The short answer
Poor cleaning or drying on an ADB dishwasher usually comes down to how the load was stacked and what came off it: a tall item blocking the upper arm removes an entire rack from the wash while the cycle behaves exactly as designed. The order that follows puts the likeliest and cheapest causes first, and it is the order worth working in rather than starting with the part that sounds most serious.
What you actually observe
- A gritty deposit on the inside of cups and bowls — Soil is being recirculated rather than filtered out and drained away.
- Detergent left undissolved in the dispenser — The dispenser did not open, or there was no hot water at the moment it did.
- Grit or film left on items in the upper rack only — The upper arm is not getting water at pressure, or something is blocking its sweep.
- Standing water in the bottom at the end of the cycle — NEAR MISS: that is a drainage fault, and it deserves the drainage page rather than this one.
- Body: Where a step below depends on which ADB listing you own, the table above is the reference; nothing here is written from a model outside it.
What causes it on the ADB platform, in likelihood order
- 1. A filter that has not been cleaned — These machines filter soil out and hold it until someone removes it. It ranks first because a single-listing family has one drain geometry, so where the water goes on ADB is not a question of which model you own.
- 2. Incoming water temperature — Running the kitchen tap hot before starting the machine is not a superstition; it is how the first fill gets hot water instead of the contents of the pipe. Second on ADB because the part above it fails more often and is cheaper to prove.
- 3. Spray arms that cannot spray — Each jet is small enough to be closed by a seed, a chip of glass or scale. A partly blocked arm still turns, so it sounds right, and it leaves an arc of the rack untouched every cycle.
- 4. Fill volume and the inlet screen — The tell is a machine that sounds thin or surges during the wash rather than holding a steady note.
The order to work in on this platform
- 1. Pull the filter out and look at it before anything else — The commonest cause, no tools, and it changes the meaning of everything downstream.
- 2. Run the kitchen tap until it is hot before starting a cycle — Separates a detergent-temperature problem from a machine problem in one wash.
- 3. Remove each arm and hold it up to the light — A partly blocked arm still turns, so it cannot be judged by sound.
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, which is more than enough to be dangerous in a wet cabinet. Broken glass hides in the filter and the sump, so use a cloth rather than bare fingers. The ADB roster is a single listing, ADB1300AF**, so everything here applies to one build rather than to a range.
Models in the ADB family — The listings this family covers; it is a family page, not a model page.
Reference| Model number | Family key |
|---|---|
| ADB1300AF** | amama:dishwasher:adb |
When to call a technician
The line is the sump. Filters, arms, loading and detergent are owner work and cost minutes; a worn impeller, a stuck diverter or a heater that never comes on needs a technician and a machine pulled out of the cabinet.
The other symptoms covered for this family
Related pages
Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
