Yes, it is recommended to install a new thermostat when getting a new air conditioner. While it is possible to use the existing thermostat with a new AC unit, it may not be compatible or optimized for the new system, leading to inefficiencies in temperature control and potential damage to the equipment. A new thermostat ensures proper compatibility, functionality, and energy efficiency by integrating seamlessly with the new air conditioner. Our HVAC Alliance Expert specialists are well-equipped to assist you with any HVAC and AC services, including thermostat installation and repair. •Learn more about our thermostat installation services here.