E4
Frigidaire Professional
Oven Temperature Calibration / Sensor Error
E4 displayed; oven may not heat or may shut off
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Mis-calibrated oven sensor, Loose sensor harness, Faulty EOC calibration data
How to Fix / Troubleshooting
Safety first: Disconnect power before testing.
- Verify actual temperature:
- Use an accurate oven thermometer to compare set vs. actual temperature.
- If off by more than 35°F, test the sensor resistance.
- Calibrate control (if supported):
- Many Frigidaire Professional models allow temperature offset adjustment in the user menu.
- Adjust by small increments (5–10°F) as needed.
- Replace sensor or EOC:
- If calibration cannot correct the issue and the sensor is out of spec, replace the oven temperature sensor.
- If sensor is good, replace the electronic oven control board.
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Repair Difficulty
Medium
3/5
Required Part
Oven Temperature Sensor (RTD)
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