GE Oven Probe Thermistor WG02F05721

The WG02F05721 is a genuine OEM oven temperature probe (thermistor) for GE electric and gas ranges. The probe monitors oven cavity temperature and sends resistance readings to the control board, which uses this data to regulate the bake and broil elements. When the probe fails or drifts out of spec, the oven may run too hot or too cold, display F3 or F4 error codes, or refuse to operate entirely.

✓ Common Symptoms Fixed

• Oven temperature inaccurate — too hot or too cold
• F3 or F4 error codes displayed on control panel
• Oven not heating or shutting off prematurely
• Oven overshooting or undershooting set temperature
• Baking results inconsistent or food burning/undercooking

✓ Key Specifications

OEM part number: WG02F05721. Replaces: WB20T10024, WB20T10025. Weight: 5 lbs. Genuine GE OEM replacement — direct fit, no modifications required. Compatible with GE electric and gas ranges — verify by model number.

✓ Replacement Part Numbers

WG02F05721 directly replaces: WB20T10024, WB20T10025.

✓ Installation Tips

CRITICAL: Disconnect power before servicing. The probe is typically located inside the oven cavity at the upper rear wall. Remove the single mounting screw, pull the probe forward, and disconnect the wiring harness connector. Connect the harness to the new probe, insert it into the cavity wall, reinstall the screw, restore power, and run a bake cycle to verify temperature accuracy. If error codes persist, clear them by unplugging the range for 5 minutes.

✓ Frequently Asked Questions

How do I know if my oven probe is bad?
If your oven displays F3 or F4 error codes, or if baking results are consistently off (burning or undercooking at the correct set temperature), the probe is the most likely cause. Test with a multimeter — see Pro Tip above.

Is installation difficult?
This is a simple 10–15 minute repair requiring only a screwdriver. Always disconnect power before starting. Contact our support team if you need guidance.

Do you offer returns?
Yes. Visit our return policy page for full details.

✓ Model-Specific Repair Pages