2nd day of Nisan, 5770
After you thoroughly clean the dishwasher, run it on an empty cycle without dishes but with detergent. Then the dishwasher becomes Kosher for Pesach. Rabbi Eliyahu Ben-Hayim (Shelita) recommends when possible to replace the dishwasher racks or to use some kind of an added base to cover the year round racks.
The oven should not be used for 24 hours. Then you must clean it thoroughly and, if it is a self-cleaning oven, you run one self-cleaning cycle and the oven is Kosher for Pesach. If it is not a self-cleaning oven, after you thoroughly clean it, let the oven run on the highest temperature setting for approximately one hour, including the racks, then the oven is Kosher for Pesach.
Take a bowl of water, with some detergent or soap in it, and then to let it boil in the microwave until the microwave walls are filled with its steam. The vapor penetrates the walls rendering the microwave Kosher for Pesach. (If you can’t do this and you need to use a year round microwave, cover completely the food in a container or Ziploc products, Saran wrap or any other hermetic microwavable covers).
For any doubts or questions regarding making cookware, tableware etc, Kosher for Pesach consult a rabbinic authority or send an email to firstname.lastname@example.org