Yes, there is a thin layer of frost on the back wall by the vent.
No can't hear any thing.
Wife did say she has been having to clean up water off floor before this started to happen.
No ice on freezer floor
My wife recently saw some frost on front door of freezer when there was water on floor. The frost lasted for about a week then disappeared. No frost on front door now just on back wall. No frost on food. Jim
Thanks, I will let you know. JP