Bertazzoni Cooktops F3E Error: Coil temp sensor failure
What Does F3E Mean on a Bertazzoni Induction Cooktop? F3E is a coil temperature sensor fault on Bertazzoni induction cooktops. Each induction coil in the Vetroceramic glass surface has a dedicated NTC thermistor bonded directly to the coil winding to monitor heat at the source. When that sensor fails — going open-circuit, shorting, or drifting […]
Quick Assessment
Answer to continue safely
Is it safe to keep using?
Maybe. Other zones not displaying F3E remain safe to use. The zone showing F3E must not be used until a technician has replaced the coil temperature sensor.
Can I reset the code?
No. F3E indicates a hardware sensor failure. A power cycle may temporarily clear the display but the fault will return. Physical sensor replacement is required.
When to stop immediately?
Stop if you notice: F3E appears on multiple zones simultaneously, Burning smell from beneath the cooktop near the affected zone.
Symptoms You May Notice
A single induction zone stops heating and will not restart even after extended cooling and a power cycle
Unlike a simple overtemperature shutdown that clears after the glass cools, F3E is a sensor hardware fault. The zone remains locked out regardless of how long the cooktop is left off.
Affected zone starts briefly at full power then shuts down immediately, displaying F3E
The control board attempts one brief self-test on power-up and immediately detects the sensor reading an impossible value, shutting the zone down before any cooking load is applied.
Possible Causes
NTC thermistor on the induction coil has failed
Each coil assembly has an NTC thermistor bonded directly to the winding. If this sensor drifts to an out-of-range resistance or goes open-circuit, the control board disables the zone until the sensor is replaced.
Requires ProfessionalCoil assembly damaged by overheating from dry-running or boil-over
Prolonged dry-running or a heavily boiled-over liquid incident can physically destroy the thermistor bonded to the coil winding, requiring replacement of the complete coil and sensor assembly.
Requires ProfessionalSafe Checks You Can Do
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1
Power cycle and allow full cooling
Turn off the circuit breaker for 10 minutes. If F3E returns immediately when power is restored — with no cooking attempted — the sensor is faulty and the unit requires service.
F3E is zone-specific. If only one zone shows F3E and others work normally, the fault is isolated to that zone's coil assembly and the cooktop is otherwise usable.
When to Call a Professional
Contact a qualified technician if:
- NTC sensor on the affected coil measures open circuit or very high resistance at room temperature
- Coil assembly shows visible heat damage or discolouration on inspection
- Thermistor resistance does not change when a heat source is applied near the sensor
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