of those need the machine out and the lower access open. Call immediately if water is present when the machine has not run, since that is a pressurised supply leak and it will not wait for an appointment. Gasket cleaning, dosing corrections and hose-clamp checks are all owner work here.
Other problems covered for the WQP family
Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
