mypros+
Error code reference

GE Range Error Code F30x

Shorted oven sensor (under 950 ohms).

GE codesGE range codes

Shorted oven sensor (under 950 ohms).

First step from the service manual

a) Disconnect sensor harness from control and measure resistance; should be ~1100 ohms at room temperature with 2 ohms per degree change. b) Look for damaged harness terminals/pins if resistance is OK.

The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.

MyPros+ Max

Get the full diagnostic procedure for F30x.

  • Step-by-step tests with expected resistance, voltage, and continuity values
  • Wiring diagram references and connector pinouts from the OEM service manual
  • Verified part numbers when replacement is required
Get the full procedure

$29/month · Cancel anytime · Or $9.95 3-day pass

What F30x means on a GE range

The F30x error code on a GE range indicates a shorted oven temperature sensor, meaning the control board has detected a resistance reading below 950 ohms from the sensor circuit. The oven temperature sensor is a resistive temperature device (RTD) that changes resistance predictably as temperature changes. At room temperature, a properly functioning sensor should measure approximately 1100 ohms, increasing at a rate of roughly 2 ohms per degree of temperature rise. When resistance drops below 950 ohms, the control interprets this as a fault condition and locks out oven operation to prevent inaccurate temperature regulation or potential overheating.

The most direct diagnostic step is to disconnect the sensor harness connector at the control board and measure the sensor resistance with a multimeter. If the reading is within spec (near 1100 ohms at ambient temperature), the sensor itself is not the root cause. In that case, attention should shift to the wiring harness connecting the sensor to the control. Damaged terminals, bent or corroded pins, or wiring that has chafed against the oven cavity can create a low-resistance path to ground that mimics a shorted sensor.

Common causes include a failed sensor element that has internally shorted, heat-damaged wiring inside the oven cavity, or corroded connector terminals creating unintended electrical contact. The x in F30x indicates this code may appear as F300, F301, or similar variants depending on the specific model, but the underlying diagnostic approach remains consistent across the series.

Source: manufacturer service documentation.

Common causes of F30x

  1. 01

    Failed oven temperature sensor

    Part replacement

    The RTD sensor element inside the oven has internally shorted, causing resistance to drop below the 950-ohm threshold. Confirm by disconnecting the sensor harness at the control and measuring resistance directly at the sensor leads; a reading well below 1100 ohms at room temperature confirms sensor failure.

  2. 02

    Heat-damaged wiring harness

    Part replacement

    Wiring routed along the oven cavity wall can melt or char over time, causing insulation breakdown and a short between conductors or to ground. Inspect the harness along its full length inside the oven cavity for any burned, melted, or bare sections.

  3. 03

    Corroded or damaged connector terminals

    Wiring / connection

    The harness connector at the control board can develop corroded, bent, or contaminated pins that create unintended low-resistance contact. If the sensor reads correctly when measured at the sensor itself, inspect the connector terminals carefully for physical damage or oxidation.

  4. 04

    Pinched or shorted harness wire

    Part replacement

    A harness wire pinched between sheet metal panels during a previous repair or installation can develop a short to the oven frame. This will produce a low resistance reading even if the sensor and connector are both in good condition.

See the test procedure for each cause

Frequently asked questions about F30x

What does F30x mean on a GE range?
The F30x code means the control board has detected a shorted oven temperature sensor, with resistance measuring below 950 ohms. The oven sensor is a resistive device that should read approximately 1100 ohms at room temperature. When the reading drops below the threshold, the control flags the fault and disables oven operation. The x in the code can represent different digit variations depending on the specific model.
Can I fix the F30x error myself?
A knowledgeable DIYer can perform the key diagnostic step: disconnect the sensor harness at the control board and measure resistance with a multimeter. If the sensor reads below 950 ohms at the sensor terminals, the sensor needs replacement. If the sensor reads correctly, the problem is in the wiring harness or connector terminals, which can sometimes be repaired by cleaning or re-pinning the connector.
Is it safe to use my GE range while the F30x code is active?
You should not attempt to use the oven while this fault is active. A shorted sensor means the control cannot accurately read oven temperature, which could lead to uncontrolled heating conditions. The control board disables the oven for this reason. Surface burners on gas models may still function, but the oven should remain out of service until the fault is corrected.
Will resetting the range clear the F30x error?
A power reset by unplugging the range or tripping the circuit breaker may temporarily clear the code, but it will return as soon as the control board reads the sensor resistance again and finds it below 950 ohms. The underlying fault must be repaired for the code to stay clear.
How much does it cost to repair the F30x error on a GE range?
If the oven temperature sensor itself has failed, replacement sensors typically cost between $20 and $60 for parts depending on the model. If a technician performs the repair, total costs including labor generally range from $100 to $250. Harness repairs or terminal cleaning are usually on the lower end of that range, while a combined sensor and harness replacement would be toward the higher end.

Related GE range codes

All GE range codes
View all 303 GE range codes

78,000+ service manuals · 160,000+ error codes · 55+ brands

Get Started

$29/month · Cancel anytime · Or $9.95 3-day pass