Our warranty on new units is 2 years, for upgrades, we cover up them for 2 years or until the original Nissan warranty expires. (Whichever is longest) Note that (obviously) we do not cover damage due to abuse, such as damage to the handle, as we have nothing to do with that part.
We have never denied coverage to anyone, and have even assisted customers with unusual circumstances, such as dogs chewing up cables. =)
These units are made by Panasonic's Kitchen Appliance division, and are so tough trouble is extremely rare.
-Phil