Mildew under Fridge 8289 Slide not sealed.

[B and B]

Before we headed out last week i opened the her to smell mildew around the fridge. Thinking the fridge was the source of the water under neath in the pots and pan drawer area I checked it out, pulled the fridge. Some moisture may have been there.
Today looking behind the couch while cleaning I saw daylight along the wall. went under the slide and pulled the protective shield for the cabling above the wheel well. Found the propane/12v/ 120 v hole feeding the slide had no sealant as well the angle iron (dexion) was not fastened fully causing the crack. Fastened the angle. Going to get some sealant tomorrow to finish this off. The source water is from the road. I had sealed the opposite slide last year as the cabling hole for the entertainment was opened as well.