Seat Formentor AC Problem

I'm stumped. My 2021 Seat Formentor hybrid has an air conditioning problem. The AC just stopped cooling, and the system refuses to switch on. I've checked fuses, but no luck. A friend suggested it might be individual valves in the AC system. Any ideas before I take it to a workshop?

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I had a similar issue with my Volvo V60 hybrid. The AC stopped cooling and wouldn't engage. Have you checked the AC relay? Also, make sure the blower motor is working. A faulty pressure switch can also prevent the compressor from activating. Inspect these components.

Thanks for the advice! Where would I find the AC relay, and how do I check if it's working? Is there a way to test the pressure switch?

The AC relay is typically in the engine compartment's fuse box or a separate relay box, often labeled. It supplies power to the AC compressor. Use a multimeter to check for continuity when the AC is activated. The pressure switch prevents the compressor from running when the refrigerant level is too low or too high. Without tools, it's challenging to test accurately. Consult a technician for diagnosis. In my case, it was a faulty valve, requiring a system flush and component replacement.

I got it fixed. The workshop confirmed a valve defect and replaced them. It cost me 1000€. Thanks for the help!

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