Hoshizaki

1 field manuals · 9 error codes · 3 guides

Hoshizaki ice makers

Undercounter clear-ice machine: field service manual

15-in residential undercounter clear-cube machines (gravity-drain and pump models); notes on Hoshizaki KM-style cubers. Generic platform; confirm with model data.

7 components4 common failuresGE, Whirlpool / KitchenAid, Scotsman, Hoshizaki, U-Line, Manitowoc

Error codes

1 beep (every 3 s) High-temperature safety lockout 2 beeps Long harvest 3 beeps Two long freeze cycles (max free…4 beeps Bin control short (K4)5 beeps Bin control open (K4)6 beeps Low voltage 7 beeps High voltage 8 beeps Gear motor / compressor relay de…9 beeps Bin control check (bin full)

Guide · Ice Maker

Undercounter ice maker not making ice

Check power, water supply and pressure, drain (pump models stop when they cannot drain), bin sensor, cleaning status, condenser and room temperature. Scale is the most common cause on older machines.

7 steps ~60 minmoderate

Guide · Ice Maker

Commercial cuber long freeze or long harvest alarm

Long freeze usually means poor heat rejection or water problems; long harvest usually means scale or harvest components. Do the safe checks; refrigeration work goes to an EPA 608-certified tech.

6 steps ~60 minmoderate

Guide · Ice Maker

Nugget/flake machine auger overload or no ice sensed

Scale on the evaporator and auger is the most common cause of auger overload. Low water starves the freezing cylinder. Descale and check water before replacing gear motors.

5 steps ~90 minmoderate

Official Hoshizaki manuals & support

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