How do I change the temperature from Fahrenheit to Celsius on the SpaNet Controller? December 13, 2017 20:56 Updated Follow Press and Hold Air Blower & Clean Button together until C.LMT comes up - scroll until you reach UNIT press OK, press OK and change from deg F to deg C. Related articles What is the recommended temperature for my Spa Pool? How do I switch to BioGuard Armour if I have been using Lithium? What is the recommended foundation or base for the spa? SV Mini Installation & User Guide Vortex Warranty Comments 0 comments Article is closed for comments.