Astra Air Con Fault

Hi, I've got a 2008 Vauxhall Astra diesel. Getting an error stored in the memory and a warning light on the dash. The air con won't switch on either. Suspect it's the temperature sensor on the heat exchanger. Anyone seen this before?

4 comment(s)

Sounds familiar! I had a similar issue with my old Peugeot 307. Error codes popping up all over the place, and the climate control was completely dead. Was a real pain, especially in summer. Did you try checking the sensor connections? Sometimes it's just a loose wire.

Yeah, I checked the connections. Everything seems solid. The error codes specifically point to the heat exchanger temperature sensor. Could it be the AC control unit itself?

Ah, if you're getting specific codes for the heat exchanger sensor and you've checked the wiring, it's likely the AC control unit playing up. Had the same thing. Saved myself some bother and took it straight to a mechanic. They ran some diagnostics and confirmed it. Best to get it looked at properly.

Thanks for the advice! I took it to a workshop, and you were spot on. They confirmed the AC control unit was faulty and replaced it. Cost me 980€, but at least the air con is working again!

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