Customer Questions and Answers for Microwave Magnetron by Ge

Hello, I would first check the door switches. There are three of them. A door monitor switch, a primary switch, and a secondary switch. If the switches are in the wrong state, the fuse will blow. By the wrong state I'm referring to whether they are open or closed. Two closed at the same time that aren't supposed to be shoots the fuse. There should be a tech sheet in the unit so you can differentiate the switch configurations to see if they are the problem. If the door switches are the issue, replace all three at one time to avoid repeat door switch failure. If the issue isn't the door switches, you do need to be careful about digging a money pit. You should shop for prices of new units before dedicating to an expensive repair. If the magnetron and the high voltage transformer both need replaced, the resulting bill for the parts only will add up to the price of a new unit.