2008 Ford Edge Cooling Fans won't shut off.

The cooling fans on my Edge stopped working. A friend of a friend looked at it and after testing found that the module was working right on the fan assembly. It was cheaper just to buy a new fan assembly with the module on it. It is TYC brand assembly which I was told was a good brand. After installing it I plugged it in and the driver side fan is going full speed and won't shut off unless unplugged or fuses taken out. Funny thing is that I have the tow package, so theres 2 fuses, either one of them in will turn the fan on. The other fan never comes on. Did I get a bad fan or could it be something else?