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Nest Thermostat Loses Power

Govols22
Community Member

Hi, I have a total of 3 nest devices in my townhome and one of them is randomly shutting off due to losing power. It states that the rh cable is not connected. I’ve taken off the nest and confirmed the cable is in fact connected. When I reset the power from the power box it seems to get it working again and problem is solved. But unfortunately after several hours it will go through the same problem. I’m not sure if this is a nest issue or an HVAC issue at this point and any help would be greatly appreciated!

15 REPLIES 15

Markjosephp
Community Specialist
Community Specialist

Hello Govols22,

 

I'm sorry to hear that your Nest thermostat is not holding a charge. I'd be happy to take a look into this for you.

 

It appears that your system may not provide enough power or any power to either the thermostat or a specific wire (so the thermostat can’t complete a circuit and shows the message). Let's sort this out.

 

  • Gather the power readouts from the thermostat.
    • Settings > Technical Info > Power (Battery Level, Voc, Vin, and Lin).
  • If you have, remove the C wire and leave it disconnected.
  • Check the air filter. A clog in the air filter can limit how much air flows over the cooling coils. If the clog persists, the cooling coils can freeze, causing the  system to shut off.
  • Check the condition of the HVAC fuse. If the HVAC fuse burns out, the system may cut off the power to the thermostat and cause a wire report.

 

I'll look forward to your response.

 

Best regards,

Mark

Princesss
Community Specialist
Community Specialist

Hello there,

 

Chiming in to see if you still need assistance with this. Hope the previous post helped. Let us know if you have additional questions, otherwise we’ll be locking the thread.
 

Best,

Princess

Hi! Sorry was planning on testing it out as soon as possible. Unfortunately I am working nearly everyday and haven’t had the chance to test it out as I need to call maintenance since I am in a townhome unit within an apartment complex so I need to find time throughout the day to get the key. 

Dan_A
Community Specialist
Community Specialist

Hello everyone,

 

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

 

Regards,

Dan

Govols22
Community Member

Thank you so much for your advice! I had one of the maintenance people come and they changed the filter and it worked for a bit. The problem is that it works but then stops so it’s hard to tell if the situation is resolved or not. It stopped working but turns out the internet went out so it stopped for all of the thermostats. I will continue to monitor to see if the problem persists. Since I don’t have access to the AC unit since it’s a rental townhome inside an apartment complex I don’t have access to the HVAC generally. 

Dan_A
Community Specialist
Community Specialist

Hi Govols22,

 

So glad you're able to find a different way for this to be isolated. Even though there were hiccups doesn't mean we can't get this resolved. We'll closely monitor for now since there are still some concerns with your internet.

 

Keep me posted.

 

Cheers,

Dan

Govols22
Community Member

Thank you for your help! It was working well all day but later at night I noticed that it was off. This generally occurs at night after it’s being used during the day. When it’s not currently being activated on eco it’s not usually an issue. This notably happens after cooling. 

EdwardT
Community Specialist
Community Specialist

Hi Govols22,

Thanks for letting us know. I'd love to know more about this. How is your Nest Thermostat wired? Also, please check the power reading of your Nest Thermostat by going to Settings > Technical Info > Power.

Thanks,

Edward

EdwardT
Community Specialist
Community Specialist

Hi Govols22,

It's me again. I wanted to check back in to see if you have other questions and concerns. Feel free to let me know if you do.

Thanks,

Edward

EdwardT
Community Specialist
Community Specialist

Hi Govols22,

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

Govols22
Community Member

Hey Edward,

It appears that the thermostat still turns off when it’s set to cool. But due to the weather it has been on heat with no problem. It seems like it has to be something within the AC itself.

Markjosephp
Community Specialist
Community Specialist

Hello there,

 

Thanks for getting back to us, @Govols22. I'm dropping by again to see more about this.

 

Could you share a photo of your thermostat's wiring with us? Also, what type of Nest Thermostat do you have?

 

I'll look forward to your response.

 

Regards,

Mark

Hi Govols22,

 

I'm checking back in — how's it going? Still need our help? Let us know so we can assist you right away.

 

Regards,
Mark

Hello Govols22,

 

It has been a few days since your last reply, and I am going to lock the thread in 24 hours. If you have any questions, please feel free to create a new post.

 

Regards,

Mark

Dan_A
Community Specialist
Community Specialist

Hey there,

 

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

 

Thanks,

Dan