Blue Wire In Thermostat
Blue "c" wire is connected to "y" on old thermostat. new thermostat has Blue common wire for continuous nest thermostat power : nest Thermostat wire color codes and conventions
Can't figure this 3 wire system out or find anything in postal about it
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Blue "C" wire is connected to "Y" on old thermostat. New thermostat has
Blue common wire for continuous Nest thermostat power : Nest
Thermostat Wiring Blue Wire : I bought my parents a Nest thermostat for
Thermostat Compatibility - confusing black wire on previous thermostat
Thermostat Wire Color Codes and conventions
Thermostat Wiring Blue Wire - Thermostat Wiring Color Code Decoded And
Can't figure this 3 wire system out or find anything in postal about it