F03
Fagor Insufficient Heating / Sensor Calibration Fault

Oven does not reach set temperature, takes very long to heat, undercooks food

Advertisements

Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

Advertisements

Possible Causes

Degraded oven temperature sensor (NTC drifted high), Partially failed heating element, Poor door seal causing heat loss, Faulty control board temperature regulation circuit

How to Fix / Troubleshooting

Safety first: Isolate the oven from mains power before removing panels or accessing wiring.

  • Verify actual temperature: Place an accurate oven thermometer in the center of the cavity. Set the oven to 200°C and allow 20–30 minutes. Compare the displayed temperature to the thermometer. If the difference is large (±30°C or more), proceed with checks.
  • Check elements: Inspect the circular fan element and bottom element for hot spots, cracks, or partial burn-through. Test resistance with a multimeter; a significantly higher resistance than spec can indicate a weak element. Replace any suspect element.
  • Inspect door gasket: Check the Fagor door seal all around for gaps, tears, or hardened sections. Close the door on a sheet of paper; it should grip firmly all around. Replace the gasket if loose or damaged.
  • Test temperature sensor: Remove and measure the NTC sensor resistance at room temperature and at a known warm temperature (e.g., 100°C in hot water, disconnected). If readings are unstable or far from expected values, replace the sensor.
  • Control calibration: Some Fagor models allow temperature offset calibration in the settings menu. Consult the user manual to adjust if the oven is consistently off by a fixed amount. If calibration does not help, the control board may need replacement.
Advertisements

Repair Difficulty

Medium 3/5

Required Part

Oven Temperature Sensor
Check Price on Amazon

We may earn a commission from links on this page.

Advertisements