Sub-Zero 700 Series Ice Maker Fill Tube Heater


  • Does the ice maker fill tube on a 700 Series have a heater to prevent the fill tube from freezing?
  • Fill tube continually freezing, needs to be defrosted manually
  • Fill tube heater is missing
  • Can fill tube heater 7014705 be installed with the heated icemaker cover 4204770?

Steps to Verify Issue:

All 700 Series Sub-Zero models that are equipped with an ice maker have a fill tube heater to prevent the fill tube from freezing.

  1. If frozen, defrost the freezer. Refer to Manually Defrost a Sub-Zero for instructions.
  2. If the fill tube on a 700 Series is repeatedly freezing, no troubleshooting is available.


If these steps do not resolve the issue, no further customer troubleshooting advice is available. Contact Factory Certified Service to schedule an appointment for repair.

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