KitchenAid Dishwasher Not Washing Dishes: Fix it Now

A KitchenAid dishwasher is crucial for maintaining efficiency and hygiene in a commercial kitchen. Known for its durability and performance, it’s a key component of any restaurant’s operations. However, even the most reliable appliances can face issues, particularly when KitchenAid dishwasher parts fail to perform as expected, causing poor cleaning results. This can lead to unsanitary conditions, wasted time, and frustrated staff. In this article, we’ll explore the common causes behind your KitchenAid dishwasher's failure to wash dishes effectively and provide solutions for troubleshooting and repairing its parts to restore optimal performance.

Common Causes and Fixes for KitchenAid Dishwashers Not Washing Dishes

Here are some common causes and fixes for a KitchenAid dishwasher not washing dishes properly.

1. Check for Blockages in the Spray Arms

The spray arms in a KitchenAid dishwasher are crucial for distributing water and detergent over your dishes. If these spray arms become clogged with food debris, mineral deposits, or grease, they won’t be able to clean the dishes thoroughly.

How to Fix It:

• Step 1: Turn off the dishwasher and unplug it from the power source to ensure safety.

• Step 2: Remove the bottom rack of the dishwasher to access the spray arms.

• Step 3: Inspect the spray arms for any visible blockages such as food debris, mineral deposits, or grease.

• Step 4: Detach the spray arms by unscrewing or unclipping them, depending on the model.

• Step 5: Clean the spray arms thoroughly using a brush and warm soapy water. If necessary, use a toothpick or a small wire to remove stubborn clogs from the spray nozzles.

• Step 6: Once cleaned, reattach the spray arms and replace the bottom rack.

2. Inspect the Water Inlet Valve

A malfunctioning water inlet valve can restrict water flow into the dishwasher, leading to insufficient cleaning power. If the dishwasher isn’t receiving enough water, the cleaning cycle will fail.

How to Fix It:

• Step 1: Turn off the water supply to the dishwasher and unplug it from the power source.

• Step 2: Locate the water inlet valve, usually found at the bottom of the dishwasher, near the door.

• Step 3: Inspect the valve for any visible signs of damage or mineral buildup. A clogged filter screen can also restrict the water flow.

• Step 4: If you notice any build-up, clean the filter screen using a soft brush or cloth.

• Step 5: If the valve is damaged or if cleaning doesn’t resolve the issue, consider replacing the water inlet valve with a new one.

3. Check the Dishwasher’s Drainage System

A blocked or malfunctioning drainage system is another common reason why your KitchenAid dishwasher fails to wash dishes properly. If the dishwasher doesn’t drain properly, dirty water remains inside the machine, leaving food particles and soap residue on the dishes.

How to Fix It:

• Step 1: Turn off the dishwasher and unplug it.

• Step 2: Remove the bottom rack to access the drain area.

• Step 3: Check the drain filter for any visible blockages such as food debris, broken glass, or utensils. Clean out the filter thoroughly.

• Step 4: Inspect the drain hose for kinks, cracks, or clogs. If the hose is clogged, use a long, flexible brush or a plumbing snake to clear it.

• Step 5: Ensure the drain pump is functioning properly. If it’s malfunctioning, it may need to be replaced.

4. Inspect the Dishwasher Detergent Dispenser

If your dishwasher’s detergent dispenser isn’t working correctly, it can prevent detergent from being released at the right time in the wash cycle. This will result in poorly cleaned dishes, as detergent is essential for breaking down grease and food particles.

How to Fix It:

• Step 1: Open the detergent dispenser and check for any visible detergent residue, buildup, or obstruction.

• Step 2: Clean the dispenser with warm water and a soft cloth to remove any residue.

• Step 3: Ensure that the dispenser door opens properly during the wash cycle. If the door is jammed or the spring is faulty, you may need to replace the dispenser.

5. Check the Heating Element

KitchenAid dishwashers rely on a heating element to raise the water temperature to the necessary level for effective cleaning and sanitizing. If the heating element malfunctions, the water may not get hot enough, resulting in dishes that are not cleaned or sanitized properly.

How to Fix It:

• Step 1: Turn off the dishwasher and unplug it from the power supply.

• Step 2: Locate the heating element, usually located at the bottom of the dishwasher.

• Step 3: Inspect the element for any visible signs of damage, such as cracks or breaks.

• Step 4: Test the heating element with a multimeter to check for continuity. If there is no continuity, the element will need to be replaced.

6. Assess the Wash Cycle Settings

Sometimes, the problem may not be with the dishwasher itself, but rather with the cycle settings. If the wrong wash cycle is selected, the dishwasher may not be using the correct water temperature, pressure, or washing duration to clean the dishes effectively.

How to Fix It:

• Step 1: Review the cycle options on your KitchenAid dishwasher and select the appropriate wash cycle for the type of dishes you are cleaning.

• Step 2: If you have a heavy-duty cycle option, use it for heavily soiled pots, pans, and dishes.

• Step 3: If you’re cleaning delicate items, choose a lighter cycle that uses less water and gentler agitation.

7. Consider Hard Water Deposits

In areas with hard water, mineral deposits can accumulate on the dishwasher’s parts, affecting performance. These deposits can clog spray arms, reduce water pressure, and leave spots or residue on your dishes.

How to Fix It:

• Step 1: Install a water softener if your commercial kitchen operates in an area with hard water.

• Step 2: Regularly clean your dishwasher’s interior with a dishwasher cleaner designed to remove mineral deposits.

• Step 3: Consider using a rinse aid to help prevent mineral build-up on dishes.

Maintaining your KitchenAid dishwasher parts is crucial for smooth kitchen operations. Regular upkeep prevents issues and ensures efficient dishwashing. If problems persist, consult a professional technician for repairs.

Written by Allen Rode for PartsFe, your trusted source for a variety of high-quality commercial restaurant equipment, including ice machine and dishwasher parts.