Product review (1 stars): Defective Broan
I am remodeling a kitchen so I purchased everything prior to commencement of demolition.  The shaft is bent on the fan internally, the packaging was fine; you would not know it until installation.  Purchase date of Dec 10th today is Feb 11th. They say, I am passed the return date.  I suppose this is one of the reasons why you should buy from brick and mortar stores.

I called Broan; they asked me to disassemble and adjust the height of the fan to no avail.  It seems like the shaft is bent but it is encased so it is hard to tell.  They, apparently, have to make a new assymbly part before they can send a replacement motor.  Then I will have to perform the repair.  Minimum 10 days.