Comments on: Nest Battery Voltage Explained

By: Miguel Arnaldo Berly

Miguel Arnaldo Berly — Sat, 16 Jul 2022 02:04:45 +0000

My nest thermostat don’t have a reading for Voc, Vin or Lin. I reset the system and no change happened. The system is 1 and have year old.

By: Esai

Esai — Sun, 19 Sep 2021 19:11:05 +0000

In reply to Gordo.

Probably, you are missing a C-wire. I had seen similar issue with my friend. Following the above mentioned solutions would fix the problem.

By: Gordo

Gordo — Sun, 31 Jan 2021 00:07:00 +0000

Thanks for providing the ideal ranges for Voc, Vin, and lin. It’s helpful to know these, as I am trying to resolve a low battery issue with multiple Nest thermostats. They all worked fine for 2-3 years, but now they are all going into low battery mode every few days. It seems that when the units are calling for heat, they start to run low on power.

Knowing the ideal ranges for these values is helpful, but I would like to know what Voc, Vin, and lin actually mean… any insight there?

Also, on the value for lin, I see something like 40 mA (i) or 20 mA (a) — any idea what the i and a mean?

Thanks so much for your help!!