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John MartinezSep 12, 2025
What to do if my Honeywell Lyric T6R Thermostat displays an 'Indoor Temperature Sensor Error'?
- JJane KleinSep 12, 2025
If your Honeywell Thermostat displays an 'Indoor Temperature Sensor Error', it means the external temperature sensor is not connected or the wiring is faulty. Check the external sensor wiring and the sensor itself.