2000 Mercury Mystique AC and Heat only work on high

2000 MERCURY MYSTIQUE
118,621 MILES • 6 CYL • FWD • AUTOMATIC
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LUCINDAE
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  • 1 POST
Why do the AC and heat only work on high?
Jun 4, 2010 at 6:13 AM
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RASMATAZ
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  • 75,992 POSTS
Replace the blower motor resistor
Jun 4, 2010 at 6:36 AM