How do I get my SmartMaxx DHWPlus controller from Celcius to Farenheit?
How do I get my SmartMaxx DHWPlus controller from Celcius to Farenheit? Push the "+" button until you move to end of the main menu (time). Press the "+" button continuously for about 3 seconds to get into the adjustment submenu. You should see "Arr." Temperature scale choice is near the end of the submenu, so keep pushing the "+" button...