Frigidaire Range F30 Error Code — What It Means
The F30 error code on a Frigidaire electric range indicates an open probe or open temperature sensor circuit. The range’s control board is not receiving a valid signal from the oven temperature sensor (also called the RTD, or resistance temperature detector). This means there is an open circuit somewhere in the sensor, its wiring, or the connection path between the sensor and the control board.
The fault prevents the oven from accurately reading its internal temperature, so the control board shuts down operation and displays the error. Although the code points to an open circuit, technicians also check for shorts to ground on the sensor circuit during diagnosis. Frigidaire recommends starting with a power reset, but if the code returns, the sensor or its wiring typically needs repair or replacement.
Before You Replace Anything
Many people replace the electronic control board first, assuming the sensor is fine. Always test the sensor resistance (should be about 1,000 to 1,100 ohms at room temperature) and inspect its connector for corrosion or looseness before replacing the control board.
Common Causes
- Failed oven temperature sensor (RTD) (~50%) The sensor probe has failed open or reads out of specification, preventing the control board from seeing a valid temperature signal.
- Loose, corroded, or damaged sensor connector (~25%) The harness connector at the sensor or control board has come loose, corroded, or developed a poor contact, breaking the circuit.
- Broken or shorted sensor wiring (~15%) The wiring harness between the sensor and control board is damaged, pinched, or shorted to the metal cabinet, creating an open or intermittent connection.
- Failed electronic control board (~10%) The control board’s sensor input circuit has failed, even though the sensor and wiring test correctly.
Quick Diagnosis
Answer these to narrow it down fast.
Does the error clear for more than a few minutes after you unplug the range for 30 seconds and restore power?
No: The sensor or its circuit has a permanent fault. Proceed to test the sensor resistance and inspect the wiring.
Does the oven temperature sensor measure between 1,000 and 1,100 ohms at room temperature with a multimeter?
No: The sensor has failed (reads open, infinite resistance, or far out of range). Replace the oven temperature sensor.
Are the sensor connector terminals clean, tight, and free of corrosion?
No: Clean the connector terminals with contact cleaner, make sure they are fully seated and tight, then reset the range and retest.
Step-by-Step Fix
- Disconnect power to the range at the breaker or by unplugging it before beginning any work.
- Reset the range by leaving power off for 30 seconds, then restore power and check if the F30 code clears. If it returns, continue diagnosis.
- Access the oven temperature sensor by removing the back panel inside the oven cavity or the rear access panel (model-dependent). The sensor is a probe mounted in the rear wall of the oven.
- Disconnect the sensor connector and use a multimeter set to measure resistance (ohms). Measure across the sensor terminals at room temperature. It should read about 1,000 to 1,100 ohms. If it reads open (infinite) or far out of range, replace the sensor.
- Inspect the sensor wiring harness from the sensor to the control board. Look for pinched, burned, or cut wires, and check that the harness is not contacting or shorting against the metal cabinet. Repair or replace damaged wiring.
- Check all connectors for corrosion, bent pins, or loose fit. Clean with electrical contact cleaner if needed and make sure connectors are fully seated.
- Replace the oven temperature sensor if it tested faulty. Install the new sensor, reconnect the harness, and secure the rear panel. Restore power and run a test cycle to verify the code does not return.
- Test the control board if the sensor and wiring both test correctly but the F30 code persists. At this point, the control board’s sensor input circuit is the remaining likely cause and may need replacement.
Parts Often Needed
| Part | Notes |
|---|---|
| Oven temperature sensor (RTD probe) | Amazon | Verify the part number for your specific Frigidaire range model. The sensor is usually mounted in the rear oven wall. |
| Sensor wiring harness | Amazon | Order if the harness is damaged, burned, or the connector housing is cracked. Not always sold separately. |
| Electronic control board (EOC) | Amazon | Replace only after confirming the sensor and wiring are good. Match the control board part number to your range model. |
When to Call a Pro
Call a professional if you are not comfortable working with 240-volt electric range wiring or if your diagnosis points to a control board replacement and you want confirmation before ordering an expensive part. A technician can perform advanced circuit tests on the control board’s sensor input and verify the entire sensor circuit with precision equipment. If the sensor and wiring are accessible and you are comfortable using a multimeter, this is a straightforward DIY repair. However, if the wiring runs through difficult-to-reach areas or if you find multiple damaged circuits, a pro can make sure safe and complete repair.
Rough cost: DIY runs about $20-60 in parts, 30-60 min. A pro service call runs about $150-300.