Geschiedenis van "Why is high fan staying on with a/c on?"

I added a little freon since the air didn't feel as cold as it was the gage on the can was in between 30-40 and then the high fan came on so I figured out it only comes on when I turn the ac on now but it didn't do this before I added the freon I'm not sure what happend it's a 5.4l fx4 2010

Toestel:

2009-2014 Ford F-150

Status:

open