Have problem with Thermo King!

[Thanh Tu]

Hi, I'm new here so I want to know how can I convert from Fahrenheit to Celsius in Thermo King SB-III SR+ 2000?

[IRMechanik]

can only be changed through super guarded access.
press and hold the TK and clear buttons till you see H4TY, scroll through till you see DDUR then press and hold tk and clear again. scroll through until you see DEG and change from F to C and press = to load it in.
Try and avoid changing any other settings.