Appliance Repair Questions? Ask a Technician for Answers ASAP
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most likely the magnetron is bad in this. this is around $163.00 plus it would need to be installed by a tech, this is on the high voltage side of the microwave and even with the machine unplugged these can hold a lethal dose of voltage in the capacitor.. its recommended this be done by a tech. A new microwave is around $299.00 so you may want to consider a new one, thanks Bryan