Product review (1 stars): Large, but not in charge...
We previously had a Dacor smooth cooktop and downdraft.  These were great products but wore out after 13 years.
Decided to replace all our appliances with KitchenAid brand.  Not until the installer raised the vent and it hit a decorative plate on the wall and blew a fuse, did he realize it was much taller than the old Dacor. A repair person was dispatched and tried to say there was no fuse in this unit.  Finally, he called the manufacturer who stated there was.  However, the fuse then had to be ordered and took another week to arrive.  I understand repair people cannot stock every single part on their trucks but the repair company was advised by the installer it was a blown fuse.

(Not to digress, but I find this happens all the time now.  Something is broken.  Repair person is dispatched.  A part is ordered and a second trip is necessary. Has anyone else noticed this is S.O.P. these days? So much time and gasoline are wasted as a result.)

When the fuse arrived and was installed the downdraft was discovered to be too deep and now rubs on the back of the granite backsplash as it is raised and lowered.  To be fair, I must admit it has powerful suction.  However, the S/S looks streaked all the time and already has numerous scratches.  We are hoping to exchange this for the KitchenAid cooktop with center downdraft.

"ANOTHER OPINION" commented:
These seem like installation issues, not manufacturer defects.

"R. PAGE" replied to "ANOTHER OPINION":
You make a valid point. However, the Dacor unit we previously had would on occasion bump into an object and not blow a fuse. From the other review and comments I notice that problems with motor, switch or fuse seem to be a recurrent theme with this product.