Hi,
The microwave blowing fuse, I was testing the switches I found the normally closed one is no good, I changed the switch.
The microwave worked perfectly at that time, now when opened the door again, the fuse blowed up again. Now I need help on what I should do and what is the problem.
Thank you.
- Guest asked 6 years ago
Hello
See wiring diagram link below. Is the fuse blowing instantly when you put a new one in ? Or does it blow after you use the microwave a few times ? If it blows instantly, you have a dead short, that could be door switches, a switch wired wrong, transformer , high voltage capacitor that you can have tested at a local appliance parts store. ( Warning ) If you are dealing with the high voltage capacitors its very important to short out the capacitor and were insulated gloves. These capacitors hold a charge even when the microwave is unplugged. If the unit works a few times and then blows a fuse, its drawing high amprege and that could be caused by the magnetron or diode. Matt Ace technician
- AV Repair Help answered 6 years ago
- last edited 6 years ago
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I changed the fuse already and it’s working pefectly, but if I open door while it’s working, the fuse blows instantly.
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I would look at the door switches or latch assembly. There are three door switches 2-Part #: 5304464099 and 1- 5304509459, I would replace all three switches.
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