Lexus NX AC failure

Hi, I have a 2017 Lexus NX hybrid. Recently the air conditioning stopped working. I get an error in the system memory, a warning light on the dash, and the AC doesn't switch on or cool. The car has 86080 km on it. Any ideas?

4 comment(s)

That sounds like a real pain, especially with summer coming up! Is it making any weird noises when you turn the AC on, like a struggling motor or anything? Sort of like when your fridge is on the blink? Or maybe check if the AC compressor clutch is engaging - you can usually see it spinning when the AC is on. If it's not, that's a clue!

Thanks for your reply! No strange noises, and I'm not sure how to check the clutch, to be honest. I'm thinking it could be electrical, maybe a fuse or relay? Could you say if that's plausible?

Right, so it's silent, huh? Fuses and relays are like the circuit breakers in your house – definitely worth a look, but usually that's not the culprit for something as complex as AC. Based on those AC system symptoms , it does sound like the AC control unit might be toast though which is annoying because it is like the brain of the whole system. Definitely time to visit a workshop!

Thanks for your help! Turns out the AC control unit was indeed defective; had to replace it. Cost me 980€, but at least I have AC again.

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