You placed this question as one for an Ice-O-Matic machine. However, my search for that model comes up as a Manitowoc.
Through my brief perusal of applicable manuals easily found on-line, I found that the factory default MANAGER password for Manitowoc Blend-In-Cup (BIC) Beverage Systems is “A“.
If that is indeed a Manitowoc MB-8-1PP, it’s rated 230-240 volts (line to neutral), 50 Hertz, 1 phase. That’s a unit made for foreign markets. Your profile says you’re in Alabama. That unit shouldn’t be expected to work correctly in Alabama.
That’s a R290 unit. Special training is required for technicians before performing repairs on R290 refrigeration systems due to flammability/explosion hazards.