If your car's air conditioning control unit or internal AC control panel has a problem, where it starts working during the day in the sun, but at night the power cuts out, and sometimes it works intermittently and the power cuts out randomly. Kia Cerato Optima Rio . I have the solution. Instead of buying a new part, I can repair your existing part and give you a two-month warranty on it. ( Phone number appears when clicking the contact button ) I repaired it in my car 6 months ago and have repaired it for many others, and it has been working without problems, praise be to God.