DIY Electrical Troubleshooting - Mobile Home Renovation Episode 5

No electrical plans are available. We need to know how each wire fits into the circuit so we can replace a switch. While we have good access to the wires with the drywall off, they are not labeled. One wire at a time, while being aware of electrical safety, we untie the knot of wires. Once we know what each wire does we can construct a new circuit for the light switch.