Blinking yellow light on Nest Doorbell (wired)

A blinking yellow light means that your Google Nest Doorbell (wired) isn’t getting enough power. It may turn off your video stream to preserve battery life, but it should continue to work as a regular doorbell. You may need to upgrade the transformer that the chime’s wires are connected to. Contact a local pro to have them check the voltage and install a new transformer. Nest Doorbell lights and sounds