Oven overheats, burning food even at low settings; temperature far exceeds the set value.

Safety first: Immediately switch off the oven and disconnect power if overheating occurs. Do not leave the appliance unattended.

• Test temperature sensor: With power off, measure the sensor resistance at room temperature. A very low resistance or short circuit indicates a faulty sensor that must be replaced.
• Inspect control board: Look for a relay that appears welded or burned. If the relay contacts are stuck closed, the elements may stay on continuously. Replace the control board or have the relay replaced by a professional.
• Check wiring: Verify that elements are wired according to the wiring diagram (often on the rear panel). Incorrect connections after previous repairs can bypass control.
• Do not use until repaired: Overheating is a fire risk. If you cannot identify and correct the cause, contact a qualified technician before using the oven again.