Hoshizaki is the other giant of commercial ice, famous for crescent-cube KM-series machines that run for a decade with basic care — and infamous for confusing new owners, because most KM-series cubers have no error code display. The machine communicates by beeping: the control board sounds a repeating alarm, and the number of beeps between pauses is the diagnosis. One beep is a high evaporator temperature, three beeps a long freeze cycle (the classic hard-water alarm), six and seven beeps are building voltage problems rather than machine problems.
Hoshizaki's dispensers and square-cube machines do show real codes: DCM-series cubelet dispensers use E-codes and lowercase c-caution codes, and IM-series square cubers show E1 and E2 directly while logging everything else behind a generic EE display. Count the beeps or read the code, then find it below — each page explains the fault, what an operator can safely try (cleaning the float switch fixes more Hoshizaki alarms than any part replacement), and when to stop resetting and call for service.