If heating fatty substances (melting butter for example), as the product on the turntable gets near the area where I assume the MW waves come out (a square in the center of right side vertical panel inside, covered with a removable panel of some strange material) a brilliant flashing and the sound of heavy electrical arcing (1 to 2 sec., off and on) takes place until the product rotates out of proximity to the panel. I removed the panel and cleaned it pretty good and for a while things were fine. Now it is doing it again and freaking out my wife. She wants a new MW, I want to easily fix it. By replacing that panel with a new one will the problem go away? I had read that food built up on the surface can cause this and cleaning it seemed to help the first time. Ever heard of this?
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Waveguide coverSparking and
arcing in a microwave can be caused by a damaged waveguide cover. Try
removing the waveguide cover to see if the problem persists. Once
removed, the waveguide cover can be inspected for burns, which will
indicate if this is the issue. If the waveguide cover is burnt or will
not stay in the proper spot it will need to be replaced.
sparking or arcing in your microwave is near a rack support, any exposed
metallic area can be covered with a microwave cavity support. It is
also recommended to replace the rack supports in this situation to
ensure the issue is resolved.
Cavity paintIf sparking
or arcing in the microwave is visible on the side walls, the paint
covering the metallic areas could have worn off or chipped. This can
possibly cause pitting in the side walls or ceiling. If this is the
case, it can be repaired with microwave cavity pain
There are two possible reasons for this to occur. 1.there was dirt on the turntable and that carbonized and got so hot that it melted the tray. That heat would've melted the plastic spider as well. 2.the microwave oven was turned on with nothing. or almost nothing, in it: the glass turntable is what is known as "a matching load". That means it is there as a safety precaution, protecting the magnetron, in case there's nothing in the microwave oven when it is energized. As such, the glass turntable can get hot enough to melt. That, in turn, will melt the plastic spider. If either of those is the case, it is OK to buy a new spider & turntable.
Normally, microwave travels around round surfaces (Look at the B-1 for example) If you put flat metal in a microwave, you will create sparks ... lots of em. Is it possible you have something going on with one of the wheels ... like a piece of tin foil?
At a minimum, I think id be inspecting everything inside very carefully and then give it a good cleaning.
You might want a pro in your area tale a look at this as well.
sounds like there is a switch that is bad. you can go buy a new MW for about 200$ and in yours if there is a major problem then i would just go buy a new one but might be worth a repair man to come check it out
pleas do not poke around in the microwave as it carries a charge of 5000volts and can kill you even if not plugged in DON'T TOUCH THE WIRES WITH BRAIDS ON THE OUT SIDE if you must get inside of the unit
The solution is very simple. Unplug the microwave first. Remove the round dish. Remove the circular riing with the rollers and set aside with the dish. Carefully with a butter knife, pry up the coupler and set aside. Examine to make sure it isn't broken or cracked where it slips over the motor shaft. Remove 5 Phillip head screws from the bottom pan and it hinges down out of the way exposing the motor. Remove 2 screws holding the motor, slip off the plastic dual flat connector and slip back onto a new motor $52.25 + shipping from GE parts. Remember your actual MW Model number is NOT XL-1800 but it is on a metal tag inside the MW on the left side. Put the motor screw in as removed so the shaft is free to stick up the hole in the bottom of the MW. Put the pan screws back up, put the coupler on, the ring in and then the dish and line the slots of the dish up with the star coupler so it catches. Turn on MW, touch the turntable button and make sure it is "ON" and not "OFF" and it should be, with the door shut, turning like a quiet little top as new.