E3
Frigidaire Professional Oven Over-Temperature Detected

E3 displayed; oven overheats or shuts down during use

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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

Shorted oven sensor, Stuck bake or broil relay, Cooling fan failure, Blocked vents

How to Fix / Troubleshooting

Safety first: Turn off power immediately if the oven is overheating. Allow to cool fully.

  • Check sensor:
    • Test the oven temperature sensor as described for F30/F31.
  • Inspect control relays:
    • Remove the rear panel and inspect the EOC for stuck or welded relays (burn marks).
    • If a relay is stuck closed, replace the electronic oven control board.
  • Verify cooling:
    • Ensure the cooling fan runs and vents are clear (see F96).
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Repair Difficulty

Hard 4/5

Required Part

Electronic Oven Control Board (EOC)
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