If your GE Monogram microwave doesn’t heat it usually makes a weird noise. Before calling a Pro, read this short guidance with a similar case. As a rule, such an issue happens when the magnetron burns out. The magnetron is a critical feature of the microwave heating function. Unfortunately, if the magnetron has burnt out, it can mean an expensive repair. If the magnetron is not drawing energy, it also means the high voltage capacitor could remain charged for a long time, which makes the microwave especially dangerous. The high voltage transformer will also need a diagnostic. Microwave ovens produce a very high voltage in order to power the magnetron antenna, which emits the energy that cooks the food. When a high voltage transformer fails, it will usually arc and have a burning smell. The microwave oven can store a lethal amount of electricity in its high voltage capacitor, even after the microwave oven has been unplugged. Due to the high running voltage and the potential for electric shock, it is extremely dangerous to replace the electronic components in a microwave. Only a licensed technician should replace the high voltage transformer. Some problems are possible to fix only with the right tools and skills, so to keep the warranty valid and unit functional, it is at your best interest to contact a professional technician.
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