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Damp air from AC


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When i've had the aircon on for a while, then park up, and then drive away a few hours later without AC i get very damp/humid air coming out of the vents, and it stinks - similar to when you leave your washing in the machine for a few days. Is this normal?

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  • 2 weeks later...

The smell is caused by bacteria building up on the condensor i think.

One fairly good way off cleaning the system is too run the heater on full blast (a/c off) for 20 minutes then run the a/c on full for 20 minutes then full heat with a/c off for another 20 minutes.

Should kill most of the bacteria but you need to be running for an hour and it's not the most comfortable thing to do in summer!!

After that use full blast a/c on a longish run every month at the very least.

The quickest and most effective way is to seek advice from an a/c service company, this is also the pricey way.

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