My microwave stopped working, so after doing some research, I decided to replace the ceramic 20 amp fuse. when I put the microwave back together, and plugged it in, everything seemed back to normal, like that fuse replacement fixed it. But as soon as I opened the door, the microwave went dead again, like it blew out the new fuse. I put in another new ceramic 20 amp fuse again, and again the fuse blew and microwave went dead after opening the door. Can anyone tell me what the problem is here? Why would opening the microwave door blow the fuse and kill the microwave? Is it fixable, or do I need to scrap it and buy a new one? Thanks in advance.