WebApr 18, 2024 · That is why the thermostat needs the G wire -- so it can "call for fan" whenever it "calls for A/C". Without it - no A/C. Yes, the furnace controls the fan automatically for calls for heat - but that only works for heat. So, do not defeat the "G" wire/fan control. The preferred color for the "C" wire is BLUE. So if a blue wire is … WebMay 24, 2024 · 2 Wire Thermostat Wiring. 2 wire systems are used for every thermostat and HVAC component out there. While many options use more than two wires, all …
Thermostat Green Wire Not Connected – What to Do?
WebFeb 24, 2024 · Refer to the thermostat manufacturer's wiring diagram for precise connection information. G: The G terminal controls the fan relay and is responsible for turning the blower fan on and off automatically or … WebOct 25, 2014 · My old thermostat only used 4 wires, the white,green, yellow and red. My old thermostat didn’t require continuous power so the blue,C wire wasn’t connected. However, their was a blue, C wire in the wall, so I figured was all set. I followed all the instructions and connected all wires correctly. Once I powered on my furnace (Ruud … imanage upload new version
How to Install a Thermostat for a Baseboard Heater
WebThermostat Heating Wire (W/White wire) The W wire is the heating wire. The heating is activated whenever you get R (power) to W. That will then activate the furnace or burner inside your HVAC system, which is essential for providing heat. Thermostat Wiring: The Fan Wire (G/Green Wire) The G wire is the fan or green wire. WebFeb 24, 2024 · Refer to the thermostat manufacturer's wiring diagram for precise connection information. G: The G terminal controls the fan relay and is responsible for turning the blower fan on and off automatically or … WebNov 16, 2024 · This is because knowing the thermostat’s wire color codes will help you prevent any DIY wiring problems. Below are the thermostat’s colored wires and their … imanage unauthorised access