Unauthorized Charcoal: GE fridges won't dispense ice or water unless your filter authenticates as an official ($55!) component
@ShaneMorris: "My fridge has an RFID chip in the water filter, which means the generic water filter I ordered for $19 doesn't work. My fridge will literally not dispense ice, or water. I have to pay @generalelectric $55 for a water filter from them."