E4 displayed; the oven may not heat or may shut off.

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.

Possible Causes

Mis-calibrated oven sensor, loose sensor harness, faulty EOC calibration data

Safety first: Disconnect power before testing.

Verify actual temperature:
- Use an accurate oven thermometer to compare the set temperature versus the 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 via 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 specification, replace the oven temperature sensor.
- If the sensor is good, replace the electronic oven control board.

Medium 3/5

Oven Temperature Sensor (RTD)

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