Cleaning and sanitizing a dishwasher helps maintain optimal performance, prevent odors, and extend the appliance’s life. This guide outlines practical steps using common tools and targeted cleaners to remove buildup, sanitize interior surfaces, and keep dishes sparkling.
Quick Answer
Run an empty cycle with a dishwasher-safe cleaner, scrub gaskets and spray arms, and replace or rinse the filter regularly. Use long‑reach brushes for hard‑to‑reach spots and a dedicated crevice brush for the interior to prevent residue buildup.
What You’ll Need
- Dishwasher cleaning brush long-reach gaskets
- Crevice brush for dishwasher interior
- Dishwasher filter cleaning brush set
- Dishwasher spray arm cleaning tool
- Automatic dishwasher cleaner tablets
Before You Start
Before beginning, unplug the dishwasher or switch off the circuit breaker and ensure the door is unlocked. Remove any standing water and empty the lower rack to access all interior surfaces. Run a quick pre-rinse to loosen food particles if needed. Wear gloves to protect hands, and avoid mixing cleaners with harsh chemicals. Plan for about 60–90 minutes, including drying time.
Step-By-Step: How To Clean And Sanitize A Dishwasher
- Empty the dishwasher and inspect seals and hinges for wear or damage.
- Use the long‑reach brush to scrub the door gasket, paying attention to folds where mold can hide.
- Remove the filter and rinse it under warm water; use the dishwasher filter cleaning brush set to dislodge stubborn debris.
- Clean the spray arms with the dishwasher spray arm cleaning tool, clearing any clogged holes with a thin pin or brush.
- Run a hot water cycle with a recommended dishwasher cleaner tablet placed in the detergent dispenser.
- Wipe down the inside walls and corners after the initial cycle to remove loosened residue.
- Place an additional cleaner tablet or a cup of white vinegar on the top rack for a second cycle, if recommended by the cleaner’s instructions.
- Rinse filters again and reassemble the dishwasher; run a short rinse cycle to ensure any cleaner residue is flushed away.
- Check for any leaks and verify that the spray arms rotate freely after the cycle finishes.
- Schedule regular maintenance: clean filters weekly, and inspect seals monthly to prevent buildup.
- Keep a routine: run an empty cleaning cycle every 1–2 months, or as needed based on usage.
- Document findings and adjust cleaning frequency if odors return quickly or if visible buildup recurs.
Troubleshooting
| Symptom | Likely Cause | Fix | Prevention |
|---|---|---|---|
| Persistent odor after cleaning | Residue in filter or spray arms | Deep-clean filter and spray arms; run cleaner cycle again | Clean monthly; use tablets as directed |
| Water not draining | Clogged filter or pump | Inspect and clean filter; check drain hose for kinks | Regularly remove debris from filter |
| Visible mold around gasket | Moisture buildup | Scrub gasket with brush; dry surfaces after cycles | Leave door ajar after cycles to air out |
| Spray arms not spinning | Clogged spray holes | Clean holes with spray arm tool or pin | Rinse dishes to reduce particle buildup |
Common Mistakes
- Overloading the dishwasher, which prevents effective cleaning
- Using vinegar or bleach together, which can create harmful gases
- Neglecting the filter and spray arms during routine cleaning
- Skipping the pre‑rinse when there is heavy food residue
Sticking to a regular schedule and using the right tools helps prevent these issues and keeps the dishwasher performing at peak efficiency.
Tips For Best Results
- Choose a cleaner tablet designed specifically for automatic dishwashers for consistent results.
- Use the crevice brush for tight corners and around the door frame where grime collects.
- Inspect seals monthly and replace worn gaskets to prevent leaks and odor buildup.
- Run hot water before starting a cleaning cycle to maximize cleaning power.
- Keep the interior dry between cycles to reduce mold growth; wipe down the door after use.
Call A Professional
Contact a professional if the dishwasher shows signs of structural damage, persistent leaks, abnormal noises, or electrical issues. Stop using the appliance if there is standing water that cannot be pumped out, or if the control panel behaves erratically.
FAQ
How often should I clean my dishwasher?
Clean the filter and spray arms monthly and run an empty cycle with a cleaner every 1–2 months, or more often with heavy use.
Can I use household vinegar to clean my dishwasher?
Vinegar can be effective in small amounts but should not be mixed with bleach or used in excess, as it can upset the dishwasher’s seals over time.
What is the best way to clean the door gasket?
Use a long‑reach brush or crevice brush to reach folds, then wipe dry with a cloth to prevent mold.
What should I do if food remains after a cycle?
Check and rinse the filter, inspect the spray arms for clogs, and run a second cleaning cycle if necessary.
Buying Guide
When shopping for dishwasher cleaning tools and cleaners, consider size and compatibility with your appliance, noise level during operation, and whether the kit includes long‑reach brushes, crevice tools, and a dedicated cleaner. Look for durable materials that resist mold and are safe for stainless steel interiors. Consider the frequency of use and select a set that covers both interior scrubbing and routine maintenance. For those who prefer convenience, pre‑packaged cleaner tablets paired with a complete brush set streamline maintenance. Finally, assess placement needs in the kitchen—store tools in an accessible cabinet near the dishwasher for quick access during cleanings.