Regular maintenance of your Kenmore Ultra Wash dishwasher’s filter is crucial for efficient operation, preventing clogs, reducing odors, and ensuring dishes come out sparkling clean. Neglecting this simple task can lead to water drainage problems, residue buildup, and diminished cleaning power. This detailed guide provides everything you need to know, from preparation to advanced troubleshooting, empowering you to handle upkeep like a pro.

Understanding the Role of the Dishwasher Filter

The filter in a Kenmore Ultra Wash model acts as a barrier, capturing food scraps, grease, and debris during wash cycles to keep the pump and spray arms functioning smoothly. Over time, accumulated particles can restrict water flow, causing poor rinsing and standing water issues. Models like the Elite series feature a triple filtration system with an upper assembly and lower filter for superior trapping efficiency.

By routinely clearing this component, you extend the appliance’s lifespan and avoid costly repairs. Manufacturers recommend monthly checks, especially in homes with hard water or heavy food residue.

Essential Tools and Supplies for Filter Cleaning

Gather these items before starting to make the process quick and effective:

  • Warm water source (kitchen sink)
  • Mild dish soap
  • Soft-bristle brush or old toothbrush
  • Paper towels or microfiber cloth
  • Bucket or basin for soaking (optional)
  • Flashlight for visibility
  • Gloves to protect hands from grime

No specialized tools are needed, keeping this task accessible for all homeowners.

Preparation Steps Before Cleaning

Safety and readiness prevent mishaps. First, unplug the dishwasher or switch off at the circuit breaker to eliminate electrical risks. Empty all racks completely to access the base freely. Run a drain cycle if water remains inside—press the drain or cancel button to activate the pump and clear standing liquid. Allow 10-15 minutes for residual moisture to evaporate and heating elements to cool, avoiding burns.

Consult your user manual for model-specific details, as slight variations exist across Kenmore series like 665 or 16770.

Finding the Filter in Your Kenmore Ultra Wash

Most Kenmore Ultra Wash dishwashers house the filter at the tub’s bottom center, under the lower spray arm. Slide out the bottom rack fully. Look for a cylindrical or basket-like assembly, often with a twist-lock mechanism. In triple-filter setups, identify the upper filter (larger rotating part) and lower filter (flat screen underneath).

If obscured, use a flashlight and gently move the spray arm aside by pressing its center clip and lifting. Older models from the 1980s may require removing protective covers or additional panels.

Step-by-Step Removal Process

  1. Upper Filter Assembly: Grip the handle or edge and rotate counterclockwise a quarter turn (about 90 degrees). Lift straight up to detach.
  2. Lower Filter: Pull forward or grasp edges and tug gently. It may slide under tabs—align and release.
  3. Check for Accessories: Note any small washers or clips; set aside safely.

Handle delicately to avoid bending mesh or cracking plastic. If stuck, wiggle side-to-side without forcing.

Effective Cleaning Techniques

Transport parts to the sink. Rinse under warm running water to flush loose debris. For stubborn buildup:

  • Scrub gently with a soft brush and dish soap solution, targeting crevices and mesh.
  • Soak 10-20 minutes in warm soapy water for grease or calcium deposits.
  • Use a sponge for fine particles; avoid abrasives like steel wool that scratch surfaces.

Hard water users: Brush mineral scales monthly and consider vinegar soaks quarterly for descaling. Dry thoroughly with a towel to prevent mold.

Cleaning the Surrounding Filter Area

Don’t overlook the housing. Wipe the tub floor with a damp cloth or paper towel, removing sludge around the filter slot. Vacuum loose bits with a shop vac if abundant. Scrub edges and pump inlet for complete hygiene, as overlooked grime recirculates during cycles. Run a short hot water cycle with detergent (racks empty, filter out) to flush remnants.

Proper Reinstallation Methods

Ensure dryness before replacing:

  1. Position lower filter under tub tabs, aligning circular openings.
  2. Insert upper assembly into the hole; rotate clockwise until it clicks or stops (tight but not over-forced).
  3. Secure clips or washers if present.
  4. Reposition spray arm, snapping into place.

Test by running a drain cycle post-reinstall to verify smooth operation.

How Often Should You Clean the Filter?

Household TypeRecommended FrequencyReason
Light use (1-2 loads/week)Every 1-2 monthsMinimal buildup
Average familyMonthlyStandard food debris
Hard water/large familiesBi-weeklyHeavy residue/scaling
Post-Thanksgiving/etc.Immediately afterExcessive particles

Monitor for signs like odors, spots on dishes, or error codes prompting service.

Troubleshooting Common Filter Issues

Clogged Drain: If water won’t drain, repeat cleaning and check pump area. Run heavy cycle sans filter to clear sump.

Food Particles on Dishes: Indicates blocked mesh—deep clean and inspect spray arms.

Odors Persist: Sanitize with vinegar cycle: Place cup of white vinegar on top rack, run hot cycle.

Hard to Remove: Ensure power off; apply WD-40 sparingly if seized (rinse well after).

For persistent problems, reference iFixit or AppliancePartsPros forums, but prioritize official manuals.

Benefits of Consistent Filter Maintenance

Beyond pristine dishes, routine cleaning boosts energy efficiency by maintaining water pressure, reduces detergent use, and minimizes repair calls. A clean filter prevents bacterial growth, keeping your kitchen fresh. Users report 20-30% better cleaning results post-maintenance. Invest 15 minutes monthly for long-term savings.

Advanced Tips for Kenmore Ultra Wash Owners

For Elite models, disassemble triple filters fully during deep cleans. Hard water? Install a softener or use phosphate-free detergents. Track cycles via app if smart-enabled. Pair filter care with monthly spray arm checks: Remove, flush holes with toothpick.

Winter prep: Clean before storage to avoid mold in humid areas.

Frequently Asked Questions (FAQs)

What if my filter won’t twist out?

Confirm drainage and cooling. Wiggle gently; if jammed, soak in hot soapy water post-removal attempt. Avoid pliers to prevent damage.

Can I dishwasher the filter?

No—hand clean only to preserve shape and material integrity.

Why does my dishwasher smell after cleaning?

Run a vinegar or baking soda cycle to neutralize residues in hidden areas.

Is filter replacement needed?

Rarely; clean suffices unless cracked. Parts available via Kenmore parts sites.

Does this apply to all Kenmore models?

Primarily Ultra Wash series; check manual for variations like 665.13269K114.

References

  1. How to Clean Your Dishwasher Filter — Kenmore Inspiration. Accessed 2026. https://inspiration.kenmore.com/how-to-clean-your-dishwasher-filter/
  2. Kenmore Elite – Ultra Wash Filtration System — YouTube (Kenmore Official). Accessed 2026. https://www.youtube.com/watch?v=wtfx6dajSyA
  3. How To Clean a Filter on a Kenmore Dishwasher — YouTube. Accessed 2026. https://www.youtube.com/watch?v=TF_mUcPdbKE
  4. How to remove dishwasher bottom to clean filter and fix clogs — YouTube (Kenmore Elite). Accessed 2026. https://www.youtube.com/watch?v=02uDY7lANO8
  5. Maintenance in a Minute: Cleaning a Kenmore Dishwasher Filter — YouTube (Centerspace). Accessed 2026. https://www.youtube.com/watch?v=szA4n6tXYfw