Thermostat temperature reading is significantly higher or lower than actual room temperature

Safety: No electrical work is required.

• Check location: Ensure the thermostat is not installed above supply registers, near exterior doors, in direct sunlight, or above electronics that generate heat.
• Compare with reference: Place a reliable thermometer near the thermostat and compare readings after 15–20 minutes.
• Adjust calibration: In the Lux thermostat settings, use the temperature calibration or offset feature to correct minor differences (e.g., ±2°F).
• Relocate thermostat: If the location is poor, have a professional relocate the Lux wall plate and thermostat wiring to a more representative interior wall.
• Replace thermostat: If the sensor is off by a large amount and calibration cannot correct it, the internal sensor has likely drifted and the thermostat should be replaced.