Check Engine light comes on and shows code PO480. Cooling Fan control Module has been replaced 3 times and I am still having same problem. Why?

What is your question?

This happened in Sept 2017 and module was replaced. Lasted til April 2018 and again it was replaced and was replaced again in May claiming the May switch must have been bad. Had it back in the shop the last of May claiming the cooling fans have internal short and replaced the motors on both fans. That lasted until June 13th when I noticed one of the fans was loose and wobbling. Got it back to shop and they replaced clip and washer on fan saying it was loose and causing light to come on. Picked it up on June 20th and this past Thurs. July 19th, the check engine light was back on reading the same code PO480. Apparently Hart Motors in Salem, VA does not have the expertise to fix this problem. The van has only 155,00 miles on it and has been well taken care of by an older lady.

What makes this problem better or worse?

Nothing

How long has your 2008 Kia Sedona had this problem?

Started in 9/17, reoccurred 4/18-now. See information above