Oven overheats and burns food even when set to a moderate temperature, no error code shown.

Safety first: If the oven overheats severely, switch off power immediately to prevent fire.

• 1. Confirm with thermometer: Place an oven thermometer inside and compare actual temperature to the set point. If the difference is large (>30°C), proceed with checks.
• 2. Test sensor: With power off, measure the resistance of the temperature sensor at room temperature. Replace if out of specification.
• 3. Inspect control board: Look for a relay that may be welded closed, keeping an element on continuously. Replace the board if a stuck relay is suspected.
• 4. Do not bypass safety devices: Never bypass thermal cutouts or thermostats to "fix" overheating. Replace faulty components with correct Fisher & Paykel parts.

Persistent overheating without a visible cause should be investigated by a qualified technician.