One of the main indicators that your microwave has to be repaired or replaced is if it starts to create horrible sounds when cooking. There microwave should be relatively quiet. As soon as the sound grows louder, stop using the microwave. You don’t want to worsen its condition.

Check the turntable and fan blades. There could be leftovers that got stuck. They might have caused the rattling noises. However, it could also be something bigger. Either way, it is best if you just ask someone for help. You can easily fix this problem. Just stop using the microwave for a while up until you have asked for professional help.

There could be some parts that need replacement. The fan blades might have been broken. However, if you have been using the microwave for a long time, you might be asked to consider replacement. With professional advice, making this decision would be easier.