The principle of microwave heating is to use the electromagnetic waves of microwaves to heat food. The microwave oven has a magnetron inside it, which produces microwaves. When microwaves encounter food, they are absorbed by the water molecules in the food. Water molecules, after absorbing microwave energy, vibrate rapidly, producing heat, which heats up the food.
The microwave oven does not heat up due to the following reasons:
1.Magnetron failure: The magnetron is a key component of the microwave oven to generate microwaves, and if the magnetron is damaged or its performance is reduced, it will cause the microwave oven to heat poorly.
2.Door switch problem: The door of the microwave oven has a safety switch, if the door is not closed properly or the door switch is damaged, the microwave oven will not work properly.
3.High voltage transformer failure: The high voltage transformer supplies high voltage power to the magnetron, and if the high voltage transformer is damaged, the magnetron cannot produce microwaves.
4.Fuse blow: The microwave oven has a fuse inside it, and if the fuse blows, the microwave oven will not work.
5.Microwave oven power setting too low: When using a microwave oven, if the power setting is too low, it will cause the food to heat up more slowly.
6.Too much or too little food: Too much food can hinder the spread of microwaves, resulting in uneven heating; Too little food may cause the microwave oven to overheat the food in a short period of time.
7.Container problems: Using an unsuitable container (such as a metal container) or the container is too thick can affect the penetration of microwaves, resulting in poor heating results.
8.Poor microwave door sealing: Poor microwave door sealing can lead to microwave leakage, which can affect the heating effect.
In addition to the microwave oven not heating up, there may be some other problems.
1.Microwave oven won't start: It may be caused by a door that doesn't close properly, a broken door switch, or a loose power plug.
2.Microwave ovens make strange noises when they work: it could be that the magnetron, high-voltage transformer, or other components are malfunctioning and need to be checked by a professional.
3.The microwave door won't open: It could be that the door lock mechanism is stuck or there is a problem with the door hinge.
4.There is a problem with the internal control panel of the microwave oven: such as abnormal time display, button failure, etc., it may be a problem with the internal control circuit.
5.Uneven microwave heating: This can be a problem with the placement of food, the material of the container, or the microwave oven itself.
6.Microwave oven odor: It may be caused by overheating the internal parts of the microwave oven, burning containers, or burning food.
7.Microwave oven leakage: It may be leakage of high-voltage capacitors, transformers and other components, which need to be checked and repaired by professionals.
For these problems, ordinary people can't do it. Therefore, if there is a problem with the microwave oven, it is recommended to seek a professional for repair in time. When using the microwave oven, it is also necessary to pay attention to the correct use method to avoid failure due to improper operation.