New World Weak Heating or Thermostat Calibration Fault

Oven underheats or takes very long to reach temperature

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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

Partially failed element, incorrect thermostat calibration, sensor drift, low mains voltage, poor electrical connection at terminal block

How to Fix / Troubleshooting

Safety: Isolate from mains before testing elements or terminals.

  • Measure preheat time: A typical New World fan oven should reach 180°C in about 10–15 minutes. Longer times suggest a heating issue.
  • Check all elements: Ensure both fan and auxiliary elements heat when appropriate. Test resistance and replace any element with significantly higher resistance than specification.
  • Inspect mains terminal block: Loose connections can cause voltage drop and poor heating. Tighten all screws with power off.
  • Thermostat/sensor check: Compare oven temperature with an oven thermometer. If consistently low, adjust or replace the thermostat (mechanical) or replace the sensor/control board (electronic).
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Repair Difficulty

Medium 3/5

Required Part

Oven Heating Element or Thermostat
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