F3 error code on Fagor range; oven does not heat properly.

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.

Possible Causes

Disconnected or broken sensor wiring, Failed oven temperature sensor, Loose connector at control board

Safety first: Disconnect power before accessing rear panels or control area.

Check wiring: Remove the rear panel and trace the two‑wire harness from the oven sensor to the control board. Look for cuts, burns, or disconnections.
Reseat connectors: Unplug and firmly reconnect the sensor plug at both ends.
Test sensor: Measure resistance at the sensor leads. If open circuit, replace the sensor.
Replace harness if damaged: If the wiring is burnt or brittle, replace the harness section.

Medium 3/5

Oven Temperature Sensor (Probe)

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