Oven displays F31; may not heat or may shut down quickly.

Safety First: Disconnect power at the breaker before testing.

• Inspect sensor and wiring:
  • Remove the oven temperature sensor from the back wall.
  • Check for visible damage, melted insulation, or bare wires touching metal.
• Measure sensor resistance:
  • With the sensor disconnected, measure resistance at room temperature.
  • If reading is very low (near 0 Ω) or far below 900 Ω, replace the Oven Temperature Sensor (RTD).
• Check for shorts to chassis:
  • With sensor disconnected at both ends, check continuity from each sensor lead to oven chassis.
  • If continuity exists, repair or replace the Oven Sensor Harness where it is shorted to metal.
• Control board:
  • If sensor and harness are good but F31 persists, the EOC may be misreading resistance; replace the Electronic Oven Control (EOC).