Nest Protect says sensor has failed only during high humidity

[Nestuva]

Hello, my Nest protect seems to work fine until we open the windows on a humid day. At that point the Nest Protect usually chirps and says there's a problem with the sensor. As soon as we close the windows and run the AC to reduce the humidity, the error goes away. Is there anyway to fix this problem??

[AxelD]

Hi Nestuva,

Thanks for posting in the Community! Sorry to hear that every time you open the window the Nest Protect chirps. No worries, help is here! Please provide the following information to get the right troubleshooting for you:

1. What Nest Protect model do you have?
2. Is it doing a single chirp every 60 seconds?
3. Have you replaced the batteries? Nest Protect requires Energizer Ultimate Lithium AA (L91) batteries.
4. Is the Nest Protect near any air vents, fans, windows, or other sources of air flow that could bring dust or foreign particles into the detection chamber?
5. When was the last audio test?
6. Where is the Nest Protect installed (room, ceiling, or wall)?

Keep me posted.

Regards,
Axel.  

[Nestuva]

Hello,

model-2nd gen

Chirp every 60 seconds

i have tried replacing batteries with those specific batteries (I only use those since they are recommended)

no, it is in the middle of the room

it does an audio check monthly and passes no problem

its installed in our living room, dining room, kitchen area on the ceiling

To reiterate, it seems to be directly related to humidity levels in the room 

[AxelD]

Hi Nestuva,

Thanks for replying and the information provided! If after changing the batteries and using the recommended ones and it passes the monthly audio check, there might be something happening with the unit. No worries, please fill out this form and an agent will contact you as soon as possible with further troubleshooting. Remember to add your thread conversation link to the request.

Let me know once you’ve filled out the form.

Regards,
Axel.

[Nestuva]

Submitted!

[chaconmorales]

Hi Nestuva,

We've received your form and appreciate the details you provided. Please keep an eye on your email, as someone from my team will contact you shortly to help. If you have any questions or concerns in the future, feel free to reply to this post.

Regards,

Mario

[AxelD]

Hi msawyer91,

Thanks for posting in the Community! I really appreciate you for sharing your experience with the Nest Protect that was affected by the humidity levels in the room. Your feedback is valuable to us as we continue to improve our products. Please feel free to share any additional insights or suggestions you may have.

Regards,
Axel. 

[msawyer91]

We had this issue with the Nest Protects in our basement storage room in the summer of 2022 and 2023. If we kept the door closed to that room, the humidity in the room would get high and one or both would alert. I was able to mitigate this by running a dehumidifier in there. There's a sump pump in this room which likely enhances the humidity.

This past summer (2024), I just kept the door open to the room since a dehumidifier running 24/7 uses a lot of electricity. Neither unit in that room ever complained of a problem. That would seem to confirm these things are humidity-sensitive for sure.