Problems you may notice
• Oven displays F5 error code on the control panel
• Oven fails to heat or maintain temperature during cooking
• Preheating cycle halts unexpectedly
• Unable to select or adjust temperature settings
• Oven beeps repeatedly when attempting to start a cooking cycle
• Temperature display shows inconsistent or erratic readings
• Heating elements may not activate properly
Possible Causes
• Faulty oven temperature sensor (RTD or thermistor)
• Loose or disconnected wiring between sensor and control board
• Damaged temperature sensor probe
• Control board malfunction or processor error
• Voltage fluctuations from North American 120V/240V electrical supply
• Failed thermal cutout switch
• Corroded or damaged electrical connectors
• Buildup of residue or food particles on sensor probe
• Internal wiring harness damage or poor connection
Precautionary measures
• Verify the oven's power connection is secure at both the wall outlet and the appliance terminals
• Check your home's circuit breaker panel to ensure the breaker serving the oven has not tripped; reset if necessary by switching off and back on
• Ensure the oven door is fully closed and latched properly
• Confirm no control lock feature is enabled on the control panel
• Allow the oven to cool completely for at least 30 minutes before attempting troubleshooting
• Power down the oven by switching off its dedicated circuit breaker for 60 seconds, then switch it back on to reset the system
• Attempt to preheat the oven to a standard temperature (350°F) to see if the error recurs
• Check that no obstructions or debris are blocking the oven interior or heating elements
• If the F5 error code persists after these steps, contact a professional appliance repair technician or appliance repair support service to diagnose and repair the temperature sensor or control board
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