Assuming Tair = 32d;

Which version prints 32°C on your LCD?

LCDOUT $FE,$C0," ", SDEC2 Tair, $B0, "C "

or;

LCDOUT $FE,$C0," ", SDEC2 Tair, $DF, "C "

or;

LCDOUT $FE,$C0," ", SDEC2 Tair, 223, "C "