Let's break down why the Google Nest Doorbell puck (often called a chime connector or chime kit) is causing your chime to not ring, and why Google recommends using it

Understanding the Puck (Chime Connector)
Function

The chime connector is designed to regulate the power sent to your existing mechanical chime. The Nest Doorbell needs constant power to operate, but traditional doorbell systems only provide power when the button is pressed. The chime connector essentially "trickles" power to the doorbell to keep it running while also allowing the chime to ring properly when someone presses the button.

Why it's needed

Without the chime connector, the Nest Doorbell can draw too much or too little power, leading to several issues:

Chime humming or constant ringing

The doorbell might try to draw power continuously through the chime mechanism, causing it to hum or even ring faintly even when no one is pressing the button.

Power instability

The doorbell might not receive enough power to function reliably. This can lead to: Frequent disconnections from Wi-Fi. Loss of features (like recording or live view). Premature battery failure (if it's a battery-powered model, even if wired). Overheating.

Chime malfunction

Over time, the constant trickle of power can damage the chime mechanism itself.

Why the Puck Isn't Working (Possible Causes)1. Incorrect Wiring

This is the most common issue. Double-check the wiring diagram provided by Google, and ensure you've connected the chime connector wires to the correct terminals on your chime. Common mistakes: Wires are not secured properly Wires touching each other2.

Incompatible Chime

Although the Google Nest Doorbell is generally compatible with most mechanical chimes, there might be a rare incompatibility. To check what kind of chime you have follow this Google support article: [https://support.google.com/googlenest/answer/9247132?hl=en](https://support.google.com/googlenest/answer/9247132?hl=en)3.

Faulty Chime Connector

It's possible (though less likely) that the chime connector itself is defective. If you've tried everything else, consider contacting Google support to see if they can send a replacement.4.

Incorrect Doorbell Settings

In the Google Home app, there are settings related to the chime. Make sure the settings for your mechanical chime are selected.

Troubleshooting Steps


Review Wiring

Carefully compare your wiring to the diagram in the Google Nest Doorbell installation instructions. Look for:

Correct Terminals

Make sure you've connected the wires to the exact terminals specified in the instructions.

Loose Connections

Ensure all wires are securely connected to the terminals.2.

Power Cycle

After making any wiring changes, try power cycling the doorbell: Turn off the breaker that powers the doorbell circuit. Wait a few minutes. Turn the breaker back on.* Give the doorbell a few minutes to reconnect to Wi-Fi.3.

Check Chime Compatibility

Use the link from above to check your chime compatibility.4.

Factory Reset the Doorbell

As a last resort, you can try factory resetting the doorbell and setting it up again. This will erase all your settings, so back up anything important first. The process varies depending on the doorbell model, so refer to Google's support documentation.

Why Google Says it's Harmful to Run Without the Puck:

Google's warning about premature failure without the chime connector is valid. As explained above, the doorbell needs a constant power supply, and drawing power directly through the mechanical chime without regulation can cause damage to both the doorbell and the chime over time. Flag for review