Look under the dash on the passenger side
It could be the blower fan resistor or the relay
Check the fuse and relay first. Then check the blower resister, then the blower motor itself. One of these is probably the cause of the failure.
Blower motor resistor...around $25 on eBay
First check the fuses. If the fuses are okay I would suspect the switch and plug had a meltdown or the blower motor itself is shot. If it was the blower speed resistor that was shot you would still have high speed.
resistor for fan blower is in back of glove box, beside the blower itself.
Have your blower motor resistor or blower motor checked out
Check for a bad blower resistor at blower motor
just take out 3 screws from the fan and unplug it. take blower out of housing and replace, should only take about 20 minutes.
The Condenser Fan Relay and the A/C Cut Relay on a Kia Sportage are located together under the dashboard on the passenger side of the vehicle. They are just aft of the heater blower motor. The Comndenser Fan Relay is the 20amp relay and the A/C Cut (compressor) relay is the 52amp relay.
under right side dash, near blower fan. has two screws & connector.
Its located on the passengers side under the dash in the blower housing............
the electric fan is not coming on, either sensor or fan unit,suspect fan unit. Rock auto has them for about $59.00