The Date Code is located on the side label of the unit, in the bottom row of the chart, beside the letters PP, QQ or RR. If the Date Code begins with RR, you may also be required to submit the unit's serial number, located at the back of the unit, above the plug wire.
NOTE: Only the FoodCycler FC-30 Platinum will have a Date Code. If your unit is a Smart-Cara CS-10, it will not have the same label as our units. We no longer carry Smart Caras. That model was discontinued and is only available through resellers (with whom we are not affiliated).