Kia Troubleshooting Questions? Ask a Mechanic
Hello I will help you with your question,
The blower motor resistor mounted in the bottom of the blower case next to the motor is the usual problem. If you have a 12 volt testlight I will help you test to be sure.
Let me know how I can help you with this
NO the resistor is next to the motor, just follow the wiring from the motor to the resistor and remove the screws that hold it in the case but if you want to be sure it is the resistor I can help you test. I am guessing you put power directly to the motor and it ran?
yeah i put power directly to it and it ran. ok i'll see if i can get the resistor out.
Ok, let me know how I can help you
You can use a heavy jumper from the red/black wire to the black wire at the resistor(really a transistor) and see if your blower runs on high speed. Careful the jumper carries the full blower current so it will get hot.
Let me know if that works
i ran a jumper and it sparked and the jumper got real hot but the motor didn't turn on
It may be a stuck blower or the jumper is too small. This has to carry 30 amps at startup so is there anything stuck in the blower like the cabin air filter?
If the blower is not free to turn then it will draw maximum current burning the transistor and then nothing runs.
Pull the filter out from behind the glove box and turn the blower fan. Let me know if it is free but I am sure you need to replace the transistor.
i'm assuming my jumper was too small. it was a 16 gauge audio wire. the motor is free to turn. i do need a new in cabin filter i noticed. it is dirty and changing shape like someone punched it. so u think i would be smart to buy a new resistor?
Yes 16 gauge will do 10 amps max
I do think you need to replace the filter and the resistor/transistor. Be sure the fan turns freely
Let me know how I can help