Final answer:
To find the proper location for the disconnected wire, identify its function as the neutral wire and connect it to another wire of the same color.
Step-by-step explanation:
To find the proper location for the white/red wire that is not connected, you need to determine its function. Based on the information provided, it seems that the white wire is the neutral wire.
The neutral wire is responsible for completing the circuit and returning the current. It is usually color-coded white or sometimes blue or black. To connect the wire, look for another wire of the same color or consult the wiring diagram or manufacturer's instructions for the specific device you are working on. It's important to note that the color-coding of wires can vary around the world, so always verify the color code in your region.