Hoshizaki Modular Cubelet Serenity Series Service Manual page 25

7) Freeze Cycle "GM" and "COMP" LED are on: The 5-min. ice purge timer terminates
or the ice purge cycle bypass button ("SERVICE") is pressed, "COMP" LED turns on.
To bypass the 5-min. Ice Purge Cycle, press the "SERVICE" button on CB after the
"GM" LED turns on. WARNING! Risk of electric shock. Care should be taken not to
touch live terminals. 115VAC is present between CB X1 relay power supply black (BK)
and neutral (W) at all times. If not, check 115VAC power supply wire connections from
power switch. If "COMP" LED is not on after 5-min. ice purge timer terminates, replace
CB. When "COMP" LED turns on, PDS energizes. If "COMP" LED is on and PDS does
not energize, check for 115VAC between CB X1 relay dark blue (DBU) wire and a
neutral (W). If 115VAC is not present, confirm X1 relay black (BK) to a neutral (W).
If 115VAC is present on X1 relay black (BK) and not on X1 relay dark blue (DBU),
replace CB.
8) Refill "WTRIN" LED is on: See "5) Fill "WTRIN" LED is on:") above.
Legend: BC1–bin control 1 (infrared sensor); BC2–bin control 2 (mechanical backup);
CB–control board; CCR–compressor control relay; Comp–compressor;
EH–evaporator heater; FS–float switch; GM–gear motor; LFS–lower float switch;
PDS–pump-down solenoid valve; UFS–upper float switch; WV–inlet water valve
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