Article reference KA-02016
To change the temperature units on screen from Celsius / Centigrade to Fahrenheit, or back again, follow this video guide:
Applicable to models: TRM21W4, TRM14W5, TRM21W5, TRM28W5, TRM21C4, TRM14C5, TRM21C5, TRM28C5, CTR7W, CTR7C, CTR10W, CTR10C, CTR12W, CTR12C