Hi, I have a 2002 Corolla T-Spirit, a few weeks ago, I noticed when setting the heater temp to "HOT" - the temp of the air seems to be more "warm" rather than what it used to be. This model has the digital climate control. I've checked the coolant (previous topics seem to check this first here) - this was not low, but have topped up never the less. I would really appreciate any suggestions on what I can do / look for next. Thanks,