1. The specific reason may be that the circuit board is damp. You can turn the induction cooker around and blow it with a hair dryer, or take it to the sun to get some ventilation.
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2, check the switching power supply circuit, according to the problem check as follows:
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①, first measure whether the 300V voltage after rectification and filtering is normal.
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(2) Measure whether the 18V and 15 V voltage of the induction cooker is normal.
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(3) If the above measurements are abnormal, it is important to check whether the rectifier and filter circuit components and the pin to ground voltage of the stabilized vibration and thickness mold chip are normal, if there is an anomaly, check the components around the abnormal foot of the chip.