If you're experiencing persistent black mildew in your dishwasher, despite regular cleaning and the use of bleach, there are a few steps you can take to address the issue:
Thoroughly clean the dishwasher: Start by emptying the dishwasher completely and inspecting the interior for any visible signs of mildew or mold. Use a damp cloth or sponge and a mild dishwashing detergent to clean the interior, including the walls, racks, and door. Pay extra attention to hard-to-reach areas, such as the spray arms and the seals around the door.
Remove and clean filters: Check if your dishwasher has filters that need cleaning. Filters can accumulate food debris and provide a breeding ground for mold and mildew. Consult your dishwasher's manual for instructions on how to remove and clean the filters properly.
Run a vinegar cycle: Vinegar is an effective natural cleaner and can help eliminate mold and mildew. Place a dishwasher-safe cup filled with white vinegar on the top rack of an empty dishwasher. Run a hot water cycle without any dishes. The vinegar will help break down and remove any residual mold or mildew.
Check the drain: Ensure that the dishwasher drain is clear and free of any clogs. Use a wire hanger or pipe cleaner to remove any debris that may be blocking the drain.
Increase ventilation: Proper ventilation can help prevent the growth of mold and mildew. After each dishwasher cycle, leave the door slightly ajar to allow air circulation and moisture to evaporate.
Consider professional help: If the issue persists despite your efforts, it may be worth contacting a professional appliance repair service. They can inspect your dishwasher for any underlying issues and provide further guidance or repairs if necessary.
Remember to always follow the manufacturer's guidelines and recommendations when cleaning your dishwasher to ensure its proper functioning and longevity.