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antonneumann2

Grandeur AC Not Cooling

I'm experiencing trouble with my 2006 Hyundai Grandeur diesel (108647 km). Recently, the air conditioning stopped working. The error memory has a fault stored, the air conditioning doesn't cool at all, and it doesn't even switch on. Plus, a warning light is now showing in the speedometer. Could this be a refrigerant leak or some other auto refrigerant issue?

Summary of the thread

The 2006 Hyundai Grandeur's air conditioning system stopped working, with the AC not cooling and a warning light appearing on the speedometer. Initially suspected to be a refrigerant leak, further investigation revealed a defective air conditioning control unit as the root cause. The solution involved replacing the control unit, which resolved the issue.

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4 comment(s)

timhofmann3

I had a similar issue with my Grandeur. The symptoms you describe – air conditioning not cooling, error codes, and warning lights – point to a problem within the air conditioning system itself. Has the system been checked for refrigerant leaks?

antonneumann2 (community.author)

Thanks for the quick response. No, I haven't checked for refrigerant leaks yet. I was hoping it was something simple. But could it really be just a leak causing all those issues, or is it more likely something like a defective auto AC repair?

timhofmann3

In my case, the issue wasn't a simple refrigerant leak. After a thorough diagnostic, it turned out that my air conditioning control unit was defective. I strongly suggest having a qualified mechanic check the system. I'm afraid this could be automotive cooling issues, leading to AC unit issues and potentially a costly auto AC repair.

antonneumann2 (community.author)

Okay, I understand. I appreciate the advice. I took it to the workshop, and they confirmed that the air conditioning control unit was indeed defective. The repair cost me about 980€.

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HYUNDAI

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GRANDEUR