volvo 2007 s 60 has no heat or defrost a/c is fine
OK, noted . So do you want help , are you going to take it to a shop or did you just want someone to know ?
So I take it when you turn the heat on it only blows cold air? If this assumption is correct, then the first thing I would check (when the engine is cold) is the coolant level in your radiator
Here is a quick overview on how the heat and defrost work in a car. May be helpful to you before you bring your vehicle in for service.