RV refers in the bottom section uses convection air flow to remove the Heat. That is why it is important to not install food against the back wall in bags. Cans and bottles. The air flow must flow over the Evap fins to remove the Heat from the inside. ANYTHING (fans) that promote air flow over those fins will make the refer cool better. Since the bottom crisper drawers will not as easily have air flow, they will not get as cold. ICE on the Evap fins is a insulator and defrosting the refer when ICE builds up on the fins is required to get the refer colder and operate correctly. Using the Bluetooth temp sensors is a good idea but it is like have 4 watches. A man with 1 watch knows the time. A Man with 4 watches is never sure. Doug
