Nest reading higher temperature than actual

[giusgior]

My nest thermostat constantly reads circa 1°C higher temperature than actual temperature in the room and, more annoyingly, sometimes it has sudden jumps of readings, e.g. from 18.5°C to 20.0°C almost instantaneously. Just a constant temperature offset in reading wouldn't be a problem - although you don't expect this from a very expensive thermostats - but the sudden changes in temp reading can cause the system to not go off and not warm the house when needed! 

Is there any fix to this?

TechSpecs:

Modello	Display-3.7
Modello piastra supporto	Backplate-6.5
Numero di serie	09AA01AC352201L5
Software	5.9.5-2
MAC	cca7c1495095
IP	192.168.178.58
Ultimo contatto	Da poco
Batteria	3.94 volt

[Jhonleanmel]

Hey giusgior,

Thanks for posting.

A few question:

What type of Nest thermostat do you have?
When was the thermostat installed?
Where did you install your thermostat? (in a room and on a wall or stand) 
Do you have other active Nest thermostats? If yes: Do they show the same issue?
When did the issue start?
How big is the difference between the readout of the Nest thermostat and your thermometer or other thermostats?
Have you tried any troubleshooting steps? If yes: Would you mind listing them?

Give these steps a try:

Go to Settings > Technical Info > Network.
Check for the Signal strength value.
Restart the thermostat
Turn on Sunblock
Check if the thermostat is near a heat source

Keep us posted.

Best
Mel

[EdwardT]

Hi giusgior,

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,

Edward

[EdwardT]

Hi giusgior,

I'm just checking in to make sure that you've seen our response. Please let us know if you have any other questions or concerns as I will be locking this in 24 hours.

Thanks,

Edward