Oven will not heat properly and displays F30 error code

Safety first: Disconnect power at the breaker before testing or replacing parts.

• Access the sensor:
  • Locate the oven temperature sensor inside the oven cavity (back wall, upper area).
  • Remove the mounting screws and gently pull the sensor forward.
  • Disconnect the sensor plug.
• Test sensor resistance:
  • Use a multimeter set to ohms.
  • Measure across the two sensor terminals at room temperature.
  • Expected reading: ~1050–1100 Ω at 70°F (21°C). An open (OL) reading indicates a failed sensor.
• Check wiring harness:
  • If the sensor tests good, inspect the harness from the sensor connector to the control board.
  • Look for broken wires, melted insulation, or loose plugs.
  • Reseat the connector at the control board.
• Replace faulty component:
  • If sensor is open or out of spec, replace the oven temperature sensor.
  • If wiring is damaged, repair or replace the harness.
• Test: Restore power and run a bake cycle at 350°F. Confirm normal preheat and no F30 code.