F3
Oven Error Code F3
What it means and how to fix it
What This Error Means
Oven temperature sensor open — the oven temperature sensor (thermistor) has failed or its wiring is broken. The oven won't heat properly. Replace the sensor ($15-25).
Repair Guide for This Error
Samsung Ovens & Ranges — F-3 Error Code (Temperature Sensor)
The F-3 error on your Samsung oven means the oven temperature sensor (also called a thermistor) is not reading correctly. The sensor is a thin metal probe inside the oven that tells the control board how hot it is. Replacing it is one of the easier oven repairs — it is just a probe with a plug.
⚡ Medium⏱ 20-40 minutes💰 $10–$25
View full repair guide →
Other Oven Error Codes
F10Runaway temperature — the oven detected a temperature above safe limits. Could be a faulty temperature sensor, relay stuck closed on the control board, or a wiring issue. This is a safety concern.F1Control board error — the oven's electronic control board has detected an internal fault. Try disconnecting power for 5 minutes. If the error returns, the control board needs replacement.F9Door lock error — the oven door lock mechanism is stuck or the door latch switch is faulty. The oven may think it's in self-clean mode. Check the door latch assembly.