Kia Troubleshooting Questions? Ask a Mechanic
Hi my name is ***** ***** I will be happy to assist with this here.
From what you have described here this sounds like an electrical fault with the blower motor itself needing replaced or an issue with the blower resistor.I have seen both act up/fail in the past before needing replaced.
The blower motor and resistor need tested further to see which is the cause here.Then from there the component at fault can be replaced.
Let me know if you need anything else and feel free to rate my help as this is how I receive credit for my time.