KitchenAid Dishwasher Cycle Resetting Mid-Wash:... | appliancefaults.com

Technical Background:

The dishwasher's Main Control Unit (MCU) governs the entire wash cycle. It relies on consistent voltage inputs from various sensors and components like the door switch, heating element, turbidity sensor, and water inlet valve. Interruptions in voltage, either due to faulty components or power supply issues, can cause the MCU to reset the cycle.

Symptoms:

The KitchenAid dishwasher starts a cycle normally, but then resets back to the beginning mid-wash, typically after the wash cycle has begun. The user observes this happening repeatedly, rendering the dishwasher unusable.

Possible Causes:

Intermittent power supply to the dishwasher.
Faulty door switch or latch.
Overheating issue within the control board.
Defective heating element causing control board errors.
Issue with the turbidity sensor failing to read soil levels.
Water inlet valve malfunction.

Solution:

1

Disconnect power to the dishwasher at the breaker panel. Verify 120V AC is OFF using a multimeter.
2

Inspect the door switch for damage or loose wiring. Use a multimeter to test the switch for continuity when the door is closed. It should read near 0 ohms when closed.
3

Check the incoming power supply to the dishwasher at the junction box, using a multimeter verify 120V AC.
4

Access the control board (MCU). Look for burnt components or water damage.
5

Test the heating element for continuity. A typical element should read between 15-25 ohms.
6

Inspect the water inlet valve for proper operation. Check for 120V AC when the dishwasher is calling for water.
7

Examine the turbidity sensor for any visible damage or debris. Clean the sensor and retest the dishwasher.

Safety Warning:

Always disconnect power to the dishwasher at the breaker panel before attempting any repairs. Lock Out / Tag Out (LOTO) procedures must be followed. High voltage is present within the appliance, posing a risk of electrical shock.

Prevention:

Run a dishwasher cleaner cycle monthly using a dedicated dishwasher cleaner. Regularly inspect and clean the spray arms to prevent clogging. Check the filter at the bottom of the dishwasher for food debris and clean it as needed.

Expert Tip:

Many KitchenAid dishwashers have a diagnostic mode. To access it, press the 'High Temp Scrub' 'Heated Dry' 'High Temp Scrub' 'Heated Dry' buttons in sequence within 6 seconds while the dishwasher is in standby. This may reveal error codes stored in the MCU's memory.

Frequently Asked Questions

•How do I access the control board on my KitchenAid dishwasher?

Typically, you need to remove the outer door panel by unscrewing the screws along the inner door edge. The control board is usually located at the top of the door, behind the control panel.

•What is a normal resistance reading for a dishwasher heating element?

A typical dishwasher heating element should read between 15-25 ohms. A reading of infinity indicates an open circuit, meaning the element is faulty.

•Where is the turbidity sensor located in my dishwasher, and how do I clean it?

The turbidity sensor is often located at the bottom of the dishwasher tub, near the sump area. To clean it, gently wipe it with a soft cloth to remove any accumulated debris or film.

KitchenAid Dishwasher Cycle Resetting Mid-Wash: Troubleshooting Guide

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•How do I access the control board on my KitchenAid dishwasher?

•What is a normal resistance reading for a dishwasher heating element?

•Where is the turbidity sensor located in my dishwasher, and how do I clean it?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: