air blend door still has to work dependant on the set temperature and actual temperature
If the air con is set at 25 degrees and its 10 degrees then you dont want your air con to blow cool air do you?
The auto mode only adjusts the fan
You set the temperature on the climate control, climate control looks at inside temp, opens air blend door (hot/cold air mix) to output a temperature in relation to the inside temperature
E.g. Inside temp 10 Degrees, Set temp 25 degrees, warmer air will blow
Inside temp 30 degrees, set temp 25 degrees, cold air will blow
With the sensor disconnected the climate control assumes the minimum value for the sensor, therefore always produces hot air unless at 18 degrees celcius which is when the climate control assumes you want cold air. Just as at 32 degrees celcius it assumes you want hot air. Not sure about this for the R32's maybe they do this at FC and FH instead
Thats the end of my rant about air con, which I think is mostly right lol