Your refer IS a recall unit. But that is a safety recall with a temp control board added. When you state refer slid out 2 inches. You mean the COMPLETE refer slid out of the wood cabinet to the inside? Or the Cooling Unit came loose from the back side? IF the refer (complete refer) slid out of the wood cabinet, I do not understand why it took so much to remount it. There are screws at the outside rear thru the bottom plate and 8 screws inside (4 top and 4 bottom) that keep refer in wood cabinet. IF the CU came loose that is also strange as there are 12 screws in the freezer back plate that hold the cooling unit to the refer cabinet and the lower outside unit is screwed to the back wall of the refer cabinet. Ice Cream rarely gets hard in a RV refer. The lowest temp usually in a RV refer in the freezer is 0 to 5 degrees and Ice Cream needs to be at least below 0 degrees to get hard. If not cooling correctly after a CU change, then the odds are they did not install enough Thermal Mastic when they replaced the CU. Doug