Peaches if you read this ' maybe I can help you with your heater. What make of car , what the heater is doing, is the fan working but only blowing cold air ? First check the fuse for the heater on your fuse panel, if you don't know where it is, look in the owner's manual, or call a dealership and ask the service manager. Did anything unusual happen when/before it quit working? Like a funny smell, or a leak in the interior or from under the hood? Is the temperature control hard to operate? Anyway there are some places to start.