Cooking-equipment complaints can look similar while involving different energy sources and safety risks. These cases preserve the observed sequence before any conclusion.
Record the exact mode, setpoint, code, burner or element involved, ignition sequence and whether the failure affects one function or the entire appliance. Include any recent service and whether behavior changed immediately afterward.
The same symptom can have a different cause. A no-heat complaint may involve supply, controls, sensing, ignition or a heating component depending on the machine.
Stop using the appliance after a gas odor, uncontrolled sparking, smoke, arcing, a hot electrical smell or a repeated breaker trip. Ventilate and follow local emergency guidance for suspected gas leakage; do not keep cycling the appliance to reproduce the fault.