The front A/C on my '05 Sedona stopped cooling the other day. Great. The rear is ice cold. I got to looking around a bit and bumped the temperature control...icy air starts! It seems that over the years of previous owners cranking the control to the stop at it's coldest setting let the switch run past the contacts in the switch. Rolling the control back just a bit solved the problem. Worth a try if yours quits too.
Terry
Terry