[The Old Guy]

The "sensor" is a little sliding thing located on one of the fins that are below the freezer in the refridgerator compartment. Mine was located on the right side about half way up the fin. It is a small device that fits on the fin. The only foreign object that is there.

Maybe we have different units, but in their home site they all seem to have the fins in the same location when there is a freezer above.

I am going to the unit to find the model and i will post that later.