July 21, 2019

Nest Thermostat Power

One of the nice things about the Nest Thermostat is that it keeps the temperature in the house the same all day long.

Back in late-May, we inadvertently discovered another benefit - it will stop working if the air filter is full.

Nest Power Issue

Not Enough Power

We notice that the Nest console wasn't getting enough power. We knew it couldn't be a battery issue since we connected the device to the existing thermostat - and that had power.

After some investigation, it turns out the problem was the air filter was dirty. As a result, it was slowing the flow of air through the filter.

This caused power to be reduced to the Nest, and it stopped working.

Quickly Got it Working Again

I ran down to Lowes and purchased a replacement filter, installed it. After a few minutes, the Nest was working again.

To prevent this from happening again, I set up a reminder to install a new filter in late August.

So if your Nest Thermostat suddenly stopped working, you may want to check the air filter.

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