Outdoor ice merchandiser freezer with an ICE sign on top
Generic photo: Athena Sandrini · Pexels License

Ice machine slime, mold or scale

Scale and biofilm slow harvest and trigger long-cycle codes (e.g. Hoshizaki 2 beeps, Scotsman 2). Clean and sanitize per the manufacturer's procedure and replace the water filter.

Single source ~90 min moderateBrands: All

Before you start

  • Unplug before reaching into the machine.
  • Use only approved cleaners; rinse fully before making ice.
  • Wear gloves and eye protection with chemicals.

Diagnostic steps

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OnCall Tech is a reference tool for trained technicians and can make mistakes. Always disconnect power and confirm with the manufacturer's documentation before you work.

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Ice machine slime, mold or scale · OnCall Tech