Hotpoint-Ariston Partial Evaporator Frost Pattern / Sealed System Issue

Frost-free (No Frost) Hotpoint-Ariston freezer has ice buildup only on one side of the evaporator.

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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

Low refrigerant charge, Restricted capillary tube, Weak compressor, Internal evaporator leak

How to Fix / Troubleshooting

Safety first: Unplug the freezer before removing panels. Do not cut or open any refrigerant lines.

  • Inspect frost pattern: Remove the internal rear panel and observe the evaporator after 20–30 minutes of running. A healthy system shows even frost across most of the coil.
  • Recognize sealed system fault: Frost only on a small section (usually near the inlet) indicates a sealed system problem.
  • Do not attempt sealed system repair: Refrigerant handling requires specialized tools and certification.
  • Contact a professional: Arrange service with a qualified refrigeration technician to evaluate for leaks, restrictions, or compressor failure.
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Repair Difficulty

Professional Required 5/5

Required Part

Evaporator Coil
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