New World Defrost System Failure

Freezer interior too warm, compressor runs continuously, heavy frost or ice build‑up on rear panel or around 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

Failed defrost heater, Open defrost thermostat/bi‑metal, Faulty defrost sensor (NTC), Main control PCB not initiating defrost

How to Fix / Troubleshooting

Safety: Unplug the freezer before defrosting or testing electrical components. Water from melting ice can create slip hazards; use towels.

Steps to address heavy frost and warm interior:

  • 1. Manual defrost: Empty the freezer and allow it to defrost completely with doors open. Do not use sharp tools to remove ice.
  • 2. Access evaporator: Remove the rear inner panel to expose the evaporator, defrost heater, and defrost thermostat/sensor.
  • 3. Test heater and thermostat: With power off, check continuity of the heater and thermostat. Replace any open components with genuine New World defrost parts.
  • 4. Inspect defrost sensor: Test the NTC sensor resistance and compare to expected values. Replace if out of range.
  • 5. PCB evaluation: If all defrost components are good, the main control PCB may not be triggering defrost cycles and may need replacement.

Tip: After repair, monitor for several days to ensure frost does not rapidly build up again.

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Repair Difficulty

Hard 4/5

Required Part

Defrost Heater
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