valentina_hoffmann70

Arkana AC Failure

My 2021 Renault Arkana with a gasoline engine is giving me grief. Mileage is sitting at 75739 km. The AC has packed it in. The error memory's throwing codes, no cooling whatsoever, the AC system refuses to kick in, and the speedometer's lit up with a warning light. I'm suspecting a dodgy AC control unit, but I'm open to suggestions before I start tearing things apart.

A 2021 Renault Arkana with a gasoline engine is experiencing an AC failure, with error codes and a warning light on the speedometer. The initial suspicion is a faulty AC control unit. However, the sudden failure and warning light suggest a more severe issue, such as a compressor failure, which could overload the system and mimic control unit problems. The recommendation is to have the vehicle inspected by a certified workshop to accurately diagnose and resolve the issue.

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4 comment(s)

Sounds familiar. I had a similar issue with my Arkana. Have you checked for refrigerant leaks or pressure issues in the system? It might be a simpler fix than the control unit itself.

I appreciate the info. I've not checked for refrigerant leaks, but wouldn't that be a gradual decline in performance? This was an immediate failure. Also, wouldn't a simple refrigerant issue not trigger the warning light?

You're right, the warning light does suggest something more than just low refrigerant. Given the sudden failure and the error codes, it does point towards a control unit issue, or perhaps even compressor failure. A defective compressor could also trigger the warning light by overloading the system, potentially mimicking the control unit symptoms. Given it's a sealed system, you should take it to a certified workshop for further investigation, as you lack the necessary tools and equipment.

Roger that. Compressor failure sounds about right, given the symptoms and what you've said. I had it checked out; the dealership confirmed it. They reckon around 980€ to sort it all out. Thanks for sanity-checking my initial thoughts and confirming the likelihood of a visit to the mechanic. I appreciate your help.

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RENAULT

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ARKANA