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Reply to "Pusher Fans"

As I understand, The blades must turn in the direction of the arrow, regardless of polarity.

If you want to reverse the direction, as shown by the arrow, pull the fan blade from the motor and flip the fan blade. Now you should see the arrow in the opposite direction, Set the polarity according to the arrow. If checking air flow direction, be very careful powering the motor/fan while holding. A mismatch of of the arrow and polarity will still provide push or pull air but not optimized.
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