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Can only get air through the defrost! Help!

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Hi there,
I can only get heat/air through my defrost setting... Any other setting will not work except for the off setting... The connections on the back of the module are all there... Anyone have any ideas if i need a new climate module ???

Tks..
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Yeah, check for the vacuum line. If that line breaks, the vent system is designed to default to the defrost setting for safety reasons on most cars.
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