My car is a 2006 KIA Sportage, Fan motor was making noise then stopped working, removed the fan and found acorns inside. Also, found that the two wires to the motor had melted together, the 40amp fuse blown, resistor/MOSFET was destroyed also. Checked resistance in both the red and yellow wires to the fan and the reading seems fine(.002 ohms). There are no lights on at the control now with of course no operation of the fan. Besides replacement of the resistor/MOSFET with replacement of the two fan wires and 40amp fuse is there anything else I should be concerned about replacement?

SOURCE: 2001 kia sportage blower motor resister

Rule of thumb...unless you get a better answer:  look for a couple of wires on a small plate that is in the airflow of the fan on the heater/ac unit.  The resistor pack is always air cooled by the fan.

SOURCE: 1999 KIA Sportage, 2WD. No heat, fan, A/C

did you check the switch to the control cluster ? incase you dont know what im talkin about the switch that turns it on and off and adjusts speed? if its not that then do you have a blown fuse becouse the blower moter has an independant fuse some times in the fuse box there may be 2 1 in the car and the other under the hood try that let me know if its fixed

SOURCE: 199 kia sportage heater blower motor stops then

a bad earth or chaffed wire

SOURCE: 2001 Kia Sportage fuse 4 radiator fan?

Radiator fan fuse is fuse # 5 (40 amp/Green) located behind the interior fuse access panel on the left side of the instrument panel next to the steering column. Also, in the underhood Power distribution center, next to the air cleaner filter are two black fan relays: high speed (F) at the far left, second row down and a low speed, 1st one to the right on the bottom row.

SOURCE: Replaced blower motor in my 2001 kia sportage ex,

It could be the blower motor resistor, the high position feeds full 12 volt power directly to the blower motor. All lower settings route through the blower motor resistor. It is usually located under the passenger side dash, not far from the blower motor. Two screws secure it to the heater box.