F9
Falcon
Oven Relay or Power Supply Fault
Falcon oven shows F9 and may not heat; sometimes accompanied by tripping the breaker.
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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 bake or grill element, Burnt relay contacts on EOC, Damaged power wiring to elements, Internal short on control board
How to Fix / Troubleshooting
Safety first: Turn off power at the breaker. Verify with a non-contact tester that the range is de-energized.
- Inspect heating elements: Visually check bake and grill elements for blisters, cracks, or burn-through. Replace any damaged elements.
- Test elements: Disconnect element terminals and measure resistance. A dead short (near 0 Ω) or open circuit indicates a faulty element.
- Check wiring: Inspect the harness from the EOC to the elements for burnt insulation or loose terminals. Repair or replace as needed.
- Control board inspection: Remove the control panel and inspect the EOC for burnt spots or damaged relays. If present, replace the EOC.
If the breaker trips immediately when the oven is turned on, do not repeatedly reset it; locate and correct the short first.
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Repair Difficulty
Hard
4/5
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