If your Emerson Sensi thermostat keeps changing its target temperature unexpectedly, the behavior is typically caused by active smart scheduling, geofencing routines, or auto-rollback energy-saving features enabled in your mobile app settings. Additionally, if the unit suffers from low-voltage power fluctuations due to a missing C-wire, internal reboots can reset active manual holds back to default programmed schedules. Verification: Check the schedule and geofencing settings in your Sensi app to disable automated temperature overrides if desired.
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