Heater a/c

I have a 2008 cu2 and i went to put the heating on today as the temps starting to get cold here in the morning...problem... it was blowing cold air, after further investigation i now know that it is only the drivers side blowing cold air the passengers blows warm air i have checked near the windscreen panel to see if anything is blocked and all is cllear....anyone have any ideas?

Thanks in advance

anyone with suggestion dont really want to take it to the stealers if something simple

double check if its on the heat mode & run it when the car on the normal temperature.

R u sure you have same temperature set for both the vents. If its in dual mode then you might be increasing/decreasing just one side's temp.