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it depends what car u have but on most fords there is a button tht says

A/C When tht button is on ...the A/C Will Work With The Fan ...When the fan is on the A/C is Also On So Make Sure The Switch Is Off When You Turn Ure Fan On .....Good Luck Tha ac turns on when in defrost because the ac dries the air out, and drier air cleans the windows faster.

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16y ago

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