F3
Etna
Oven Temperature Sensor Short Circuit
Etna oven displays F3 and stops heating.
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
Shorted NTC sensor, Sensor wiring shorted to chassis, Moisture in sensor connector, Faulty control board interpreting sensor signal
How to Fix / Troubleshooting
Safety: Disconnect power before testing the sensor circuit.
- Measure sensor resistance: Remove the sensor connector and measure resistance. A very low value (near 0 Ω) indicates a shorted sensor.
- Inspect wiring: Check the harness from the sensor to the control board for insulation damage or contact with metal parts.
- Dry connectors: If there are signs of moisture, dry the connector and surrounding area thoroughly.
- Replace sensor: Install a new Etna oven temperature sensor if the original is shorted or damaged.
- Control board check: If a known-good sensor still results in F3, the control board input circuit may be defective and require 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