a/c blowing fuses

when i turn on my a/c, it blows the fuse. turn signal doens't work as well, it seems to be the a/c that is causing these problems. if i turn on the heater fan, and put the control on vent, it works ok. any help would be appreciated.
thank you in advance

Look at the clutch for the compressor check for any wiring touching the pulley causing a short. Unplug the clutch and check if the fuse blows when turning it on. You have to check an item at a time on the fuse until you find it. Check for high head pressure on the compressor or signs of a slipping hot clutch.