The short answer
On an ADFS dishwasher the usual explanation for water that will not drain is the drain path rather than the pump: a filter full of soil, a hose without a high loop, or a disposer knockout plug still in place all stop the water leaving while the pump works perfectly. Work the order below rather than the order of expense: the two cheapest checks settle most of these before a tool comes out.
What you actually observe
- Standing water in the sump at the end of every cycle — Water arrived and did not leave, which is the whole of this fault.
- Water backs up into the sink when the machine drains — A shared drain restriction rather than an appliance fault.
- Dirty water is left in the bottom and the dishes are gritty too — Soil is being recirculated because the filter and sump are loaded.
- Water is on the floor instead of in the sump — NEAR MISS: read the leak page for this machine, not this one.
- Body: The ADFS listings carry a masked suffix in the spine, so the trailing characters on your rating plate will differ from the table without changing the diagnosis.
Causes, most likely first on the ADFS platform
- 1. Soil sitting where the water has to leave — The filter catches everything the wash lifts off the dishes. Full, it stops the water reaching the drain pump at the rate the pump expects, and the cycle ends with the sump still wet. It ranks first because a single-listing family has one drain geometry, so where the water goes on ADFS is not a question of which model you own.
- 2. The disposer knockout plug — It is unmistakable once it is suspected: the fault starts on day one of the installation, and no amount of cleaning changes it. Second on ADFS because an installation fault shows from the first cycle, so a machine that once worked properly points above this line first.
- 3. A solid object in the impeller — Glass chips, a peeled-off label and fruit stones are all the right size to stop an impeller.
- 4. The drain check valve — The signature is a machine that is dry at the end of the cycle and wet again hours later.
What to check first on these ADFS models, and why
- 1. Lift out the filter and look at what is under it — The commonest answer, and it costs nothing but a minute.
- 2. Ask whether a disposer was fitted at the same time — If the machine has never drained, this one question is usually the whole diagnosis.
- 3. Listen at the drain step for a hum with no flow — A hum without water is a jam; silence is a different fault.
Before you open anything
Safety
Switch the machine off at its breaker or unplug it before reaching into the sump; a capacitor can hold a charge after the power is off, and a standard household branch circuit is 15 A or 20 A at 120 V. Assume broken glass is in the sump every time, use a cloth, and never bail with a vacuum cleaner that is not rated for water. Where a step below depends on which ADFS listing you own, the table above is the reference; nothing here is written from a model outside it.
Models in the ADFS family — The listings this family covers; it is a family page, not a model page.
Reference| Model number | Family key |
|---|---|
| ADFS2524R** | amana:dishwasher:adfs |
When to call a technician
The line is the pump. Filters, hoses, knockout plugs and the shared waste are owner or plumber territory; an impeller that will not turn or a pump that never runs at all is an appliance technician's job.
The other symptoms 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.
