My fan unit has broken in this venting hood. Is it possible to replace it with a 1200cfm motor rather than the stock 600cfm?
If not, is it possible to use the existing hood and install a KitchenAid - 1200 CFM Exterior Blower Motor on the outside of the house?
You would not want to double the CFM recommended for the unit with a higher blower fan. As for installing a 1200 cfm exterior blower motor outside of the home, we would not have information on that and with this being a over the range vent hood it would not be likely that it would be able to be adapted. The fan assembly for your unit is part number W10291602.