Toshiba Temperature Calibration / Sensor Drift

Oven heats but temperature is inaccurate; food undercooked or overcooked compared to set 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

Aged temperature sensor, Poor sensor mounting or contact, Control board calibration drift, Door seal leakage affecting cavity temperature

How to Fix / Troubleshooting

Safety first: Turn off power before accessing internal components.

  • Verify with oven thermometer: Place an accurate oven thermometer in the center of the Toshiba oven and compare actual temperature to the set value over several cycles.
  • Check sensor mounting: Ensure the cavity sensor probe is firmly fixed in its bracket and not touching the wall directly, which can skew readings.
  • Replace sensor if drifting: If readings are consistently off by a large margin, replace the temperature sensor with a Toshiba-specified NTC probe.
  • Use calibration function: Some models allow temperature offset adjustment in the settings menu. Apply a small offset (+/− 10–20°C) to correct minor inaccuracies.
  • Inspect door seal: Replace a worn or torn door gasket that allows heat to escape and affects temperature stability.
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Repair Difficulty

Medium 3/5

Required Part

Cavity Temperature Sensor (NTC Probe)
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