What Does a Blown Fuse Look like?

Answer

The best way to know visually if a fuse is blown is by looking at the fuse wire inside. If it looks like it is 'disconnected', the the fuse is blown. Sometimes blown fuses have burn marks, which is an obvious indicator that the fuse is blown.
Q&A Related to "What Does a Blown Fuse Look like"
1. Unplug the appliance that caused the blown fuse. Leaving the offending appliance plugged in often results in a surge which causes the new fuse to blow as well. 2. Take a flashlight
http://www.ehow.com/how_7583843_blown-fuse.html
It sounds like there's a short inside your microwave loading down the internal power supply and blowing the fuse. Unless you are familiar with microwave theory of operation and repair
http://answers.yahoo.com/question/index?qid=201112...
No power, Not working, Not turning on, EXC.
http://wiki.answers.com/Q/What_are_the_signs_of_a_...
You need to check it with a basic Ohmmeter/VOM/DMM. Unplug. Remove fuse. Check continuity. If there is continuity across the fuse - the fuse is good. You also can use a voltmeter
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