Thermostat does not follow programmed schedule or changes temperature on its own

Safety first: No electrical work is required for this issue.

Steps to troubleshoot:

• 1. Verify schedule status: On the Emerson thermostat or app, confirm that scheduling is enabled and that no permanent hold is active.
• 2. Check time and day: Ensure the thermostat’s date, time, and time zone are correct so schedule periods trigger as expected.
• 3. Review smart features: Disable geofencing, occupancy-based control, or third-party integrations (Alexa, Google, HomeKit) temporarily to see if they are altering setpoints.
• 4. Sync with app: Force a sync by making a small schedule change in the app and confirming it appears on the thermostat.
• 5. Factory reset: If behavior remains erratic, perform a factory reset and reprogram the schedule from scratch.

When to call a professional: For complex smart home setups, consult with a home automation specialist or Emerson support.