Transformer for C-wire, will a 24VAC 6VA work?

[dstrains]

Hi,

 The Nest Thermostat is calling for a Nest Power Connector, and since the system has no C connection point, it requires a external transformer of 24VAC 20VA.  Since I have a 24VAC 250mA transformer, which equals 24VAC 6VA, will it work?  Has anyone tried this?

[zoeuvre]

Hi dstrains, 

Thanks for posting here in Community and I'm sorry for the late response. 

Third-party C-wire adapters can cause problems or damage your Nest thermostat, even if they claim to be Nest compatible. Since your system has no C connection point, you have two choices: hire a professional installer to run a new C wire from your system to your thermostat, which can be expensive; or install the Nest Power Connector, which is typically easier and more economical and ensures compatibility and best performance with your thermostat.

Let us know if that helps.

Best,

Zoe

[Jenelyn_O]

Hi there,

Chiming in — I hope you get the answer you're looking for. Please let us know if you still have any questions or concerns, as I'll be willing to take a closer look and assist you further. 

I appreciate your help, Zoe.

Thanks,
Jenelyn

[Jenelyn_O]

Hello there,

I'm just checking in to make sure that you've seen our response. Please let us know if you have any other questions or concerns, as I'll be locking this thread in 24 hours.

Best,
Jenelyn