We've had a weird musty smell in our kitchen area lately so Jason decided to pull out or dishwasher to see if he could find a leak or anything. I told Jason that there must be a small hole or something back there because when it's really cold, I can feel cold air around the dishwasher. So I bought a can of the spray foam insulation so that we could patch the hole. Once we got the dishwasher out, it was not a small hole but instead a 2 inch by 2 1/2 foot missing piece of wood under the dishwasher that was opened to the underside of our house. Wonder how the smell was getting in?