Oven displays E2 and may shut off or refuse to start; temperature reading may be inaccurate.

Safety First: Turn off power if the oven is overheating.

• Verify actual temperature: Use an oven thermometer to compare actual cavity temperature to the set temperature. Large discrepancies indicate sensor or control issues.
• Test sensor: With power off, measure the oven temperature sensor resistance at room temperature and at a known elevated temperature (e.g., 200°C). Compare to Insignia’s resistance chart (typically ~1650 Ω at 200°C). Replace if readings are inconsistent.
• Check sensor mounting: Ensure the sensor is firmly mounted and not touching the oven wall directly, which can skew readings.
• Control calibration: Some Insignia models allow temperature calibration in the settings menu. Adjust only if the sensor tests good and the error is minor.
• Replace control board: If sensor and wiring are correct but E2 persists, replace the electronic oven control board.