https://www.googlenestcommunity.com/t5/Nest-Thermostats/Thermostat-adjustments/m-p/84773#M18900 <P>Is it harmful to the thermostat to switch daily from Heat to Cool? Texas weather changes from hot to cold almost every day or overnight!</P> Sun, 16 Jan 2022 12:17:22 GMT Cjohnson 2022-01-16T12:17:22Z https://www.googlenestcommunity.com/t5/Nest-Thermostats/Thermostat-adjustments/m-p/84773#M18900 <P>Is it harmful to the thermostat to switch daily from Heat to Cool? Texas weather changes from hot to cold almost every day or overnight!</P> Sun, 16 Jan 2022 12:17:22 GMT https://www.googlenestcommunity.com/t5/Nest-Thermostats/Thermostat-adjustments/m-p/84773#M18900 Cjohnson 2022-01-16T12:17:22Z https://www.googlenestcommunity.com/t5/Nest-Thermostats/Thermostat-adjustments/m-p/85160#M19001 <P>No harm in that whatsoever!&nbsp; The Nest actually has a 'Heat+Cool' setting for those times of the year and it will switch back and forth automatically as required.&nbsp; You set the point where you want heat to come on, and the point where you want A/C to come on.&nbsp; Here in Chicagoland, I run it in this mode in early Spring and late Fall for a few weeks at a time.</P> Sun, 16 Jan 2022 22:29:05 GMT https://www.googlenestcommunity.com/t5/Nest-Thermostats/Thermostat-adjustments/m-p/85160#M19001 johnCNA 2022-01-16T22:29:05Z