Dishwashers

How Often Should I Clean My Dishwasher Filter? Top Cleaners Reviewed

When food particles, grease, and hard water minerals accumulate in your dishwasher, the appliance cannot clean dishes effectively. These buildups also create foul odors and can lead to expensive repairs. Cleaning your dishwasher filter every one to three months, or more frequently if you often wash heavily soiled dishes, prevents these problems.

How often should I clean my dishwasher filter?
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🏆 TOP PICK

Affresh Dishwasher Cleaner Tablets (Pack of 6)

  • Powers away limescale and mineral buildup.
  • Recommended by Whirlpool, KitchenAid, Maytag, and Amana brands.
  • Cleans internal components: tub, racks, pump, valve, and hoses.
  • Compatible with all dishwasher makes and models.
Check Price on Amazon

Finally Fresh Dishwasher and Washing Machine Cleaner Combo Pack

  • Dishwasher cleaner efficiently removes odors using natural lemon essential oil and citric acid.
  • Dishwasher cleaner thoroughly cleans filters, spray arms, and hidden parts, safe for septic tanks.
  • Washing machine cleaner provides triple decontamination and active oxygen to remove unseen dirt.
  • Helps prolong washing machine life and protects family health by preventing secondary clothing pollution.
  • Both cleaners are easy to use: simply add a tablet and run a cycle.
Check Price on Amazon

When food particles, grease, and hard water minerals accumulate in your dishwasher, the appliance cannot clean dishes effectively. These buildups also create foul odors and can lead to expensive repairs. Cleaning your dishwasher filter every one to three months, or more frequently if you often wash heavily soiled dishes, prevents these problems. For a truly effective clean that reaches beyond the filter, a dedicated dishwasher cleaner is essential. This filter traps larger food particles, preventing them from recirculating onto your dishes or clogging the drain pump. Over time, this filter can become caked with debris, leading to several problems.

A clogged filter reduces water flow and cleaning efficiency. You might notice dishes come out with a gritty residue, or the appliance might smell stale. In severe cases, a blocked filter can cause the dishwasher to not drain water properly, requiring immediate attention. A properly maintained filter keeps your dishwasher working as it should and extends its lifespan.

How Often Should I Clean My Dishwasher Filter?

The frequency for cleaning your dishwasher filter depends on how often you use the appliance and the type of dishes you wash. For average household use (3-5 cycles per week), cleaning the filter every one to three months is a good baseline. If you frequently wash dishes with heavy food residue, like those from casseroles or large family meals, inspect and clean the filter more often, perhaps every two to four weeks. If your dishwasher cycles are leaving food particles on dishes, that is a clear sign to check the filter immediately.

Steps for Cleaning Your Dishwasher Filter

Cleaning the filter is a simple process that takes only a few minutes. You do not need any special tools.

  1. Locate the Filter: Most filters are at the bottom of the dishwasher tub, usually under the lower spray arm. It may be a cylindrical filter or a flat mesh screen.
  2. Remove the Filter: Twist the cylindrical part counter-clockwise to unlock it. If it is a flat screen, it may lift out. Consult your dishwasher's manual if you have trouble finding or removing it.
  3. Rinse Under Running Water: Take the filter to your sink and rinse it under warm running water. Use a soft brush, like an old toothbrush, to gently scrub away any stuck-on food particles or grease.
  4. Use Mild Soap (Optional): For stubborn grease, a small amount of dish soap can help. Make sure to rinse thoroughly to remove all soap residue.
  5. Reinstall the Filter: Place the clean filter back into its housing. Twist the cylindrical part clockwise until it locks into place. Make sure it is secure to prevent leaks or improper operation.

While manual filter cleaning is essential, it only addresses visible debris. A chemical cleaner is needed to tackle limescale, mineral buildup, and grime in hidden components like the pump, spray arms, and hoses. These cleaners circulate through the entire system, dissolving deposits that manual cleaning cannot reach. This is where dedicated dishwasher cleaning products become invaluable.

Top Dishwasher Cleaners for a Spotless Appliance

Regular maintenance, including cleaning your dishwasher filter and using a specialized cleaner, prevents common issues. It keeps your dishes sparkling and your appliance smelling fresh. These tablets are specifically designed to power away limescale and mineral buildup, which are common culprits behind poor cleaning performance and odors. The formula targets internal components: the tub, racks, pump, valve, and hoses. This means a more thorough clean than simply scrubbing visible surfaces. Affresh is a highly recommended product by major appliance brands like Whirlpool, KitchenAid, Maytag, and Amana, giving it a strong endorsement.

Using Affresh tablets is simple. You place one tablet in the detergent dispenser or at the bottom of the empty dishwasher tub and run a hot water cycle. For best results, it is recommended to use one tablet monthly. A pack of six tablets typically costs around $7-$10, making it an affordable monthly maintenance solution. This cost is minimal compared to potential repair bills caused by neglected buildup.

Pros:

  • Powerful Cleaning Action: Effectively removes tough limescale, mineral deposits, and grime from hidden parts. This keeps the dishwasher running efficiently.
  • Brand Recommended: Endorsed by major appliance manufacturers, suggesting compatibility and effectiveness for a wide range of dishwashers.
  • Easy to Use: Simply toss a tablet in and run a cycle. No scrubbing or mixing required.
  • Addresses Odors: By eliminating buildup, it also tackles the source of unpleasant smells.

