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Thumping sound

Thumping sound — Items interfering with wash arms

KitchenAid · Dishwashers

What does Thumping sound mean?

A thumping sound during a cycle indicates that dishes or other items are extending beyond the dishwasher racks and hitting the wash arms. This prevents proper washing and can damage dishes.

Common Causes

  • Improper loading of dishware.
  • Items extending beyond the racks and interfering with wash arms.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Open the dishwasher door slightly to pause the cycle.

  2. 2

    Wait for the spraying action to stop, then open the door completely.

  3. 3

    Readjust the dishware to ensure no items extend beyond the racks and interfere with the wash arms.

  4. 4

    Press the START/RESUME button and close the door firmly to resume the cycle.

Browse all codes in this manual (19)
Verified technical data. Last updated: April 2026

Related Faults

Blinking LEDs (Pause/Interrupted)Blinking LEDs (Start/Resume, Cycle Status) — Cycle paused or interruptedClean LED not on / No waterClean LED not on and cycle ends — Dishwasher did not fill with waterClean/Complete LED blinks 4 timesClean/Complete LED blinks 4 times with pause — Error detected, controls locked
Source: KitchenAid Dishwashers
Open Manual (Page 19)Search more codes in this manual