Peugeot 206 AC undervoltage

My 2012 Peugeot 206 with a gasoline engine has developed an A/C issue. The air conditioning system doesn't switch on, so it no longer cools. Error memory shows an undervoltage error, but the battery seems fine. Belt tensioner looks ok. Anyone experienced similar issues?

4 comment(s)

Hmm, A/C problems on a 206. Sounds familiar. Did you check the AC relay and pressure switch? Could be a refrigerant leak triggering a shutdown. Any recent work on the car?

Relay and pressure switch appear functional, but I haven't ruled out a minor refrigerant leak. Is the AC relay prone to failure on these, or am I chasing shadows?

On mine, it turned out to be a flaky relay that wasn't throwing any obvious codes until it completely died. Though given the undervoltage code, that's worth investigating further. Honestly, might be worth having a workshop take a look. I spent too long chasing ghosts before biting the bullet.

Thanks. Workshop confirmed the undervoltage issue. It seems a faulty sensor was causing excessive drain, leading to the compressor shutting down as a safety measure. Repair came to 240€, including sensor replacement and refrigerant top-up.

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