I have a 2001 Sebring convertible and she suddenly stopped putting out warm air. I don't think it is a thermostat or heater core problem, because the temperature guage still goes to the same reading it always has, and takes the same time to get there. I had more heat than I could use one one day, and the next there was no heat at all, so I don't think its the heater core, either. she will switch from floor to vent to defrost ok, and the blower motor works. Any suggestions on where to start checking?