Hoshizaki No Ice Production

Unit runs but makes no ice at all

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Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

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Possible Causes

Water supply off or insufficient, Failed water inlet valve, Severely dirty condenser causing safety shutdown, Refrigerant system failure (low charge, restriction, failed compressor)

How to Fix / Troubleshooting

Safety First: Disconnect power and water before removing panels. Refrigerant work must be done by a certified technician.

  • Confirm water supply: Ensure the shutoff valve is open and water pressure is within spec. Replace clogged filters and clean inlet screens.
  • Check for error beeps or codes: Note any beep patterns or display codes and refer to the service manual for specific diagnostics.
  • Clean condenser and evaporator: Perform a full cleaning of the condenser coil and a descaling of the water system and evaporator.
  • Observe operation: After cleaning, restore power and watch the unit. Does it fill, freeze, and attempt harvest? Note where the process stops.

When to call a technician: If the unit still does not form ice after water and cleaning checks, a sealed system or control issue likely exists.

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Repair Difficulty

Hard 4/5
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