Answer to: Where can I purchase parts for the nest 2nd generation thermostat?I tried to find a replacement part on eBay and other sites. No success. Called customer support after I read your post and they declined to sell me a replacement but offer a coupon for an upgrade. My Nest is working perfectly but now it's a paperweight. How long did you have your nest before losing the base? They wont sell you or give you a replacement part no matter what you do if you're past the two year warranty.