1. Open the induction cooker to check whether the power tube is broken down. General power tube breakdown will burn the fuse (fuse) resulting in smoke.
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2. Check whether the pin of the rectifier bridge stack has the phenomenon of opening welding, if there is poor opening welding contact, it will produce smoke.
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3. Check whether the 5 volt voltage 7805 of the voltage regulator diode is damaged, and the multimeter detects that the voltage regulator diode is normally 5 volts. If there is damage, it will also produce smoke.
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4. Focus on checking whether the 300 volt filter capacitor has leakage and open circuit phenomenon. Because when the filter capacitor is damaged, it will produce overcurrent burnout. The filter capacitor generates smoke.
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5. Check whether the electric fan rotates normally. If the electric fan motor coil is short circuit, it will also cause overcurrent burning and smoke.
The quality of this induction cooker is not very good, the machine in the middle of the wire tray is a diode that measures the temperature of the bottom of the pot, and the white liquid is thermal conductive silicone grease. The induction cooker smells of burning and smoking which should indicate that other components are damaged, possibly capacitors. First of all, it is clear whether the stove is smoking or the bottom of the pot is smoking, the stove smoke burnt taste first check whether the ventilation is normal, the small fan is turned, if the ventilation and heat dissipation is normal, the stove inside the smoke burnt taste, should be taken to repair.