The short answer
A leaking AVDWEH machine is usually leaking from a joint you can see, not from the tub. On a built-in half of the joints that can leak are under the sink rather than in the machine. The single most useful thing you can do is note when in the cycle the water appears, because that alone narrows it to one of three causes. There is one number under the AVDWEH label in the table below, so nothing here depends on which variant you own.
What you observe on these models
- A line of water on the floor directly under the door — Door gasket or door alignment.
- Water appears only at the end of the cycle — That points at the drain side of the machine.
- Water at the tap rather than at the machine — The coupler, which is the first suspect on a portable.
- Spray that stops the instant the cycle pauses — A pressurised joint, not a tub leak.
- NEAR MISS — a wet floor with foam in it — Detergent, not a fault.
Causes, most likely first on the AVDWEH family
- The door gasket and the door alignment — First on this platform: water at the front, across the floor in a line under the door, is a gasket or a door that has stopped closing square, and both are visible without a tool.
- Overfilling from a failed float or inlet valve — Second: a machine that keeps filling puts water over the door lip, and the tell is that the leak only happens during the fill rather than throughout the cycle.
- Suds from the wrong detergent — Third: hand detergent or dish soap in the dispenser foams over the door seal, and it leaves a leak with no fault behind it.
- The faucet coupler and its hoses — Fourth: the coupler carries mains pressure for the whole cycle, it is connected by hand each time, and a worn washer or a coupler not clicked fully home sprays at the tap rather than at the machine.
- The quick-connect at the back of the machine — Last: same argument: a handled connection fails before a permanent one.
Check in this order, and why that order
- Work out when in the cycle the water appears — During the fill points at overfill; throughout points at the door or a hose; at the end points at the drain.
- Run a finger round the door gasket looking for hard, flattened or torn sections — A gasket that has taken a set is visible and it is the commonest leak on a built-in.
- Dry the floor under the sink and run a cycle while watching the connections — Half of dishwasher leaks are not in the dishwasher.
- Look for foam behind the door glass or at the vent — Suds are a detergent fault, not a machine fault.
- Draw the machine out and look at the floor of its space — Water there with a dry kitchen floor points at the pump or the tub and at a technician.
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. Treat that as the first step of every check below that involves a panel, a grille or a cover.
Models in the AVDWEH family — The numbers this page covers.
Reference| Model number | Family key |
|---|---|
| AVDWEH18W3S | avanti:dishwasher:avdweh |
When to call a technician
A gasket, a coupler washer and a connection under the sink are all owner jobs. On these models the line falls at the drain pump, the door switch and the control board. Call without working through anything at all for water arriving from under the machine with every visible joint dry.
Nearest pages of this class
Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
