tmx2112

Ok here's a good one. A friend of mine as a 2000 E320. She drove the car to work, turned it off, and the AC blower motor kept running, to the point of draining the battery. I connected cables to jump her off, and even before she started the car the AC blower came back on. Ok, now it get's even stranger, pulled fuses 4 & 7 AC blower controls, blower keeps running ... and to ice the cake, it blows cold air! My thoughts are it's a relay somewhere, but I can't find it. Called the local dealer, they've never heard of anything like it, especially since the AC keeps running after the fuses are pulled. Anybody? Anybody?