Yigao food disinfection cabinet circuit

The component with more problems in the circuit is Shu. Because the start button is used for a long time, it will be very dangerous if spermatorrhea is produced
. At that time, I heard that a crack was made in the large electronic breaker J7&, causing a heating ring. Therefore, when burnout occurs, please first check whether there is a
short circuit on the button and the electric shock circuit, and then replace the reading resistor .