What you need
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Unscrew the 16mm screws located on the plastic bottom from the blender base using a Phillips #2 screwdriver.
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Holding the center of the fan, grip the knob in the center of the top of the blender with a wrench and twist the wrench counterclockwise.
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Now de-solder the yellow wire from circuit board. De-solder the wire following these instructions.
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