Nest Power Adapter to Argo ARM 6P

Chasb

As I replaced my old 2-wire thermostat with a Nest thermostat, I installed a Nest Power Connector to my Argo ARM 6P controller. See photo. The thermostat gives me a N260 error, idication the C wire is abscent and cannot connect to wifi. I this wire configuration correct?

Jamie Hall

You need the C wire from the adapter to go to the Nest, not the Argo…

EdTheHeaterMan

https://forum.heatinghelp.com/discussion/comment/1873238#Comment_1873238

Actually looking at the instructions for the Nest Power Adaptor, you have it properly wired. The nest power adaptor is designed to make the Nest operate without adding the C wire.

There may be something in the thermostat programing that needs to be set to tell the thermostat that you are using the Nest Power Adaptor. You should be able to charge the thermostat with a USB connector that might be like the one on your phone in order to fully charge the thermostat before you can get to the programing part of the thermostat.

Check that you have the Red from the Power Connector connected to the R on the NEST and the W on the Nest connected to the W/Y on the power connector. Your diagram is correct, check that you actually wired it the way you have drawn it.