Question about Sharp R-320H Microwave Oven
My microwave burns fuse every second when turned on
Where is the fuse on a Jen Aire jmc7000
Posted on Nov 25, 2007
There is no power coming in to the microwave (yes, it is plugged in)
Posted on Apr 04, 2007
Replace the fuse, when I find out where the fuse is.
Posted on Mar 30, 2007
If it blows the fuse as soon as you hit the START button, it's almost certainly a shorted high-voltage capacitor. If it blows a few seconds after you hit the START button, it's probably the high-voltage transformer. You'll possibly also smell a faint electrical burning smell from the rear vent after you shut if off. If it blows the fuse as soon as it's plugged in, you probably have a shorted door switch, a shorted varistor, or an internally exposed wire shorting to the chassis, etc.
Posted on Sep 15, 2006
WARNING: Microwave ovens are the most dangerous consumer appliance to service due to up to 5,000 V at high current inside. Even with the power off, there is a HV capacitor that can produce a lethal kick. This capacitor must be discharged before touching anything in the microwave generator circuitry. DON'T remove the cover yourself unless you fully undertand the SAFETY issues involved in working inside a microwave oven. A microwave oven is possibly THE MOST DANGEROUS common consumer product to service. About the only "easy" fix would be a blown fuse, if it keeps blowing, don't go any further unless you know what you are doing. Your likely options are a blown high voltage cap, diode, or the magnetron. Good luck(but luck has nothing to do with it ;] )
Posted on Apr 02, 2006
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