Google Nest Community

Cip54 · 09-24-2022

I’ve posted elsewhere under the N72 posts. I have 4 learning thermostats. My HVAC system has three air handlers for A/C and 5 zones (Honeywell valves) for hot water baseboard heating.One Nest is on a heat only zone. One is on an A/C only zone. The ot...

Cip54 · 07-19-2023

I had the exact same experience. For me, the N72 error had no effect on my system, just a nuisance. Do you have functional issues? As I mentioned earlier in this post, I found that the Fast Stat common maker has the Nest believing there is a C wire, ...

Cip54 · 12-20-2022

I’ve posted a number of times on this thread. I am convinced that my thermostats worked for a few years but eventually the battery can’t charge adequately and then they stop working properly. I have 2 heat/cool thermostats. Added the Nest Power Adapt...

Cip54 · 10-26-2022

For me (fortunately) the error seems like a red herring. Sometimes the thermostat has it, sometimes not. But both of my dual purpose Nests heat just fine even with the error. You would think that the company would at least respond to this issue. FYI ...

Cip54 · 10-25-2022

Do you have a C wire from the A/C? You could try using that one instead of the C from the boiler. For example with the Fast-Stat common maker they recommend using the new "C" wire in the air handler instead of the furnace.

Cip54 · 10-03-2022

I just installed a "common maker" from fast-stat. Easy to install if you can access your furnace: https://smile.amazon.com/Fast-STAT-Common-Maker-Popular-Thermostats/dp/B07G2NGFKH/ref=sr_1_1?crid=1Y0OZ0FV9C7VM&keywords=fast-stat+common+maker&qid=1664...

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