Programming my new Lux thermostat had me completely stumped, especially trying to switch it from Celsius to Fahrenheit. The basic instructions that came in the box were minimal and didn't cover that specific setting. I found the full instruction manual online, and it turned out to be a simple combination of holding down two buttons simultaneously. The manual also clarified the wiring for my specific HVAC system, which gave me the confidence to install it myself. The complete guide for this and many other models is available at https://lux-products.manymanuals.com/thermostats lux thermostat manual, it’s well-organized and made a frustrating task simple.

Thank you, the Lux thermostat manual had the setting I was looking for!