Oven overheats, temperature far above setpoint, food burns quickly

Safety first: Turn off power at the breaker before opening any panels. Overheating can be a fire risk; do not leave the oven unattended.

• Check cavity temperature sensor (NTC probe): Locate the metal probe inside the oven cavity (usually at the rear or side). Remove the inner screws and gently pull the sensor into the rear service area. Disconnect and measure resistance at room temperature; Brandt NTC sensors typically read around 500–1100 Ω (check service manual for exact spec). If reading is very low (near 0 Ω) or infinite, replace the sensor.
• Inspect sensor wiring: Follow the sensor harness to the main control board. Look for pinched, melted, or shorted wires touching the metal chassis. Repair or replace damaged wiring and secure with high‑temperature cable ties.
• Check control board relay: On the main PCB, identify the heating element relay. Inspect for welded contacts (relay stuck closed). If the oven heats even when off or continues heating after reaching temperature, the relay may be stuck. Replace the control board or have the relay professionally replaced.
• Recalibrate (if available): Some Brandt models allow temperature calibration via the user menu. After replacing the sensor, run a temperature test with an oven thermometer and adjust calibration according to the user manual.

If overheating persists after sensor replacement, discontinue use and call a technician, as the control board may be unsafe.