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SportTrac Discussion
General Sport Trac Discussion
07 AC Problem
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<blockquote data-quote="scott degroot" data-source="post: 782642" data-attributes="member: 66039"><p>The part that is most likely at fault is the blower motor resistor(not thermistor). This supplies a variable ground to the blower motor to make it run at different speeds. When it goes bad the only circuit that is usually left is the one for high blower because it typically bypasses the whole resistor. On something this new though I wouldn't expect it to go bad so quickly, they may need to look for an underlying problem such as a blower motor that may be drawing excessive current and causing the resistor to prematurely burn out.</p></blockquote><p></p>
[QUOTE="scott degroot, post: 782642, member: 66039"] The part that is most likely at fault is the blower motor resistor(not thermistor). This supplies a variable ground to the blower motor to make it run at different speeds. When it goes bad the only circuit that is usually left is the one for high blower because it typically bypasses the whole resistor. On something this new though I wouldn't expect it to go bad so quickly, they may need to look for an underlying problem such as a blower motor that may be drawing excessive current and causing the resistor to prematurely burn out. [/QUOTE]
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SportTrac Discussion
General Sport Trac Discussion
07 AC Problem
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