Buzzing doorbell chime in cold weather with Google Nest (2nd gen)

[tone33s]

I installed a Google Nest Wired Doorbell (2nd Generation) this past summer and it was working great until the weather turned cold. Now, as it's cold out, I have the buzzing problem at the chime. I've read several other posts about this problem from other users, but those are all a few years old and didn't provide any clear solutions, so I thought I'd try a new post to see if any new advice had been developed.

I installed a new transformer (16v, 30VA) when I installed the doorbell, and I know there is adequate power. I've checked the wiring multiple times and I know there are no issues there. I do have the puck installed.

I've seen some recommendations online suggesting installing a resistor into the chime box, but I know the puck should be serving the same purpose. Is there any merit to adding a resistor in addition to the puck? If so, should it be wired inline with the puck or parallel and what specs should the resistor have?

Another thought, is there a recommended chime box if I were to replace it? I'm fine with getting a new chime box... I just want the buzzing to stop.

Or are there any other solutions?

[ByronP]

Hi tone33s,

Thank you for posting in the community. I see you’re having trouble with your Google Nest Doorbell Wired (2nd Gen) that the chime buzzes during cold weather, even though you installed a new transformer. I understand you saw a few suggestions online about installing a resistor into the chime box. I appreciate all the troubleshooting steps you’ve already taken. I’m here to help.

Nest doorbell devices are designed to be able to withstand extreme temperature conditions. However, if Nest doorbells keep operating at or above 104°F (40°C), the chime may stop working and if the device's internal temperature drops below 25°F (-5°C) it might lose power.

To better assist you, please answer the following questions:

• Could you send me a picture of your wiring installation (the chime, the transformer, and chime connector)?
• Have you installed the chime connector that came with the new Nest Doorbell?
• Do you have a mechanical or electronic chime?

Please keep me posted on your findings.

Regards,

Byron

[tone33s]

Hi Byron,

Thanks for your response. The performance is definitely weather-related, as the buzzing stops on days when it warms up but starts back up when the temperature drops below zero. 

The pictures you requested are included below. I do have the chime connector installed, as you can see in the picture of the chime. It is a mechanical chime.

Thank you.

Chime box & puckTransformer

[ByronP · Accepted solution]

Hi tone33s,

Thank you for your reply. I appreciate all the detailed information and pictures you provided.

Based on your answers, please follow these recommendations:

Step 1: Warm up the Nest Doorbell.

• Turn off the breaker(s) for the doorbell and chime.
• Use the removal tool included in the box to remove the Nest doorbell from its wall mount and disconnect the wires.
• Bring the device inside and allow it to warm up to room temperature in a warm, dry place. (Do not wrap it in a heated towel or place it near any heating elements).
• After the device has warmed up, please reinstall the doorbell before the device temperature falls outside of operating temperatures, or wait to reinstall the doorbell on a warmer day. Remember to turn the breakers back on after installation.

Step 2: Check the wires for your chime and puck.

Checking your first picture, it appears you have slightly loose wires. Please do the following:

• Ensure there are no loose or exposed wires that could touch another wire for your chime box, puck, and the doorbell wall plate.
• Verify that all wire connections are tight, secure, and free from corrosion or dust.
• Since your chime is mechanical, please ensure that the chime duration is "off" in the doorbell's settings within the Google Home app.

Please let me know how it goes.

Regards,

Byron