If the air inlet of the device has a flash and suspected explosion sounds, please refer to the following troubleshooting steps:
1. The temperature controller jumped off, and the heating wire stopped working. The machine starts blowing cold air and then heats up again to work after the machine cools down;
2. The tiny light generated when the temperature controller is triggered to close and the click sound when the temperature controller is disconnected are all normal phenomena;
3. The air inlet is blocked with dust;
4. The fan blades lead to stalling or speed reduction, thus triggering the temperature controller. So you can apply for the after-sales for inspection.