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Some air blows downwards from rangehood

My rangehood has 2 centrifugal fans with 700 cfm. It blows some air downward. When connected to the duck work, it blows more downward. What's wrong with the vent?

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Clog? or the shutter on the end wont open.

Posted on Dec 07, 2008

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This installation guide on the Jenn-Air web site does not provide electrical details, but there are two possible problems here.

1. - The fan could be installed backwards...or upside-down...so it moves air the wrong way

2. - The power wires might be connected incorrectly.

My best guess is that the fan uses a standard ac-powered motor, so the polarity of the wiring would not affect the direction it turns. If that is true, then the most likely problem is that the fan is installed incorrectly.

Good luck...and I hope this is helpful!!

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