The temperature accidentally exceeds the limit, but the indicator light of the handheld mini steamer does not turn off. What is the reason? Thermostats are installed on both temperature-adjustable and steam-spray irons. Once the temperature is reached, the indicator light will automatically turn off. If it does not go out by then, it is likely that the moving and static contacts of the thermostat are fused together. Qualified products should also be equipped with a thermal fuse, once the above failure occurs, it will automatically cut off the power supply to stop heating. In short, if the temperature of your electric iron is out of control, you must stop using it immediately, and send it to the maintenance department to repair and replace the thermostat and thermal fuse.
Another problem is that after the electric iron is energized, as soon as the hand touches the metal surface, there will be numbness or electric shock, which means that the electric iron is leaking. At this time, there may be the following reasons: The first is that the insulation of the iron is not good, the heating element falls off, and the metal parts of the casing are charged. The second point is that the internal connection wire or the power cord is pulled, twisted, and moved during use, causing the connection to fall off, making the metal parts of the casing electrified.
In addition, if the iron is stored in a humid environment for a long time, the insulating material will be aged and the performance will be reduced, and the hand will feel numb when used. No matter what the reason is for the leakage of electricity, it should be repaired by a professional before use.