Oven overheats, may shut down or lock, and displays E02 during or shortly after use.

Safety first: Isolate the oven from power and allow it to cool fully before inspection.

• Visual inspection of sensor and wiring: Locate the cavity temperature sensor at the rear/top of the oven interior. Remove the mounting screw and gently pull the sensor out. Check for melted insulation, exposed conductors, or signs of the sensor touching metal surfaces.
• Measure sensor resistance: With a multimeter, check resistance at room temperature. A reading near 0 Ω indicates a shorted sensor. Replace if shorted or if resistance is far outside the expected range.
• Check for wiring shorts: Follow the harness from the sensor to the control board. Look for areas where the cable may have been trapped by the oven casing or touched the hot cavity wall. Repair or replace the harness if insulation is damaged.
• Control board check: If sensor and wiring are correct, the control board may be misreading temperature. Inspect for burnt tracks or components. Replacement of the board is usually required if faulty.
• Ventilation: Ensure the oven has correct built-in ventilation as per Candy installation instructions; poor ventilation can contribute to overheating faults.