Nest thermostat does not detect motion and does not wake up or follow occupancy schedule

Safety: No electrical work is needed for basic checks.

• Clean sensor window: Gently clean the front of the Nest with a soft, dry cloth to remove dust or smudges.
• Check settings: In the Nest app, verify that Home/Away Assist and motion‑based features are enabled.
• Observe behavior: Stand directly in front of the Nest and move your hand; the display should wake. If it does not, restart the thermostat.
• Relocation: If the Nest is in a hallway with little traffic, consider relocating it or relying more on phone‑based presence detection.
• Replace thermostat: If the PIR sensor never detects motion despite correct settings, the sensor may have failed and the Nest should be replaced.