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

Undercounter ice maker: ice slab will not release or sticks on the cutting grid

Grid-cutter (slab) ice makers freeze a sheet, release it during harvest and let a heated wire grid cut it into cubes. Most release problems come from an unlevel cabinet, scale on the evaporator plate, or a cutting grid that is unplugged or not heating. Harvest switches and probes are next.

Cross-checked ~60 min moderateBrands: Whirlpool / KitchenAid, Scotsman, Manitowoc, Summit

Before you start

  • Unplug before reaching into the freezing compartment or touching the cutting grid.
  • Use only plastic tools on the evaporator plate.
  • Hot-gas valve and refrigerant circuit are sealed-system work: refer to an EPA 608-certified tech.

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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Undercounter ice maker: ice slab will not release or sticks on the cutting grid · OnCall Tech