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Nest thermostat charging issues believe gen 3 learning nest thermostat

Josh3044
Community Member

‎05-28-2022 11:38 AM

Need help my wifi went down on my nest thermostat and say low power I've been charging it but dosnt seem to charge I need help 

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CoolingWizard
Platinum Product Expert
Platinum Product Expert

‎05-28-2022 12:27 PM

The Nest Learning Thermostat, Generation 3, charges by the HVAC 24VAC system.  It receives the power via the R and C terminals. If you have a Volt Ohm Meter you set it for AC Voltage, put one lead on the R and the second lead on the C and you should read  between 23 and 27 VAC. 

NestPro, Google Pro, Mechanical Engineer and HVAC service company owner.
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Patrick_Caezza
Platinum Product Expert
Platinum Product Expert

‎05-28-2022 09:57 PM

How do you have your Google Nest Thermostat wired? Is there a C wire installed?

Nest thermostats are designed to work without a common ("C") wire in most homes. During installation, a small number of customers may find that the Nest Thermostat does not receive sufficient power. The Nest Power Connector or a C wire may be necessary. See g.co/nest/cwire for details.


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