KitchenAid dishwashers are designed for efficient, quiet operation, but routine cleaning helps maintain performance and extend lifespan. This guide provides a clear, practical process using common tools and specific accessories to keep the dishwasher interior, spray arms, and filters in top shape.
Following a regular cleaning routine can prevent odor, improve cleaning results, and reduce the need for costly service calls. The steps below balance simple maintenance with hands-on care that uses widely available products and accessories.
Quick Answer
Quick method: Run a hot, empty cycle with a descaling tablet or a dishwasher cleaning solution, then manually clean the filter, spray arms, and door seals. Repeat every 1–3 months depending on usage and water hardness.
What You’ll Need
- KitchenAid dishwasher cleaning brush
- Dishwasher spray arm cleaning tool
- Dishwasher filter cleaning brush
- Descaling tablets for dishwasher
- Dishwasher maintenance kit spray arm brush
Before You Start
Turn off the dishwasher and unplug it if accessible. If you rely on the unit’s power switch, ensure it is in the off position. Check the interior for large debris and remove anything loose from the bottom rack. For safety, wear gloves and use a soft cloth for delicate surfaces. Time estimate: 30–60 minutes for a full cleaning session, plus time for a hot-water cycle if needed. Critical cautions: avoid harsh abrasive tools that can scratch stainless surfaces, and never mix cleaning agents inside the dishwasher.
Step-By-Step: How To Clean KitchenAid Dishwasher
- Start with a hot, empty cycle using a descaling tablet or a dishwasher cleaning solution. This helps loosen mineral buildup and food particles from walls, the pump, and the spray arms.
- Open the door and remove both racks to access the interior more easily. Inspect the door seal for grime and wipe clean with a soft cloth.
- Remove the filter assembly. Use the dishwasher filter cleaning brush to scrub away any trapped debris and rinse thoroughly under warm water.
- Inspect the spray arms. If water nozzles appear clogged, use the dishwasher spray arm cleaning tool to dislodge mineral deposits and debris. Spin each arm to ensure smooth rotation.
- Clean the filter housing and sump area. Use the brush designed for filters to reach tight spaces where debris collects. Rinse until the water runs clear.
- Wipe down the interior surfaces, including the corners, door edge, and racks with a damp microfiber cloth. For stubborn grime, a mild dish soap solution can be used carefully—avoid excess moisture near electrical components.
- Reassemble the filter, spray arms, and racks. Run a short, hot cycle with nothing else in the dishwasher to verify proper function and check for leaks.
- Optionally refresh with a second, hot cycle using a descaling tablet to ensure any residual buildup is removed after the initial clean.
- Clean the exterior control panel and handle with a soft damp cloth to maintain appearance and hygiene without affecting electronics.
- Schedule routine maintenance: light cleaning every month or two, and a full clean (as described) every 1–3 months depending on usage and water quality.
Troubleshooting
| Symptom | Likely Cause | Fix | Prevention |
|---|---|---|---|
| Water not cleaning dishes well | Clogged spray arms or filter | Clean spray arms and filter thoroughly | Regular maintenance schedule |
| Unpleasant odor | Stale food debris in filter or sump | Clean filter and sump area | Run empty hot cycle with descaler periodically |
| Water leaks during cycle | Loose seals or worn gaskets | Inspect and reseal door area; replace if damaged | Gentle cleaning and prompt replacement of worn parts |
| Clogged nozzles on spray arms | Mineral buildup | Use spray arm cleaning tool to clear nozzles | Use descaling product as part of routine |
Common Mistakes
- Using harsh abrasive pads on stainless surfaces, which can scratch and dull the finish.
- Overfilling the dishwasher with cleaners or mixing different products inside the unit.
- Skipping the filter and spray arm checks, which allows buildup to accumulate.
Tips For Best Results
- Schedule descaling based on water hardness in your area; harder water requires more frequent cleaning.
- Use the right tools for the job—specialized brushes designed for filters and spray arms provide gentler, more effective cleaning.
- Run a maintenance cycle with nothing but descaling product to maximize mineral removal on a regular cadence.
- Keep the interior dry after cleaning to prevent mold growth; leave the door ajar for a short time after cycles.
Call A Professional
Notify a professional if there are persistent leaks, unusual noises, error codes on the control panel, or any signs of electrical issues. Stop using the unit and seek service if you detect burning smells, smoke, or an ongoing electrical warning.
FAQ
How often should I clean my KitchenAid dishwasher?
Most households benefit from a full internal clean every 1–3 months, plus periodic descaling based on water hardness.
Can I use vinegar to clean my dishwasher?
Vinegar is not recommended as a primary cleaner inside dishwashers because it can degrade seals and rubber components over time.
What is the best way to clean the spray arms?
Remove and inspect the spray arms, then use a dedicated spray arm cleaning tool to clear clogged nozzles.
What should I do if the dishwasher still smells even after cleaning?
Check for trapped debris in the filter, seal, and sump area; consider running a dedicated cleaning cycle with a targeted descaling product.
Buying Guide
Choosing cleaning and maintenance accessories for a KitchenAid dishwasher involves several factors. Consider how often you run cycles, water hardness, and the dishwasher model’s design when selecting tools and descaling products. Key buying factors include:
- Size and compatibility: Ensure brushes and tools fit your dishwasher’s filter housing and spray arms.
- Noise level: Maintenance tasks are generally quiet, but select tools with comfortable handles and minimal noise during use.
- Energy and efficiency: Regular descaling helps maintain efficiency, reducing energy use and improving cleaning performance.
- Controls and ease of use: Look for tools that are simple to maneuver inside tight spaces and align with your maintenance routine.
- Placement considerations: Store cleaning tools in an accessible cabinet near the kitchen for quick, regular maintenance.
When comparing kits, review which components are included: spray arm brushes, filter brushes, and descaling tablets are often sold as part of a maintenance set. Some users prefer a dedicated spray arm brush and a separate filter brush for targeted care. If you have hard water, prioritizing descaling tablets will help prevent mineral buildup. Ready-made maintenance kits that combine spray arm brushes and filters support a comprehensive approach, keeping KitchenAid dishwashers performing at their best.


