Color codes are a system of using different colored wires to represent different functions in a thermostat wiring system. This makes it easier to identify which wires go where when installing or troubleshooting a thermostat.
For example, in a typical thermostat wiring system, the red wire is used for power, the white wire is used for neutral, the green wire is used for ground, and the yellow wire is used for the thermostat’s signal.
CONTINUE READING >