To be able to clean the rubber of the washer you must start preparing a mixture with 4 parts of water and one of bleach. Put the mixture in a bottle that has a spray.
Before starting the application, make sure it is off and there is no garment between the rubber seals.
Pull the rubber of the washing machine with your hands so you can get it out, at least as much as possible.
Apply the mixture on the cloth and use it to clean the entire surface of the rubber. Rub vigorously in areas where there are black spots or mildew.
If the mold that has accumulated is resistant and you can not remove it with the cloth, let the mixture act a few minutes before rubbing.
Spray cold water on the rubber of the washing machine to rinse and use a clean and dry cloth to dry. You must do it thoroughly to dry the rubber completely and not leave anything wet.
Leave the door of the washing machine open so that it is aerated and the rubber can dry if any part was wet