Last night I had turned down the degrees on my thermostat and by this morning it was a lot colder than it should've been. I noticed that the display was reading lower that the kick on temp for the heat was set for. After playing around with it the A/C portions seems to be working fine and blowing cold air but as far as the heating portion I get a click on the thermostat and it sounds like my furnace is kicking on but the blower never turns on to start blowing warm air. Any ideas?