If the entire induction cooker does not react, and there is no bomber phenomenon, even if the fuse on the top cover of the induction cooker is not burned out, you can preliminarily judge that the power management chip is broken. If the power management chip of the induction cooker is broken, if there is no 18V voltage required for the fan drive and 5V voltage required for the panel cpu, the whole machine will not work. Replace the power management chip.
If the induction cooker is opened during the maintenance process for insurance, first remove the wire of the furnace coil, reinstall the fuse, and then measure the rectifier output voltage, if there is a voltage of 310V, prove that the power tube GBT is broken, and the voltage is to replace the same specification parts. As long as the parts replacement method or induction cooker maintenance tester inspection method to find the fault point, repair, you can solve the problem.
With load maintenance, convenient inspection, but pay attention to the level of the potential, the working high potential is electric, do not touch the hand, when using a multimeter, the pen should pay attention to, do not connect the high potential voltage to the low potential components, so as to avoid the expansion of the fault, maintenance of the switching power supply part, it is best to connect the false load.