Water bypasses into the drain during a freeze when the Hoshizaki dump valve or drain flush fails to seat properly. The tank empties early, and the evaporator turns out thin, hollow, undersized cubes that never release cleanly.<\/p>\n\n\n\n
You will not experience a full stop or an error code that would notify you about the failure in the first days. Meanwhile, ice stacks up in the chutes until the unit jams and freezes solid, causing thinner, hollow, or misshapen ice.<\/p>\n\n\n\n
This problem differs from the classic “water never stops filling” error, which is more common among foodservice operators. It usually results from a stuck water inlet valve or a faulty control board, resulting in continuous overfilling. <\/p>\n\n\n\n
So, it is an easy diagnosis. However, a dump or purge valve failure is a persistent leak specifically during the freeze cycle. That slow drain steals water and starves the pump over the course of the batch, leading to thin ice bridges, incomplete harvests, and eventual solid freeze-up.<\/p>\n\n\n\n
We specifically focus on a partial leak during the freeze cycle on Hoshizaki KM-series cubers. It is not the more commonly documented fault where water never stops filling and no ice forms, which points to the inlet water valve or the control board. If your machine still makes ice, just worse ice every day, you are in the right place.<\/p>\n\n\n\n
Key Takeaways<\/strong><\/p>\n\n\n\n\n