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janeis9

Peugeot Expert AC Failure

My 2019 Peugeot Expert (electric) AC isn't working. It has about 75,000 kilometers. No cooling, system won't switch on, warning light is on, and an error code is stored. Any ideas?

Summary of the thread

The 2019 Peugeot Expert's air conditioning system failed, with symptoms including no cooling, a warning light, and an error code. The issue was traced to a faulty AC control unit, which was not communicating correctly with the compressor. The solution involved replacing the control unit, which resolved the problem.

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4 comment(s)

hermannflamme5

Sounds familiar. My old Volvo V70 (petrol) had the same problem: AC quit, error code. Have you checked the refrigerant level? My control unit was sending bad signals, freaking out the compressor. Worth a look.

janeis9 (community.author)

When you mention the control unit sending faulty signals, how was that diagnosed? Easy, or did it need special tools? Any other symptoms besides no cooling?

hermannflamme5

Diagnosis was a pain. The mechanic used a tool to watch the AC control unit's signals while it was running – or trying to. It threw errors and didn't talk to the compressor right. Fuel use went up a bit as the car tried to make up for it. Best to take it to a shop; they'll have the right stuff to find the problem.

janeis9 (community.author)

Just an FYI: took the Peugeot Expert to a shop. It was a bad AC control unit, like you thought. Cost 980€ for the part and labor. Thanks for the help!

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PEUGEOT

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EXPERT