Bertazzoni Rangetops FFD-CUTOUT Error: Flame failure device cutout
What Does FFD-CUTOUT Mean? FFD-CUTOUT describes the behaviour of the flame failure device (FFD) thermocouple safety system fitted to every Bertazzoni gas rangetop — Professional Series, Master Series, and Heritage Series alike. When a burner is lit, the flame heats the thermocouple tip until it generates enough millivoltage to hold the gas valve electromagnet open. […]
Quick Assessment
Answer to continue safely
Is it safe to keep using?
No. Do not attempt to use the burner while FFD cutout is occurring — if the problem persists after holding the knob for 10 seconds and cleaning the thermocouple, arrange service. A faulty thermocouple cannot reliably detect flame loss and may allow unburned gas to accumulate.
Can I reset the code?
No. There is no electronic fault to reset — the FFD is a mechanical safety valve. Correct operation returns when the thermocouple is clean and the knob is held long enough after ignition.
When to stop immediately?
Stop if you notice: Smell of gas near the rangetop after a failed ignition attempt, Burner still cuts out after holding the knob for 15+ seconds and cleaning the thermocouple.
Symptoms You May Notice
Burner lights then goes out 1–3 seconds after releasing the knob
The brass star burner ignites normally from the spark electrode but the flame disappears almost immediately when the knob is released, because the thermocouple tip has not yet heated enough to generate the millivoltage that holds the gas valve open.
Burner can only be sustained by keeping the knob pressed in
Holding the knob depressed keeps the gas valve manually open regardless of thermocouple signal, allowing the burner to remain lit — releasing the knob at any point causes the flame to drop out.
Behaviour occurs on all burner sizes across Professional, Master, and Heritage rangetops
The FFD cutout is a feature of the thermocouple-protected gas valve system fitted to all Bertazzoni star-burner rangetops, so the symptom can appear on any burner from the auxiliary simmer ring to the dual-ring power burner.
Possible Causes
Knob released before thermocouple reached operating temperature
The thermocouple requires 5–10 seconds of direct flame contact to reach the minimum millivoltage needed to hold the electromagnetic gas valve open. Releasing the knob early is the most common cause of FFD cutout.
DIY PossibleThermocouple tip coated with grease or carbon deposits
Accumulated grease or carbonised food residue on the thermocouple tip acts as an insulator, slowing heat absorption and preventing the tip from generating sufficient millivoltage even after 10 seconds of flame contact.
DIY PossibleSafe Checks You Can Do
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1
Hold the knob pressed for 10 seconds after ignition
After the burner ignites, continue to push the knob inward and hold it for a full 10 seconds before slowly releasing it. The flame should remain stable once the thermocouple tip has reached operating temperature.
On the large dual-ring power burner a full 10-second hold is especially important — the wider star configuration puts more distance between the flame and the thermocouple tip.
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2
Clean the thermocouple tip
With the rangetop completely cool and the gas supply off, use a dry cotton cloth or a soft brass brush to gently wipe accumulated grease from the thermocouple tip — the small copper-coloured pin beside the burner head. Do not use water or cleaning sprays directly on the thermocouple.
Clean the thermocouple tip every time you clean the burner caps and continuous grates to prevent grease build-up from becoming a recurring issue.
When to Call a Professional
Contact a qualified technician if:
- Burner cuts out even after 15 seconds of knob-hold with a clean thermocouple
- Thermocouple tip appears bent, cracked, or visibly burned through
- Gas smell persists after multiple failed ignition attempts
Need Professional Help?
Find qualified technicians in your area for proper diagnostics and repair.
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