nest wifi issues.

[johncella]

I have 3 thermostats. One of them several times a day is showing offline, then goes back on line. What can be causing this and is there a fix. My 3 units are roughly 7 years old.

[Houptee]

No C wire is usually the reason for it dropping off the wifi because it doesn't get good steady power from the wires.

Then the battery gets low and it goes offline.

[johncella]

• I have a c wire connected to all 3 units. 

[johncella]

All my 3 thermostats are hard wired. The one having issues is roughly 10 years old. But, still works fine otherwise

[Houptee]

Probably the batteries are failing in all of them. I'm not familiar with the old Nest models. Look up how to test the battery voltage in the menu and if below 3 volts they are probably done. I think they are sealed inside and not easy to replace on all the models other than the Nest mirror glass.

This shows how the voltages should normally be on the newer 3rd gen.

https://youtu.be/GHkfnRp6Tj8

[johncella]

The voltage is 3.9 in all 3 thermostats. It would be nice if they had a phone number to talk with customer service. 

[Houptee]

Did you watch that video link i posted? What did the other readings show?

Battery Volts

Voc

Vin

Lin currrent in mA

[johncella]

When can I find your video!

volt 3.930

voc 36.17

[johncella]

volt 3.930

voc 36.17

vin 36.17

lin 100 Ma c

[johncella]

when is your video?

[Houptee]

This is the video but your numbers look good.

https://youtu.be/GHkfnRp6Tj8

[johncella]

Thank you for your input. Do you have a phone number to speak to a nest teck? The crazy thing is this thermostat is the closest to my router 

[Jake]

Hey there,

Thanks for the help Houptee.

Apologies for the delayed reply. I wanted to follow up and see if I could be of any help. You can contact support by following the link here. Please let me know if you have any questions from here, as I would be happy to assist.

Best regards,
Jake

[Jake]

Hey there,

I wanted to check in and see if you are still in need of any help. Please let me know, as I would be happy to assist, and answer any questions you may have.

Best regards,
Jake

[EmersonB]

Hi everyone,

@johncella, just one quick final check in here since activity has slowed down. We'll be locking the thread in the next 24 hours, but if you still need help, we would be happy to keep it open. If there's more we can do, just let us know.
 
I appreciate the help, Houptee and Jake.
 
Regards,
Emerson