F15
Falcon Flame Supervision Device (FSD) / Thermocouple Fault

Gas oven lights but goes out shortly after releasing the knob, error displayed

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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

Weak or failed thermocouple, Misaligned burner flame not heating sensor, Faulty gas valve FSD, Dirty burner affecting flame stability

How to Fix / Troubleshooting

Safety: Turn off gas and power. Gas-related repairs should be carried out by a qualified gas engineer.

  • Clean burner: Remove and clean the oven burner to ensure a stable, blue flame that fully envelops the Falcon oven thermocouple tip.
  • Check thermocouple position: Ensure the thermocouple tip is correctly positioned in the flame. If bent away, gently reposition.
  • Replace thermocouple: If the flame still goes out when the knob is released, the thermocouple may not be generating enough voltage. Replace with the correct Falcon oven thermocouple.
  • Gas valve: If a new thermocouple does not resolve the issue, the FSD section of the Falcon gas oven valve may be faulty and should be replaced by a professional.
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Repair Difficulty

Professional Required 5/5

Required Part

Falcon oven thermocouple
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