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Model library · KitchenAid Ice Maker

KUIS15NNZB

KitchenAid KUIS15NNZB Ice Machine Service

KitchenAid ice maker

Most common issues on this model

  1. Temperature sensing that drifted with age, so the machine never settles into a steady freeze cycle
  2. Water supply trouble in the valve, line or filter housing on plumbed installations
  3. Compressor start relay or overload wear, heard as a click every few minutes with no cooling after it
  4. Electronic control failure, where the machine runs but ignores the panel
  5. Scale and slime in the water path that spoil ice quality

When a KUIS15NNZB stops making ice, the answer lies in one of three places: the water, the sensing or the cooling system. A kitchen or bar install normally gives it a supply line behind the cabinet and a drain below, so there is plenty to check before blaming the machine itself.

Our first step is the sound. A relay that clicks every few minutes without the compressor following it points to the start parts, while a quiet machine with a cold sump suggests the control is not calling for ice. Next, we check the temperature sensing against a reference reading, since an aged sensor can hold the cycle in the wrong mode for hours.

On plumbed jobs we then open the filter housing and test flow at the valve. A written quote comes first, and every repair is covered by a 30-day workmanship warranty.

Key features

  • Base model KUIS15NNZB
  • Ice maker category
  • Legacy model still serviced
→Codes

Error codes this model can show

KUIS15NNZBKUIS15NNZB questions
My KUIS15NNZB clicks but never cools. What are you looking at?

A click with no compressor start usually means the relay or overload has worn. We test both with a meter, check the compressor windings, and confirm the machine gets full voltage at start so we replace only what has actually failed.

The panel lights up but nothing happens. Is the board dead?

Not necessarily. We first rule out a bad sensor or a loose connector, because those make the control behave the same way. If the board tests bad on the bench readings, we replace it and test a full cycle.

Does a clogged water filter matter on this model?

Yes. A restricted filter cuts the water reaching the freeze plate, so ice comes out thin or the cycle times out. We change the filter, then measure flow into the machine.

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Book in about a minute, or call the desk. Same-day windows inside the Loop on most days, next-day across the rest of Houston.

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