The other guy is right. You have a short circuit someplace. Now, I will give you a few places to start.
Unplug the blend door motor.
Unplug the A/C compressor.
Replace the fuse.
Now, if the fuse does NOT blow, start plugging things back in until it blows. When you plug in the item that blows the fuse, you have found your shorted component.
IF. The fuse still blows after unplugging the A/C and blend door motor, your problem is either in the control head or the wiring is pinched or chafed someplace in the bad circuit.
If the blend door motor is shorted, replace it.
If the A/C clutch is shorted, it also must be replaced or left unplugged until repairs can be made.
Hope this helps.
Monday, March 30th, 2009 AT 2:52 PM