Great video! I have my green and blue wire connected together in the C on my old iComfort thermostat. I’m upgrading to the new Nest 4th gen thermostat, do I keep the blue and green wire connected in the C slot or should I separate it? Thanks for any input . 6:26
@@OneHourSmartHomewhat happens if I had an old furnace and there isn't a ground wire but my New one needs it is there hey, we need to run a ground wire without going in the Attic or underneath the house
Excellent video in every respect. Only one situation NOT covered. How can a person install a C wire to an OLD SYSTEM NOT HAVING A MAIN MODERN MOTHERBOARD ON THE FURNACE???
Great video. I have both the blue and green wire connected to the C on my old iComfort thermostat. Trying to upgrade to the Nest 4th gen thermostat , can I connect green and blue wire to the C slot in the Nest thermostat or do I separate them?
Great video! I have my green and blue wire connected together in the C on my old iComfort thermostat. I’m upgrading to the Nest 4th gen thermostat, do I keep the blue and green wire connected the C slot or should I separate it? Thanks for any input .
this was very informative but I dont have an extra wire so I was going to move G to C, as explained. However, you say change it to C at the HVAC system. I have a split system so are we changing it at the heater, condensor, or both?
Thanks a lot for the great video. I have AC (cold/hot) and there are 3 wires only. The existing thermostat has a digital screen but no back light even. Any suggestion on how can I install a smart thermostat? The AC is a split unit where there is an external unit and ceiling mounted internal unit.
When a disconnected C Wire is found at the thermostat, do you assume it’s connected at the HVAC Unit? Is there a way to determine this at the thermostat?
I'm not a professional, but I wouldn't be comfortable getting rid of my ground for any wiring (even low voltage) running through my walls. That just seems like asking for trouble.
G doesn’t mean ground in this case. There’s no “ground wire” for the thermostat - actually the C wire is closer to the typical function of a ground wire than any of the others (it’s an unloaded negative path).
@@nekkrist He was talking about the common wire. Which is the other side of 24v transformer. Common at the thermostat was not needed in old analog thermostats . They are nothing more than a set of switches switch. Hot and common to a switch goes boom. Fork in the light socket experiment proves this! Then came digital thermostats. Rather have a new wire ran a battery was enough to power the display. Now that we have fancy thermostats with wifi we need power and common or it will not be able to operate
Great video! I have my green and blue wire connected together in the C on my old iComfort thermostat. I’m upgrading to the new Nest 4th gen thermostat, do I keep the blue and green wire connected in the C slot or should I separate it? Thanks for any input . 6:26
Great video. I have both the blue and green wire connected to the C on my old iComfort thermostat. Trying to upgrade to the Nest 4th gen thermostat , can I connect green and blue wire to the C slot in the Nest thermostat or do I separate them?
Great video! I have my green and blue wire connected together in the C on my old iComfort thermostat. I’m upgrading to the new Nest 4th gen thermostat, do I keep the blue and green wire connected in the C slot or should I separate it? Thanks for any input . 6:26
Great video. I have both the blue and green wire connected to the C on my old iComfort thermostat. Trying to upgrade to the Nest 4th gen thermostat , can I connect green and blue wire to the C slot in the Nest thermostat or do I separate them? Thanks for your input.
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Thank you for the explanation, it took a long time to find out what C actually was.
This is the only video that answered each of my questions and explained everything so well.
Great to hear! Thanks for watching!
Thanks!
Best video explaining C-Wire that I've found. Tks.
Great video! I have my green and blue wire connected together in the C on my old iComfort thermostat. I’m upgrading to the new Nest 4th gen thermostat, do I keep the blue and green wire connected in the C slot or should I separate it? Thanks for any input . 6:26
Super simple to follow thank you
Thanks for being a subscriber! I appreciate the support!
@@OneHourSmartHomewhat happens if I had an old furnace and there isn't a ground wire but my New one needs it is there hey, we need to run a ground wire without going in the Attic or underneath the house
Great video. Outstanding explanation.
Very clear explanation. Thanks for sharing
Thank you, even somebody as dumb as me understood this. Very helpful!
Best explanation I've heard. Thanks!
Excellent video in every respect. Only one situation NOT covered. How can a person install a C wire to an OLD SYSTEM NOT HAVING A MAIN MODERN MOTHERBOARD ON THE FURNACE???
exactly, I dislike that for that reason
I had to log in just to like n subscribe, Great explanation, thank you so much!
Great video. I have both the blue and green wire connected to the C on my old iComfort thermostat. Trying to upgrade to the Nest 4th gen thermostat , can I connect green and blue wire to the C slot in the Nest thermostat or do I separate them?
Great video! I have my green and blue wire connected together in the C on my old iComfort thermostat. I’m upgrading to the Nest 4th gen thermostat, do I keep the blue and green wire connected the C slot or should I separate it? Thanks for any input .
excellent explanation
Perfect explaining 🫡
Thanks now I know what the C wire is.
this was very informative but I dont have an extra wire so I was going to move G to C, as explained. However, you say change it to C at the HVAC system. I have a split system so are we changing it at the heater, condensor, or both?
I vaguely recall.... After moving G wire to C, don't you need a jumper wire between G terminal and Y terminal ?
This was ridiculously informative, tysm
Thanks a lot for the great video. I have AC (cold/hot) and there are 3 wires only. The existing thermostat has a digital screen but no back light even. Any suggestion on how can I install a smart thermostat? The AC is a split unit where there is an external unit and ceiling mounted internal unit.
Hi ,can i used first generation nest with a heat pump sistem??? If so do you have a video explaining how to install
The wires
Great explanation, TY
Thank you!
When a disconnected C Wire is found at the thermostat, do you assume it’s connected at the HVAC Unit? Is there a way to determine this at the thermostat?
In case if it helps someone, if there's no C terminal on the thermostat, don't attack the blue wire to anything. Tape it and put away.
Thank yu for the info
Great video, thanks.
great video!
Is the C wire always blue?
I would double like this video if I could
My C wire is black is that okay?
C wire is like finding the G spot. 😂
I'm not a professional, but I wouldn't be comfortable getting rid of my ground for any wiring (even low voltage) running through my walls. That just seems like asking for trouble.
G doesn’t mean ground in this case. There’s no “ground wire” for the thermostat - actually the C wire is closer to the typical function of a ground wire than any of the others (it’s an unloaded negative path).
@@nekkrist He was talking about the common wire. Which is the other side of 24v transformer. Common at the thermostat was not needed in old analog thermostats . They are nothing more than a set of switches switch. Hot and common to a switch goes boom. Fork in the light socket experiment proves this! Then came digital thermostats. Rather have a new wire ran a battery was enough to power the display. Now that we have fancy thermostats with wifi we need power and common or it will not be able to operate
Great video! I have my green and blue wire connected together in the C on my old iComfort thermostat. I’m upgrading to the new Nest 4th gen thermostat, do I keep the blue and green wire connected in the C slot or should I separate it? Thanks for any input . 6:26
Great video. I have both the blue and green wire connected to the C on my old iComfort thermostat. Trying to upgrade to the Nest 4th gen thermostat , can I connect green and blue wire to the C slot in the Nest thermostat or do I separate them?
Great video! I have my green and blue wire connected together in the C on my old iComfort thermostat. I’m upgrading to the new Nest 4th gen thermostat, do I keep the blue and green wire connected in the C slot or should I separate it? Thanks for any input . 6:26
Great video. I have both the blue and green wire connected to the C on my old iComfort thermostat. Trying to upgrade to the Nest 4th gen thermostat , can I connect green and blue wire to the C slot in the Nest thermostat or do I separate them? Thanks for your input.