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GE·Oven / Rangehigh severity
GE Error Code F3
Open oven sensor RTD
Common Causes
- 1Broken sensor wire
- 2Disconnected sensor plug
- 3Sensor element failure
Self-clean cycles stress the sensor at 900F+ — if F3 appeared during or after self-clean, the sensor likely failed from thermal fatigue. Common on units over 5 years old.
Step-by-Step Troubleshooting
- 1
Power off at breaker
- 2
Locate oven sensor probe at the top-rear of the oven cavity
- 3
Check sensor connector at the back of the range — reseat if loose
- 4
Measure sensor resistance at connector (expect ~1080 ohms at room temp)
- 5
If resistance reads open (OL/infinite), the sensor or wiring is broken
- 6
Trace wiring from sensor to ERC for breaks — replace sensor if element is open
Pro Diagnostic Tip
F3 (open) and F4 (shorted) both point to the same sensor but indicate opposite failure modes. If you get both codes alternating, the wiring has an intermittent break — flex the harness while measuring resistance to find the break point.
You Might Also Notice
- •Oven will not heat
- •Display shows temperature but oven stays cold
- •F3 appears during self-clean cycle
Parts, Cost & Difficulty
Repair Difficulty
Moderate — Some Experience NeededEstimated Repair Cost
$100–$250
Parts + labor. Free diagnosis with repair.
Parts That May Need Replacement
WB21X5301 oven temperature sensorWB27X25555 sensor wiring harness
Do You Have the Right Tools?
Combustion analyzer ($300), igniter tester ($120), temperature calibrator ($150), and gas pressure manometer. Our technician arrives with $15K+ in professional tools — your diagnostic is free.
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Safety First — Know the Risks
Gas ovens involve live gas lines — a loose connection creates explosion and carbon monoxide risk. Electric ovens run on 240V circuits. Our techs are licensed and insured — let them handle the risk.
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Get Professional Help Now
Error code F3 is a high-severity issue that can cause further damage to your oven / range if left unresolved. A licensed technician can diagnose and fix it the same day.
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Frequently Asked Questions
What does GE error code F3 mean?
GE error code F3 indicates: Open oven sensor RTD. This is a high-severity issue affecting your oven / range.
How do I fix GE error code F3?
Power off at breaker Then, Locate oven sensor probe at the top-rear of the oven cavity Then, Check sensor connector at the back of the range — reseat if loose There are 3 more steps — see the full troubleshooting guide above. This repair typically requires professional tools and expertise.
How do I know if my oven / range has error F3?
Besides the error code on the display, common signs include: Oven will not heat; Display shows temperature but oven stays cold; F3 appears during self-clean cycle. If you notice any of these symptoms, check your oven / range's display panel for error code F3.
How much does it cost to fix GE F3?
Repair costs for GE F3 typically range from $100 to $250 depending on the specific cause and parts needed. EasyBear offers free diagnosis when you proceed with the repair. Call (415) 795-7300 for a same-day appointment.