Engine cooling fan and generally the A/C compressor comes on when the climate control is set to any position other than vent or off.

The result is VERY POOR MPG.

I read elsewhere that this problem can be addressed by cutting a purple wire from the climate control switch and spicing in a toggle switch. Of course you have to mutilate your control center to install the switch and can negatively affect resale of the vehicle. Pulling the 10 amp A/C compressor fuse under the hood does not remedy the problem.

While visually unappealing, it can defeat poor programming and bad design.

I have not done this yet and prefer to have the problem fixed for free by Ford.

A/C should never run in any position other than A/C, Max A/C, and straight defrost (3 positions only). All other positions, the A/C should be OFF.

The correct way would be to redesign the switch so that the above statement would fix the problem (AC vs switch position)

Note: A/C only needs to be run for 15 consecutive minutes per month, year round, to keep the seals lubricated.