The heater is coming out cold. I completed the antifreeze, changed the thermostat, already changed the temperature sensor. When I unplug the air conditioning system (for testing), the heater works, but when I connect the air conditioner and turn on the heater, cold air comes. I checked the water pump, this good. What can this happening? What can I do?
Wednesday, November 21st, 2012 AT 3:21 PM