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It is the blower resistor, which is under the passenger side of the dash, remove the cover and look for a card with two bolts and a wire up to it, the part cost about 20 at the dealer, if it blows again, you need to replace the blower motor most likely.

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Q: How do you remove the heating and air on off knob to check the switch The blower fuse is fine but no air or heat on numbers 1 2 or 3 only on 4?
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