Ioniq AC problem

Greetings. Thank you for the detailed information regarding your Hyundai Ioniq. The symptoms you describe, specifically the error message coupled with the non-functional air conditioning system, do indeed suggest a potential issue with the temperature sensor within the heat exchanger. Is it possible the error memory has not been cleared since the last maintenance?

Thanks for the quick reply! No, I actually cleared the error memory yesterday hoping it was just a fluke, but the error message and the A/C problem came right back. I'm wondering, could a simple sensor calibration solve this, or are we looking at something more serious like a faulty control unit frying the sensor?

Given that you have cleared the error memory and the issue persists, the probability of a simple sensor calibration resolving the problem is significantly reduced. It is quite plausible, as you suggested, that the air conditioning control unit itself is defective and causing the sensor to malfunction. Therefore, I must recommend that you bring your car into the workshop.

Appreciate the insight. Took your advice and bit the bullet, went to the local shop. Turns out it was the A/C control unit, just like you suspected! New unit plus labor set me back 980€, but at least I'm back to cool breezes. Thanks again for pointing me in the right direction!