Oven temperature is consistently too hot or too cold compared to the set temperature.

Safety first: Use caution around hot surfaces when testing temperatures.

• Measure actual temperature: Place an oven-safe thermometer in the center of the oven and run at 350°F for at least 20–30 minutes. Record the average temperature.
• Adjust calibration: If the average is off by more than ±15°F, use the oven's settings menu to adjust the temperature offset (e.g., +20°F or -20°F).
• Check sensor: If calibration cannot correct the issue, test the sensor resistance at room temperature and replace if out of range.
• Inspect fan and vents: Ensure convection fan (if equipped) runs properly and vents are not blocked, which can cause uneven readings.

Note: Always allow sufficient preheat time before judging temperature accuracy.