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If this is the case then the 'magnatron' (the actual microwave emitting bit) has stopped working. It could be as simple as a blown fuse, a blown rectifier diode or the magnatron unit itself. If you want to have a go yourself, wait at LEAST half an hour after turning off and disconnecting the unit before you take the cover off to check anything. BE AWARE THAT THERE ARE VERY HIGH VOLTAGES BEING GENERATED. Without electrical knowledge and equipment just check the basics
Hello Stephanie.
Get a new filter and try again.
Otherwise scrap the micro.
It the filter plate rusted through, or is it burnt?
The microwave's Magnetron-wave-guide is just behind this filter plate.
Looks like a small tube with a silvery cap with hole in center.
Very hazardous condition here.
The high energy from it is damped by the filter.
Is there food in the micro when arcing happens?
An empty micro will arc.
Michelle,
You may have killed the magnetron but you may not have either. If you can take that cover plate off, you may find that there is grease build up behind it and that needs to be cleaned off. Grease can build up there without you even realizing it and after a while it can catch fire from the heat created by the magnetron. You should never put any empty plate or container in a microwave because the magnetron needs to have something for the waves to hit. Hope this helps.
Yes, take the rack out and recycle it. I do not know why these micro-wave
company put racks in the micro wave ovens. You get some insulation on the inside
the micro flaking off next the rack.
The mega-tron tube is a very high energy transmitter. The energy will come
out of the top inside the micro wave oven in a wave guide. Micro wave energy
that generation by the tube is high frequency into Gega Hertz. You have a metal
tray in side the micro wave acts like a big capacitor it stores energy in form
of heat the next you know it look like Marconi is putting on a lighting
display.
Leave the wire tie on a loft of bread and put in you micro wave oven to
defrost. The next thing you might see is a load bread burning, instant toast.
----The use of micro wave were invented by the British before WWII. The mega
tron tube generation very high frequency radio wave and these wave struck an
object 100 miles away some of this beam energy would balance back to a
receiver-----You have Radar.... I wish you and your family well being and be
careful of micro wave ovens it can burn from inside out. GB you...stewbison
Micro wave as the name suggests produces heat when the micro waves aimed at an object causes the water molecules inside the object to vibrate hence producing heat.The gadget responsible is the magnetron. If your magnetron is not receiving ht voltage or receiving but faulty, then your micro wave wont work please take precaution when opening micro wave due to high voltage caps that remain charged sometimes even when it is off.check the high voltage fuse/ diode and capacitor if they are fine and the step up trans former o.k then the only option is to replace the magnetron
unplug it... and wait 10 seconds...
or try a keypad sequence... like holding the clear button while cycliing the power...
I would start that way first...
YOU SHOULD NOT RUN MICRO WITHOUT ANY THING IN IT / THIS WILL OVER LOAD THE MAG TUBE . AND SOME TIMES FRY IT .. The sparking and arcing is probably a bad wave guide . this is sometimes caused by food splater / it gets in the cracks and corners and then cooks till it truns to carbon which conduts the micro's and thus arching .. clean it good and touch up any burns in the metal and repl wave guide cover. mm hope this will help .. mm
Q - The microwave display counts down and the inside light is on, but nothing is heating and the fan is not running. A - This most commonly is abad door switch, other possible problems are a faulty relay or solder joint on the power module, but a bad door switch is most common. Q - My microwave is running and sounds like it is working but will not heat up anything. A - Many thing can do this but, common things are....loose high voltage wire.....poor solder joint on board.....magnetron.....power relay..... Q - The microwave makes a loud "hum or buzz" noise but will not heat up the food? A - 9 times out of 10 this is usually this is a bad magnetron, the other time is sometimes a bad high voltage diode. See components section.
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