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    3. My AC/Heater switch only blows on high
    My AC/Heater switch only blows on high

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    0  Views: 352 Answers: 1 Posted: 13 years ago
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      1 Answer

      Usually, if a blower only works on high, the resistor pack is burnt out.

      The power for the blower goes through resistors to lower voltage for the lower speeds. When the resistors burn out only the direct line, high speed, works.

      Get a mechanic to check it, it may be the switch, but I'd lean more toward the resistors.
      13 years ago. Rating: 3
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