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No bent pins on the display, all buttons are down, charged display for
over an hour. As another test, I relocated a base from a second Nest
Learning Therm to the failed location, and the "new" base worked with
the the original display. Put the origin...
I'm having almost the same issue. Came home to blown 3A fuse on the
28VAC (Rc) line and message on Nest saying same as yours. I replaced the
3A fuse (inside the blower unit), connected the dial to USB charge
cable, waited an hour, the dial says to "r...