We had a problem with the refrigerator freezer we have in the garage. Freezer was working but refrigerator part was not. Had to remover the freezer door and the baskets, remove the back panel and use a hair dryer to get rid of all of the frost that had built up on the coils preventing the cold air from getting from the freezer compartment up to the refrigerator part. Since the freezer is a drawer on the bottom I was sitting on the floor while doing all of this and twisting myself into awkward positions and must have done something because when I went to bed and worked on my extension I had some pretty sharp pain just above and below the knee. Thankfully, this morning that seems to have gone away!