This is a Kitchenaid built in model #KSSS36DAW05
I try to keep the freezer side at 0° F and the fridge side at 40°. For the last two weeks, the fridge side has been getting progressively warmer. Now, with the fridge control set to coldest, it is 45° there, while the freezer is still at 0° F. The unit does not appear to run for any greater length of time than normal. There is no excessive activity - it gets opened a half dozen times a day just long enough to grab something. The coils are cleaned every couple of months. I can feel airflow in the vent coming from the freezer side to the fridge, but it feels choppy. I haven't felt for this before, so I don't know if its normal. The fan doesn't sound different. I have noticed the fan runs at times even when the compressor isn't running. Must be on separate circuits. There is no sweating in either compartment and the "dollar bill" test shows the door seal good all the way around. Any insight would be appreciated.