I have a question: I switched on the automatic A/C system this morning by pressing the "Auto" button and set the temperature at 21°C (outside was 5°C this morning). It appeared that the system engaged the A/C since the led on the button with the snow-flake went on, but the same sign didn't appear on the display. Later on the same day when ever I was testing it (either by setting it on "Auto" or simply pressing the A/C button) the sign was appearing on the display. This morning absence of the sign is it a fault or has to do with the outside temperature? Since the led on the button went on shouldn't it appear on the display as well?