connie wrote:

I received a Nesco American Harvest dehydrator for Christmas, and have
been using it for the first time. Has anyone else been disappointed in
the amount of time foods take to dry? For example, parsley and basil:
book says 1-3 hours; experience is 24+ hours. Onions: more like 36
hours. It has been extremely humid here, but still!

Do I have a dud?

The fan should be running vigorously.
Is it? Mine whooshes & one can smell whatever
I am drying all over the house.

It sounds like you have a dud from your description.

Minteeleaf