Volvo Repair: Volvo AC and Heater problems, volvo 850 wagon, heater control valve

Question
i recently purchased a volvo 850 wagon.  the ac is air temperature and the heater is cool.  Wbat might be possible problems.  Also, the thermostat was changed in the last two weeks.

Answer
With the 850 you never know.  The a/c may have a leak, and the heater control valve may not be opening all the way.  either way, this car needs needs to be checked out by a Volvo shop.  I would have to look at this car to determine what the problem is.  Roger