It sounds like you might be experiencing a glitch with your Nest Gen 3 Heat Link, causing it to turn on and off unexpectedly. Here are a few troubleshooting steps you can try:
1. **Restart**: Try restarting your Nest Gen 3 Heat Link by turning it off for a few minutes, then turning it back on.
2. **Check Power**: Ensure that the Heat Link is receiving consistent power and that there are no issues with the electrical connections.
3. **Update Firmware**: Make sure your Nest Gen 3 Heat Link is running the latest firmware. Sometimes, software updates can resolve unexpected behavior.
4. **Reset**: If the issue persists, you might need to perform a factory reset on the Heat Link. Refer to the manufacturer's instructions for how to do this.
5. **Contact Support**: If none of the above steps solve the issue, it might be a hardware problem. Contact Nest customer support for further assistance or to inquire about warranty options.
