An Ecobee smart thermostat has an expected operating lifespan of 10 to 15 years, combining robust solid-state microelectronic circuits, color touchscreens, and digital relay switches. While traditional electromechanical thermostats can last for decades, smart thermostats manage internal Wi-Fi radios and power circuitry that can gradually degrade over time. Proper installation with a dedicated C-wire ensures stable power delivery and maximizes device longevity. Verification: Monitor the device for Wi-Fi dropouts, unresponsive touchscreen interfaces, or power reboot loops that indicate aging internal hardware.
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