The oven heats, but the temperature is inaccurate compared to the setting; no error code is displayed.

Safety first: Disconnect power before accessing internal components.

• Measure actual temperature: Place an oven thermometer in the center of the cavity. Compare readings at several setpoints (e.g., 160°C, 200°C). Note any consistent offset.
• Adjust calibration: If your Fagor model supports it, enter the settings menu and adjust the temperature offset (e.g., ±10–30°C) to match the thermometer.
• Check sensor: Test the NTC sensor resistance at room temperature and compare it with specifications. Replace if significantly off.
• Inspect door seal and insulation: Replace a worn gasket and check for obvious insulation gaps around the door frame that could cause heat loss.