Nest Thermostat Changed the Temp Itself (after 4-years of no issues)

[Audiophile]

The Nest Thermostat was installed in a new house/HVAC system approx. 4-years ago.  Until today, it has functioned without an incident like this.

Today, the Nest changed itself to 68, when it was scheduled at 64! 

The thermostat IS set to Heat.

There are 3-heating schedules -- none EXCEED 64-degrees!

What happened? 

Why did the thermostat set itself to 68-degrees?

How can a similar incident be prevented in the future?

**** THERMOSTAT INFORMATION ***

Model = Nest Learning Thermostat Display (3rd Generation)

Backplate model  = Backplate-5.4

Software = 6.2-27

Updated =  May 4, 2022 4:05 AM

*** SETTINGS ***

Eco Temperatures = OFF

Sensor Schedule = OFF

Auto Schedule = OFF

Time to Temp = Ready

Early On = OFF

Cool to Dry = OFF

Sunblock = OFF

Leaf = Ready

Airwave = Off

Fan Schedule = OFF

Eco Temps = OFF

Safety Temps = 45 & 98

[Markjosephp]

Hello Audiophile,

I'm sorry to hear you're having an issue with your Nest Thermostat that randomly changes its temperature. I'd be happy to take a look at this for you.

A few questions: is this the first time it occurs? Were there any of your family members who had access to your thermostat through the app? Also, are you enrolled in an energy-saving program with your utility company, such as Nest Renew or Rush Hour?

I'll look forward to your response.

Regards,

Mark

[Markjosephp]

Hey there,

I wanted to follow up and see if you are still in need of any help. Please let me know if you are still having any trouble from here, as I would be happy to take a closer look and assist you further.

Thanks,

Mark

[Jake]

Hey there,

I wanted to check in, and let you know that I will be locking the thread in 24 hours.

Best regards,

Jake