Why does my device continue to switch on and off in sequence?

This is a common phenomenon when the power supply reaches an extremely high temperature; this continuous cycle is not a normal condition. The transformer is equipped with a thermal protection function which switches off the appliance in the event of excessively high temperatures. When the device returns to normal operating temperature, the protection function allows the transformer to power the device again. The cycle is indicative of the fact that the power supply repeatedly reaches an extremely high temperature. You will need to check the wiring connections and the device. Avoid using the product in these conditions for prolonged periods.