INTERIOR LIGHT THE LIGHT INSIDE DOES NOT WORK

Does this model have an incandescent bulb, or a fluorescent ballast?

It sounds to me that your door switches aren't working.Your oven is protected by a couple of switches that engage when you open or close the door.They control a couple of safety features and also your interior light.One of them seems defective.

Check circuit breaker on house board.

Your description is a little vague. I am assuming that you are saying that the inside of the unit has black scorching marks near the area that the interior light bulb is housed. If that is the case then the coating on the inside of the microware is compromised. This is usually caused from food particles getting stuck the inside or it has become scratched. When this happens, the microwave will continue to spark in that area, This will result in further black marks and it will cause the entire unit to fail at its most expensive part, sooner. You can take care of this issue by cleaning the interior very well and then paint the inside again with microwave oven paint. It has to be special paint.

Inside there's a little door switch there's 3 of them they have to be in sequence You can adjust them with a screwdriver phillips

In this case, you have to check the control panel. There might be wire connections and contacts that loosens. The bulbs inside the oven is connected to a switch that that only functions once the oven is in closed position.

The flash is usually caused by metal either being placed inside of micro or the interior surface might have chipped enamel exposing the metal underneath. Make sure no metal materials are placed inside while using and that the interior surface is in good condition.

how do I change the little light bulb on the top to take off the cover what do i need.

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