Used the Defroster for the 1st time the other day. So the AC has to be on for this to work? It was like 65 degrees but raining, so my windows were down and the inside got fogged up. Tried to use defroster with no AC and it didn't work to well and the fog stayed the same. Then with the AC on the deforster worked perfect. I try not to use the AC that much and my other cars could use the defroster perfectly with out the AC. Am I doing something wrong? Maybe the temperature knob should be at a certain level?

 

can't help you but in general defrost works better with the dry ac air.

 

Yeh I know but it seems liek the deforster is way weak(not clearing up the fogginess fast) in the s2000 without the AC.

 

Air con in general removes humidity from the air. I always use cold air on the windscreen to defrost it in cars.

 

FYI: AC = Air-Conditioner. Not Air-Cooler.

The AC is primarily a dehumidifier. The cooling process was only a bonus by-product of the invention. Your defroster settings will work best with the dehumidifier turned on.

 

Yes, turn the heat up. It's not that complicated.