It can be confusing that the microwave seems to be working fine, but it just doesn't heat up. To solve this problem, we first need to understand how microwave ovens work. Microwave ovens use the energy of microwaves to heat water molecules in food, thus heating food. If the microwave is working properly, but the food is not getting heated, then there could be several reasons:
1.Power failure: Whether the power plug of the microwave oven is plugged in properly, whether the power switch is turned on, and whether the power cord is damaged, etc., may cause the microwave oven to not work properly.
2.Magnetron failure: The magnetron is an important element in a microwave oven that is responsible for generating microwaves. If the magnetron is damaged or not working properly, the microwave will not heat up properly.
3.Blown fuses: The fuses in the microwave oven circuit may blow due to an overload or short circuit, causing the microwave oven to not work properly.
4.Faulty wiring: The wiring inside the microwave oven may have poor contact or open circuits, which will also cause the microwave oven to not work properly.
To solve this problem, we need to do a detailed inspection of the microwave oven. Start by checking the power plugs, switches, and power cords to make sure they are all intact. Then check if the magnetron is working properly, which can be judged by observing whether its filament lights up. If the magnetron is damaged, a new magnetron needs to be replaced. At the same time, it is necessary to check that the fuse is in good condition, and if the fuse blows, a new fuse needs to be replaced. Finally, check whether the connection line is normal, if there is poor contact or open circuit, the corresponding connection line needs to be repaired or replaced.