The heating element in the oven classified to the electric heating element that dry burns uses, the heating element surface temperature that dry burns commonly should achieve 400 degrees to just can be red. Because the initial heating is continuous heating, so the surface temperature of the heating tube will burn red. After the temperature is stable, the heating element is heated intermittently, so it will not be red, and the normal heating is still the same.
If the heating element is not red after electrification, it can be checked by the following ways:
1. You can first check whether there is a problem with wiring B, if there is a correct wiring;
2. If it is confirmed that there is no redness under normal power supply, it means the heating tube has been damaged;
3. If only part of the heating tube turns red, it means that the heating tube is not uniform, which will affect the service life. The heating tube in the oven is uniformly red when it is normally energized.
