Once a week, clean the dishwasher door with a soft, slightly moistened cloth and dry thoroughly. You can do the same for the control panel. Remember, excessive moisture can damage the panel. The inside of the dishwasher is made of stainless steel or plastic. Stainless steel is generally resistant to stains.
Mix one gallon of water with 1/2 cup of ammonia to remove mold from the inside. Then wipe with a cloth or sponge, wearing rubber gloves. Note: Never mix bleach and ammonia together; doing so will result in dangerous, potentially fatal fumes.
If the interior of the machine is stainless steel, do not use chlorine bleach to remove mildew; bleach can cause rusting. Is it washed in the dishwasher?
Iron and magnesium in water often cause rusting. Rust can also come from the kettle or from rusty water lines. You can check for iron and magnesium by having an analysis by a water treatment company or testing lab. To remove stains, you can try cleaning products like rust remover.
Possibly caused by calcium or iron buildup, use citric acid (also known as lemon salt) in liquid form. Empty the dishwasher, fill the detergent container with citric acid and start your machine. Then run the dishwasher a second time, this time with an empty dish, adding detergent. Click to read the usage areas of salt.
After removing any stains, clean the inside of your dishwasher: Remove the shelves and use a toothpick to remove any dirt from the holes in the rotating arms. Wash the drain grid and removable filter (if applicable) in warm soapy water. Wipe the rubber door seal with a damp cloth soaked in vinegar. Sprinkle a cup of baking soda underneath, then run the machine on a hot setting on the short program to remove remaining stains and odors.