Fuse blows everytime I close the microwave door.?

Question

Here's my question. Every time I close my built-in microwave the fuse blows in the electrical panel box. I can use the microwave, I can open the microwave door, but I can't close the microwave without it blowing the fuse. Does anyone have any ideas on how to fix this problem. One last thing, I believe my father started this problem when he tried to fix the microwave a months back. I wasn't living in the house at the time,but I think that's when the microwave started to act up. My father opened the microwave up and tinkered with it to get it working again. He replaced a fuse.

Answer 1

call the company the microwave is from

Answer 2

On noooooooo....dont close the door:) Have a pro check it....it's worth it before something major happens....mine just went out..........and it's a double stacked unit.........and I refuse to tell you what it cost me to fix it............but the part was 5.00 and the labor...total 285.oo but I wanted to save it for awhile yet....so do it before it takes something major like the switch or resistor out. Good luck.

Answer 3

Don't get the picture here.  How can you use the microwave if the fuse blows every time you close the door?  Doesn't the door have to be closed for the thing to operate?  If, literally, you close the door, re-set the breaker, and the unit works, there is a dead short in the wiring connected with the door light.

Answer 4

Sounds like a short in the door "interlock" (the safety switch which prevents you from turning the oven on with the door open) .  If I _had_ to fix it I'd go hunting around the switch with a volt and continuity meter...  But then of course, I would be exposing myself to high voltages and risk for very little.   Even though I have a history of such madness, a well equipped shop, and an engineering degree, I know it would not be worth my time to fix.  Microwave ovens are too cheap to work on unless it is a really high end or built-in unit.

Oh, and Sharp microwave division customer service is awesome.  They replaced a microwave WAY out of warranty for me once for free because it had a factory defect which I did not even know about!  So they will have my business forever!  I believe in advocating organizations which go beyond what is expected, hence this plug.  I don't work for Sharp, nor do I know anyone who does.

Good luck!

Answer 5

You still have a fused electrical system?...Let's be safe here and call in a pro...

Answer 6

Try moving it to another circuit in the house to see if it does the same thing there.

You'll know whether it is the microwave or a weak fuse.

Microwaves are so cheap it is not worth repairing.

Answer 7

The door has a safety switch that maybe shorting out when the door is closed. Call a service tech to fix it.