i cannot use thermostat: Cannot find "C-wire" on furnace

[dimsaz]

I bought thermostat, then "c-wire power connector" but i cannot install it because there are no control board on furnace and there are no c-wire on furnace. 

Google support said my furnace is compatible with nest thermostat.

but how it can be installed? I even ordered professional installation for $150, guy arrived just to tell me what my furnace have no visible C-wire and suggested me to return nest thermostat. Google professional installation guy suggested me to return it.

but i still believe what problem can be solved. Somehow. 

How?

P.S. what is the f... is this C-wire anyway and why nothing works without it? this is just ridicules how complicated is google thermostat installation  

[Jake]

Hey there,

Sorry for the trouble. I wanted to follow up and see if I could be of any help. I found an article with more details on the Nest Power Connector. I also found an article with more details on the C wire. Please let me know if you are still having any trouble from here, as I would be happy to take a closer look and assist you further. 

Best regards,
Jake

[dimsaz]

I read these articles, they don’t help. My furnace doesn’t have visible C-wire. Therefore there is not way to attach “power connector”. You don’t have instructions how to solve this. “Power connector pro” has some diagram which involves transformer. But diagram uses 2 wires from transformer (without explanation what kind of wires). When i bought transformer I realized it has 3 wires! So I cannot use it. 
I also tried to call “nest pro”, who happened to be non-competent: he didn’t understand transformer. He didn’t even tried anything, but said “you need to buy … new furnace”. That’s ridiculous. Nest support said my furnace is fine and can be used with nest. 

so I need detailed instructions: how to connect thermostat to “heat only” furnace which doesn’t have c-wire visible (but I have 5 other wires on control board)

thanks. 

[Jenelyn_O]

Hi there,

Chiming in — I'm sorry for the delay. I just want to know if you are still encountering the issue. Please let me know as I'll be willing to assist you from here. 

@Jake, I appreciate your help.

Best,

Jenelyn

[Jenelyn_O]

Hi there,

I wanted to follow up and see if you still need help. Please let me know if you are still having any concerns or questions from here, as I would be happy to take a closer look and assist you further.

Best,

Jenelyn

[Jake]

Hey there,

I wanted to check in, and let you know that I will be locking the thread in 24 hours.

Best regards,

Jake