Hi -
Just acquired a free, working (but older) In-sink-erator Classic Supreme dishwasher.

Problem is, when the owner un-installed it, a few lead wires became unattached from their posts, and I'm not sure which goes where. These are not the main power .

Basically, on the rear of the supply intake housing , there are 3 posts. One has a lead attached already. So, I've got a short black lead that comes from above, from just below a small plastic
Lever/switch. And, I've got a longer white lead that comes from the rear of the machine, where it pigtails with other wires that lead to the blower.

Need to figure out which lead goes to which post. Is trial and error an acceptable option here, or do I risk damage if I
Connect wrong? Thank you!