Air Conditioning problem on 2001 Mercury Grand Marquis

sound like improper refrigerant flow...could be overcharges too---but have some service done...have them put in a new filter/drier and it'll come back into service~

I was told that it might be the blend door actuator.

that'd be convenient~ check your fuses...

here's YOUR buggy~

the fuses...perhaps this time we can see which fuse is blown...and why it is blown~

I'm going to say look at fuse 2-23 because this one is environmental~