The lifespan of a microwave transformer can vary depending on various factors, including the quality of the transformer, frequency of use, and operating conditions. Generally, microwave transformers are designed to be durable and last for a long time without needing replacement. With proper usage and maintenance, a microwave transformer can last for many years.
However, if a malfunction or electrical fault occurs in the transformer, it may need to be replaced. Signs of a faulty transformer can include a microwave oven that does not heat food properly or exhibits other electrical issues. If you suspect a problem with your microwave transformer, it is recommended to consult a professional technician or contact the manufacturer for guidance on repair or replacement.
It's important to note that working with high-voltage components, such as microwave transformers, can be dangerous and should only be performed by qualified individuals with proper knowledge and experience in electrical repairs.