Thermostat does not follow programmed schedule; heating turns on/off at wrong times.

Safety: No mains work is required for schedule adjustments.

• Verify time/date: Set the correct current time, day of week, and time format (12/24h).
• Review schedule: Go through each programmed period and confirm start times, temperatures, and days assigned.
• Check time zone (smart models): Ensure the app and thermostat are using the correct time zone and that daylight saving settings are correct.
• Firmware update: Update to the latest firmware to fix known scheduling issues.
• Factory reset: If behavior remains erratic, perform a factory reset and reprogram the schedule from scratch.