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My nest thermostat display intermittently turns off 0 Recommended Answers 3 Replies 0 Upvotes
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My nest thermostat (v3) is about 2 months old. It’s been installed using the old thermostat wires to the nest base unit.  In the last 2 weeks the display has been behaving erratically. Sometimes it works fine sometimes it won’t turn on. Farsight settings don't seem to effect it either way from the norm. Power to the unit and battery all seem normal (10.5-11v, 3.9v battery, 100ma iirc). If I take the unit from the wall mount the lights on The top flash amber and then green,  but still no display. If I put it back and fiddle with the app the unit sometimes springs back to life. At all points I can hear the click so I know it’s still Working fine, and via the app I am able to see temps etc. Even if i stuck a usb cable in the back the display doesn’t necessarily come back on. 

I think I have a faulty nest thermostat but I don’t want to return it as it’s all plumbed in and it’s only the display unit that seems to have failed?
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Thank you for bringing this to our attention and we appreciate your time doing all the troubleshooting to get this fix. Looking on the e-mail address that you used in this forum looks like you had contacted one of phone support and they had processed a replacement for it. 
Let me know if you need further help.
All the best, 
Rochelle Ann G.
Last edited 11/22/19
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Thanks Rochelle - as it happens I ended up talking to Nest support yesterday and I am being sent a replacement thermostat display.
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Hello Richard Oliver
Thanks for the update, glad that you had contacted our  phone support team and had the device replaced, if you need any help feel free to reach us again.
Rochelle Ann G.
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