Frigidaire FEF339FSC electric range Parts

On the Frigidaire FEF339FSC electric range, an F30 error points to a problem in the oven temperature sensing circuit (most often the oven temperature sensor or its wiring). We fix it by checking the sensor resistance, inspecting the harness connections, and replacing the failed part if readings or wiring are out of spec.

• Turn off power at the breaker before touching any wiring.
• Let the oven cool completely.
• Inspect the sensor connector and harness for loose pins, corrosion, or heat damage.
• Reseat the connector firmly; a partially backed-out plug can trigger F30.
• If the code returns, test the sensor circuit with a multimeter.

1. Disconnect power.
2. Access the sensor connector (typically inside the oven cavity or from the rear, depending on the build).
3. Unplug the sensor from the harness.
4. Measure resistance across the sensor terminals.

Most Frigidaire-style oven sensors read about 1,080 ohms at room temperature (around 70°F). A reading that is open (infinite), shorted (near 0), or far from typical indicates a bad sensor.

If your sensor tests bad, the replacement is typically the oven temperature sensor. For this model page, the listed sensor is the oven probe 316233903.

If the sensor tests good, the issue is commonly a damaged harness/connector or a control problem. If you see burning at the power connection area, inspect the terminal block and wiring; the model page lists the kelvinator range terminal block 5304409888.

When the control cannot trust the temperature signal, it may shut down heating for safety and accuracy. Fixing the sensor circuit restores normal baking, prevents overheating, and stops nuisance shutdowns.

For additional code-specific guidance, use our Frigidaire self-cleaning range error codes reference as a starting point for Frigidaire range fault logic.

Last updated: January 2026

To reset your Frigidaire electric range model FEF339FSC, turn the range off and reset power at the breaker (or unplug it) for about 30 seconds, then restore power. This clears many control glitches; if the oven or burners still do not heat, focus next on power supply and heating components.

• Set all surface controls to OFF.
• If the range is plugged in, unplug it; otherwise switch the range breaker OFF.
• Wait 30 seconds.
• Restore power.
• Set the clock and test Bake and one surface element.

A reset will not fix a loss of 240V power or a failed heating circuit. Check these common causes:

• Tripped breaker: many electric ranges use a 2-pole breaker; one side can trip and leave you with partial power.
• Loose power cord/terminal connection: a burned or loose connection can stop heating.
• Failed bake or broil element: the oven may not heat properly if an element is open.
• Temperature sensor issue: inaccurate sensing can cause poor heating or error codes.
• Control problem: a failed electronic control can prevent elements from energizing.

Resetting power is a fast way to clear a stuck control state, but electric ranges still need a solid 240V supply and working elements, sensor, and controls to heat correctly. Identifying whether the issue is power-related or part-related saves time and prevents repeat failures.

For display fault codes after the reset, use our Frigidaire self-cleaning range error codes guide to match the code to the most likely circuit.

Last updated: January 2026

A Frigidaire electric range like model FEF339FSC typically lasts 13 to 15 years with normal household use. Keeping the oven temperature accurate and fixing heating issues early (like a weak element) helps you reach the full expected lifespan.

• Heavy daily cooking and frequent self-clean cycles
• Power supply issues (loose cord connections, overheating at the terminal block)
• Worn heating components (bake and broil elements)
• Door seal leaks that force longer heat times
• Control problems that cause temperature swings

• If baking is slow or uneven, inspect the bake element for blisters, cracks, or burn spots; replace it if damaged.
• If broil is weak, check the broil element for visible damage.
• If the oven runs hot or cold, test temperature with an oven thermometer and consider the sensor/probe.
• If you smell hot wiring or see discoloration at the power connection, stop using the range and inspect the terminal block.

Most “range is worn out” complaints are actually a single failed part (element, probe, switch, or wiring connection). Replacing the right component restores safe, consistent heating and can extend the service life of your Frigidaire FEF339FSC.

Last updated: March 2026