Amana ADB1400AMS / ADB1400AGS front-control dishwasher: quick sheet

Covers: Amana 24 in front-control built-in dishwashers with Triple Filter Wash System and plastic tub: ADB1400AMS (stainless look), ADB1400AMW (white), ADB1400AMB (black), and the earlier ADB1400AG* (ADB1400AGS / AGW, revisions -0 and -1). Search terms: ADB1400, ADB1400AMS, ADB1400AGS.

Cross-checkedBrands: Amana7 components

Whirlpool Corporation's entry-level builder and rental dishwasher: 12 place settings, two racks, two spray arms, three cycles, heated dry, a three-stage filter cleaned by hand and a plastic tub. It shares Whirlpool-family parts (for example the drain pump that parts sites list for both the AG and AM revisions). Expect simple drain, fill and leak calls; use the tech sheet for its fault-light pattern.

Safety first

Breaker off before panels.
Water off before valve work.
Let the element cool.
Never bypass the float switch.

How it works

Timed fill through the inlet valve; float switch as overfill guard.

One wash motor drives two spray arms (lower and middle/upper).

Three-stage filter in the tub floor traps soil; it is not self-cleaning.

Heated dry with an element on the tub floor.

Components & tests

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Official manufacturer documentation

Always confirm values against the tech sheet for the exact model.

OnCall Tech is a reference tool for trained technicians and can make mistakes. Always disconnect power and confirm with the manufacturer's documentation before you work. © 2026 OnCall Tech. Original content; not a reproduction of any manufacturer document.Generic part photos (not of this brand): Large stainless refrigerator set flush between kitchen cabinets by Alex Qian, Pexels License

Diagnostic guides for this appliance

Guide · Dishwasher

Dishwasher detergent dispenser won't open (detergent left in the cup)

First rule out blocking dishes, caked detergent and an unfinished cycle. Then test the dispenser actuator (a wax motor or bimetal/solenoid on most units) for an open circuit, and check whether the control sends 120 V to it during the wash. A cup that opens but leaves detergent behind is a wash problem, not a dispenser problem.

8 steps ~45 minmoderate

Guide · Dishwasher

Gritty or sandy residue on dishes after washing

Grit is usually redeposited soil: a clogged filter, a drain that cannot clear (air gap, disposer, hose) or detergent that did not dissolve. Hard water causes white film rather than grit. Work from the filter outward, then check the drain path and the wash motor.

8 steps ~30 mineasy

Guide · Dishwasher

Dishwasher completely dead: no lights, no response (supply, door switch, thermal fuse)

Prove supply voltage at the junction box with a meter before blaming any part. Then check the door switch circuit and, on units that have one, the one-time thermal fuse near the control. Replace the control board only after these pass.

8 steps ~45 minmoderate

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Maytag 24 in front-control (full console) MDB4949SK* built-in dishwashers with stainless tub and Dual Power Filtration (Z = fingerprint-resistant stainless; B/W color variants). Whirlpool-built electronic platform.

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