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Original Poster: Charles Kiederer
Getting a 260 power message on my Nest that I just installed. I have no C wire and there is no C terminal on my aquastat to connect the C wire from a Nest Power Connector. So, I might try connecting an external plug-in 24 vac adapter directly to the Nest base on the wall. The Nest base has Y, C & W terminals on the left side and G, R & OB terminals on the right side. Across what two terminals on the Nest base should I connect the external 24 Vac adapter. It's a heat only system with only two wires that are currently connected to to the W and R terminals. Thanks for any help.
