![Nest thermostat install: this is my thermostat's current configuration (note yellow wire isn't connected to anything and blue wire is in Y slot). Should I keep it the same for the nest? Nest thermostat install: this is my thermostat's current configuration (note yellow wire isn't connected to anything and blue wire is in Y slot). Should I keep it the same for the nest?](https://i.redd.it/9md13ffhanx71.jpg)
Nest thermostat install: this is my thermostat's current configuration (note yellow wire isn't connected to anything and blue wire is in Y slot). Should I keep it the same for the nest?
![Took off the thermostat to check for compatibility; I don't understand why there is a piece of white connected to yellow and why the white wire from the wall is not connected Took off the thermostat to check for compatibility; I don't understand why there is a piece of white connected to yellow and why the white wire from the wall is not connected](https://i.redd.it/schil3ov87q61.jpg)
Took off the thermostat to check for compatibility; I don't understand why there is a piece of white connected to yellow and why the white wire from the wall is not connected
![Thermostat wires break down wt white wire is heat. Y is yellow and is your compressor. G green is you… | Thermostat wiring, Refrigeration and air conditioning, Wire Thermostat wires break down wt white wire is heat. Y is yellow and is your compressor. G green is you… | Thermostat wiring, Refrigeration and air conditioning, Wire](https://i.pinimg.com/originals/be/29/8d/be298d2348e5adc80ef15171a058edeb.gif)
Thermostat wires break down wt white wire is heat. Y is yellow and is your compressor. G green is you… | Thermostat wiring, Refrigeration and air conditioning, Wire
![hvac - ecobee3 Installation - Thermostat Y Terminal (yellow) Wire Connects to C Terminal Board - Home Improvement Stack Exchange hvac - ecobee3 Installation - Thermostat Y Terminal (yellow) Wire Connects to C Terminal Board - Home Improvement Stack Exchange](https://i.stack.imgur.com/VE3Uf.jpg)