Cons:

  • Single Purpose: These tablets are designed only for dishwashers. It suits those who prioritize brand recommendations and seek to prevent common issues like hard water buildup and odors. If you own a Whirlpool, KitchenAid, Maytag, or Amana dishwasher, this cleaner is a particularly good match.

    Option 2: Finally Fresh Dishwasher and Washing Machine Cleaner Combo Pack

    The Finally Fresh Dishwasher and Washing Machine Cleaner Combo Pack offers a dual-purpose cleaning solution for two major household appliances. The dishwasher cleaner uses natural lemon essential oil and citric acid to efficiently remove odors and clean filters, spray arms, and hidden parts. It is also safe for septic tanks, an important consideration for many homeowners. The washing machine cleaner component provides triple decontamination and active oxygen to remove unseen dirt and grime from your laundry appliance.

    This combo pack provides convenience for those looking to maintain both their dishwasher and washing machine with one purchase. The cost for a combo pack typically ranges from $15-$20, offering good value for two distinct cleaning agents. Each bottle or tablet is designed for a single use in its respective appliance, similar to the Affresh product for dishwashers.

    Pros:

    • Dual Appliance Cleaning: Cleans both dishwashers and washing machines, simplifying your cleaning routine.
    • Natural Ingredients: The dishwasher cleaner uses lemon essential oil and citric acid, appealing to those who prefer natural cleaning agents.
    • Septic Safe: A good option for homes with septic systems.
    • Odor Removal: Specifically formulated to tackle odors in both appliances.

    Cons:

    • Less Concentrated Dishwasher Focus: While effective, the dishwasher cleaner may not be as intensely formulated for hard water and limescale removal as the Affresh product, which is specifically endorsed by appliance manufacturers for this purpose.
    • Higher Initial Cost: The combo pack has a higher upfront price than a single pack of dishwasher-only tablets.

    Best For:

    This combo pack is excellent for homeowners who want to maintain both their dishwasher and washing machine simultaneously. It is particularly suitable for those who prefer natural cleaning ingredients and have septic systems. If you are experiencing mildew smells in your washing machine, this product provides a solution for that issue as well. For more tips on washing machine smells, see our guide on how to kill mildew in your washing machine.

    Why Regular Dishwasher Cleaning Matters

    Beyond simply cleaning your dishwasher filter, using a dedicated cleaner offers several benefits. It prevents the buildup of food soils, grease, and hard water deposits that can lead to poor wash performance, cloudy dishes, and unpleasant odors. Over time, these buildups can also strain your dishwasher's pump and motor, potentially leading to costly repairs. A routine maintenance checklist is key to appliance longevity.

    For example, if your dishwasher is not draining water properly, a clogged filter or pump could be the cause. Regular use of a cleaner like Affresh helps keep these components clear. This can prevent you from needing to troubleshoot a dishwasher not draining water problem. The cost of a few dollars per month for a cleaning tablet is a small investment compared to the average service call fee for an appliance repair technician, which can range from $75 to $150 just for diagnosis, plus parts and labor.

    Final Thoughts on Keeping Your Dishwasher Clean

    Maintaining a clean dishwasher, including regularly cleaning your dishwasher filter, is essential for its performance and longevity. While both the Affresh and Finally Fresh products offer effective cleaning, the Affresh Dishwasher Cleaner Tablets remain our top recommendation for their targeted power against limescale and mineral buildup, and their endorsement by major appliance manufacturers. They offer a highly effective and simple solution for keeping your dishwasher in top condition.

    Remember, a clean dishwasher means cleaner dishes and fewer headaches.

    Our Recommendation
    🏆 TOP PICK

    Affresh Dishwasher Cleaner Tablets (Pack of 6)

    • Powers away limescale and mineral buildup.
    • Recommended by Whirlpool, KitchenAid, Maytag, and Amana brands.
    • Cleans internal components: tub, racks, pump, valve, and hoses.
    • Compatible with all dishwasher makes and models.
    Check Price on Amazon

    Finally Fresh Dishwasher and Washing Machine Cleaner Combo Pack

    • Dishwasher cleaner efficiently removes odors using natural lemon essential oil and citric acid.
    • Dishwasher cleaner thoroughly cleans filters, spray arms, and hidden parts, safe for septic tanks.
    • Washing machine cleaner provides triple decontamination and active oxygen to remove unseen dirt.
    • Helps prolong washing machine life and protects family health by preventing secondary clothing pollution.
    • Both cleaners are easy to use: simply add a tablet and run a cycle.
    Check Price on Amazon

Frequently Asked Questions

How often should I manually clean my dishwasher filter?

You should manually clean your dishwasher filter every one to three months for average use. If you wash heavily soiled dishes frequently, consider cleaning it every two to four weeks.

Why is it important to use a dishwasher cleaner in addition to cleaning the filter?

A dishwasher cleaner removes hidden buildup like limescale, grease, and mineral deposits from internal components such as the pump, spray arms, and hoses. Manual filter cleaning only addresses visible debris.

What are the signs that my dishwasher filter needs cleaning?

Common signs include dishes coming out with food particles or a gritty residue, unpleasant odors from the dishwasher, or the appliance not draining water properly.

Disclaimer: This article is for informational and educational purposes only. It does not constitute professional advice. Always consult a qualified professional before making decisions based on this content.
Mark M.

The Appliance Aid editorial team publishes expert-reviewed content on Home appliance repair and troubleshooting guides.