Quick diagnosis
What this code is telling you
Most likely trigger
Defective oven RTD temperature sensor
Recommended replacement
Oven Temperature Sensor Probe
Diagnostic path
4 ordered checks
Part fit
Exact model number required
Safety first
Before opening the appliance
Unplug the appliance before removing panels or testing internal components. Do not bypass safety switches or live-test high-voltage, gas, refrigerant, or combustion components unless you are qualified to do so.
Read the full safety disclaimerRoot cause
Why the control reported this error
The cooking control displays this code when it detects an abnormal temperature, control, lock, or power condition. Verify defective oven RTD temperature sensor first, then inspect for melted or broken sensor wire harness behind rear panel and corroded wire connector plug before replacing oven Temperature Sensor Probe.
Symptoms
What you may notice
- ✓Oven will not start heating
- ✓Beeping alarm sounds on control panel
- ✓F30 flashes on digital clock
Possible causes
Check the most likely causes first
- 1
Defective oven RTD temperature sensor
Start here when it matches your symptoms.
- 2
Melted or broken sensor wire harness behind rear panel
- 3
Corroded wire connector plug
- 4
Faulty oven control board (ERC)
Diagnostic sequence
Work through these checks in order
Stop when you find the fault. Do not perform a step that requires skills or live testing you are not qualified to do.
- 1
Check 1
Disconnect power to range.
- 2
Check 2
Disconnect electrical power before opening panels. Access sensor plug from inside oven cavity or back panel and test resistance with multimeter (~1080 ohms at room temperature).
- 3
Check 3
Disconnect electrical power before opening panels. Inspect wire harness for burnt insulation near back wall.
- 4
Check 4
Disconnect electrical power before opening panels. Replace oven temperature sensor probe if resistance reading is infinite.
Replacement part reference
Oven Temperature Sensor Probe
Exact OEM part number
Model number required
Fitment note
The exact OEM part number varies by model and production revision. Verify the complete model number before ordering.
Verify the appliance model before ordering.
Manufacturers can use different parts under the same error code across model families and production revisions.
Where do I find my model number? →FixCodeDB may earn a commission from qualifying purchases made through affiliate links.
Common questions
Quick answers for this fault
What should I check first for F30?
Start with defective oven rtd temperature sensor. If that checks out, continue through the diagnostic sequence above rather than replacing a part based on the code alone.
Does F30 always mean Oven Temperature Sensor Probe is bad?
No. An error code identifies the condition the control detected, not a guaranteed failed part. Confirm the likely causes and wiring first. The exact OEM part number varies by model and production revision. Verify the complete model number before ordering.
When should I stop troubleshooting F30 myself?
Stop if the next step requires live electrical testing, sealed-system work, gas or combustion service, or any procedure outside your training. Unplug the appliance before removing panels or testing internal components. Do not bypass safety switches or live-test high-voltage, gas, refrigerant, or combustion components unless you are qualified to do so.
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Keep diagnosing
Related GE guides
Bad Line appears when the range or oven detects incorrect electrical wiring at the power connection.
GE documents F0, F1, F6, and F7 as keypanel-related faults on applicable ranges and wall ovens.
F2 or F20 indicates that oven temperature exceeded a preset safety threshold.
GE documents F3 and F4 as oven-temperature-sensor faults on applicable ranges and wall ovens.
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