I started hearing some sort of fan vibrate on and off, intermittenly, about two months ago, took it in for an evaluation and the mechanic and electrical could not determine what it was. It finally went away but one morning I realized I now have no heater. The A/C works fine. If some sort of fan or belt needs replacement, will the entire A/C system have to be replaced?
If you don't have any heat chekc to see ifyour hoses to heater are both hot, check coolan t level as you may have a leak. It may be your blower isn't operating. Check fuses underhood and blower relay which is normally by the blower. You can then check to see if the blower and/or resistor is getting power if it is then the blower may beyour problem an dneed replacing.