2003 Kia Optima "fan works high" Questions

heater fan motor works on high only your fan speed resistor has failed......it is located in the heater box behind the glovebox and is sually easy to replace

...fan will probably turn on if you turn on your Air Conditioner. ur temp gauge seems to be working normal when the stat opens to the operating temp than the coolant cools a little gauge goes down a ...

...fan still blows -the low side pressure was like 10 on the gauge -while injecting the freon we could hear it blowing out the front of the car somewhere -so we stopped seemed a waste of product my ...

...fan on heater only works on high.the other low,medium fan control doesn't work. Can you tell that the fan is getting higher or lower? Or is there no response from the fan control until you get to the ...

...switch, all the low speed work through a resistance, the full speed does not, there is only one fuse for the fan so if it works on high its ok and you say the fan works on high so the fan itself is ...

...fan works (Fan speed 4). It needs to have the blower motor resistor card replaced. It still works on high speed because on the high setting the voltage does not go through the resistor. The resistor ...

...works on high speed Year/make/model??? Are you referring to the AC fan speed only working on high inside the vehicle? If the fan is only operating on the high speed, suspect a fan motor resistor ...

...fan only works on high.Power locks don't work. there is a resistor for the heating and cooling fan speed. this controls the amount of voltage to your fan, which controls the speed. usually when the ...

...fan works with normal engine running but does not work when ac is turned on If refrigerant is low , high side pressure may not be high enough to engage the pressure switch to kick on the fans. Have ...

...works again. What's up? It sounds like your cooling fans are not working.Need to check the cooling fan fuses,and the cooling fan relays.There is also a high side switch mounted somewhere on the high ...