No Heat

Hi all!! I have a 99 Sportage and the heat does not work. The blower works fine (cold air is blown out of it). I have already replaced the thermostat. Please does any one have any ideal what is wrong with my heat??

Hi all!! I have a 99 Sportage and the heat does not work. The blower works fine (cold air is blown out of it). I have already replaced the thermostat. Please does any one have any ideal what is wrong with my heat??

Maybe... Is the heater hose to and from the heater core hot? If so, then it's the temp door which may be vacuum operated for that model year.

JP