F1
Falcon Oven Temperature Sensor or Control Board Fault

Electric Falcon range shows F1 on the display and beeps continuously; oven functions may be disabled.

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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

Open or shorted oven temperature sensor (RTD probe), Damaged sensor wiring harness, Failed electronic oven control (EOC) / clock PCB, Loose connector at control board sensor terminals

How to Fix / Troubleshooting

Safety first: Disconnect the range from power at the breaker before removing any panels. High voltage is present even when the oven is off.

  • Power reset: Turn the cooker off at the mains for 5–10 minutes, then restore power. If F1 clears and does not return, it may have been a transient fault.
  • Check oven sensor resistance:
    • Remove the rear panel (for freestanding Falcon ranges) or access the sensor from inside the oven cavity (small probe usually at the rear wall).
    • Unplug the oven temperature sensor connector.
    • Measure resistance with a multimeter at room temperature; most Falcon sensors read ~1080 Ω at 20°C. If reading is open (OL), shorted (near 0 Ω), or far from spec, replace the sensor.
  • Inspect wiring: Trace the sensor harness from the probe to the electronic oven control (EOC) behind the control panel. Look for burnt, pinched, or broken wires and reseat any loose connectors.
  • Control board check: If the sensor and wiring test good but F1 persists, the EOC/clock PCB is likely faulty and should be replaced. Label and photograph all connections before swapping the board.

Do not bypass the sensor or operate the oven with a known sensor fault; this can cause overheating and fire risk.

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Repair Difficulty

Medium 3/5

Required Part

Oven Temperature Sensor (RTD Probe)
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