Electrolux Dryer Error Code F3

The F3 code means the control board has detected an open circuit in the oven temperature sensor. This means the sensor is not returning any signal, which the board interprets as a broken or missing connection. The dryer responds by sounding an alarm and disabling all heating modes until the fault is resolved.

The dryer inhibits heating modes when F3 is active, so running a cycle without heat is generally not a safety risk. However, the appliance should not be used for drying until the sensor fault is repaired, since the control board has no reliable temperature data to regulate the heating system properly.

Use a multimeter set to measure resistance or continuity. Disconnect the temperature sensor and test across its two terminals directly. A working sensor should show a measurable resistance value rather than an open reading. If the sensor tests open, it needs replacement. If the sensor tests correctly, check continuity along each wire in the harness between the sensor and the control board to locate any break in the circuit.

Pressing the CANCEL key will silence the alarm and clear the F3 code from the display temporarily. However, the code will return as soon as you attempt to start a heat or cook cycle again. Canceling resets the control to a non-heating mode but does not repair the underlying sensor or wiring fault.

Repair costs vary depending on the failed component. A replacement temperature sensor typically costs between $15 and $50 for the part alone. If the control board is at fault, parts costs can range from $80 to $200 or more. Adding professional labor will increase the total, generally bringing the full repair into the $100 to $300 range depending on the specific fault.