Re: Definitive Kitchen circuit count; NEC vs local code vs "best practice"
I concur with your electrician. Dishwasher, microwave/hood (installed, not countertop), and disposer should each have dedicated circuits, even if cord-and-plug connected.
Reason being is load: each of these appliances can represent a significant load on the circuit, and if shared will be a major inconvenience.
My wife has tripped the breaker I-don't-know-how-many-times because she wanted to use another appliance when the countertop microwave was running.
Remember that the dishwasher has a heating element. Running it on the same 15A circuit as the disposer could trip the breaker.
The disposer doesn't seem like it takes much electricity, until it gets jammed. Motors exhibit the highest power requirements when they are unable to spin.
Absolutely don't put the refrigerator on a GFI. If its outlet is on the same circuit as the countertop outlets, make sure it's "upstream" of the GFI. Best if the outlet is behind the fridge.
The "Senior Member" designation under my name doesn't mean I know a lot, it just means I talk a lot.I've been a DIYer since I was 12 (thanks, Dad!). I have read several books on various home improvement topics. I do not have any current code books I can refer to. I was an apprentice plumber for two years.