[:@]Looking for some advice regarding my heat selector.....I can control the fan speed, but the temperature stays on max heat all the time....with air only going to the front windshield defroster - regardless of the mode. Even on low fan setting...I hear a constant clicking coming from under the dash as though it is trying to switch over. Does anybody have any ideas / experience with this and can you please point me in the right direction. Any help would be appreciated.