GE Range F3 Error: Open temperature sensor circuit
This guide covers GE range F3 error in detail to help you diagnose and resolve the issue. What Does GE Range Error Code F3 Mean? Error code F3 means the control board detected an open circuit in the oven temperature sensor (RTD) or its wiring. Without a valid temperature signal, the board cannot regulate oven […]
Quick Assessment
Answer to continue safely
Is it safe to keep using?
No. Without a working temperature sensor, the control board cannot regulate oven heat safely. There is a risk of uncontrolled overheating. Do not use the oven until the sensor circuit is restored.
Can I reset the code?
Yes. A circuit breaker reset clears the F3 code from the display. However, if the sensor or wiring is physically broken, F3 will return immediately on the next power-on. The code only stays clear after the hardware fault is repaired.
When to stop immediately?
Stop if you notice: F3 returns within seconds of every reset with no cook function active, You see burned or melted wiring near the sensor or control board.
Symptoms You May Notice
Oven will not heat or shuts off within 1–2 minutes of starting
Without a valid temperature reading, the control board refuses to run a heating cycle to completion. The oven may briefly energize the element, then cut power as soon as the board polls the sensor and gets no response.
F3 displayed on the control panel with an alarm
The display shows "F3" and the cancel tone sounds. The code appears at cycle start or within the first heating phase when the board first requests a temperature reading.
Oven temperature display shows dashes or 0 °F
On models that show the current oven temperature on the display, an open sensor circuit causes the temperature readout to show "---" or 0, confirming no signal is being received.
F3 persists immediately after every reset
Unlike transient faults, F3 from a physically broken sensor wire or failed probe returns on every power cycle — the hardware fault does not resolve with a reset alone.
Possible Causes
Failed temperature sensor probe (open circuit)
The RTD sensor element inside the probe has burned out or broken internally, creating an open circuit. Resistance across the sensor terminals will read as infinite (OL) on a multimeter.
DIY PossibleBroken or disconnected sensor wiring harness
The two-conductor wire connecting the sensor probe to the control board has a break or has pulled free from the connector — common after oven cleaning or accidental impact.
DIY PossibleBurned sensor connector or control board input
Extreme oven temperatures, especially from self-clean cycles, can burn the connector pins at the sensor or at the board, breaking the circuit permanently.
Requires ProfessionalSafe Checks You Can Do
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1
Inspect the sensor probe and connector inside the oven
Turn off the circuit breaker. Open the oven door and locate the temperature sensor — a small metal probe (about 2 inches long) protruding from the rear upper wall, held by one or two screws. Check that the sensor wire is connected and not visibly burned or kinked.
The sensor connector is usually just inside the back wall of the oven — pull the sensor probe gently out and inspect the female connector for corrosion or burned pins.
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2
Test sensor resistance with a multimeter
With power off, disconnect the sensor wire connector. Set a multimeter to resistance (ohms) and test across the two sensor pins. At room temperature the reading should be 1080–1100 ohms. An OL (open loop) or infinite reading confirms a failed sensor.
Replacement RTD sensors for GE ranges are inexpensive (from $20) and are universally held by two screws with a simple plug-in connector — a typical DIY repair requiring no special tools.
Tools required -
3
Trace the sensor wiring to the control board
If the sensor tests good (1080–1100 ohms), the break is in the wiring. Trace the two sensor wires from the probe connector to the control board, looking for any visible pinch, burn, or disconnected terminal. On ranges with a rear access panel, the wiring runs along the back wall.
A wiring break is common if the oven was recently self-cleaned at maximum temperature — the intense heat can melt poorly routed wiring touching oven cavity walls.
When to Call a Professional
Contact a qualified technician if:
- Sensor tests good and wiring is intact, yet F3 persists — control board input circuit failed
- Burned connector pins at the control board sensor input — board replacement required
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