Microwave sparks inside - what to do: 4 possible causes and remedies

Smoke and sparks inside a microwave indicate malfunction.

It is very difficult to imagine a normal day without a microwave oven. This device is a real lifesaver. But finding the spark in the microwave when you turn on, I panicked. I decided to find out how serious the problem is and how to avoid it. And that's what I found out.

Probable causes 4

Why is it sparkles and pops in the microwave? Main reasons:

1. Violating the integrity of the coating enamelled. The enamel is gradually degraded from a regular cleaning.

Destroyed enamel may cause sparks.

1. Metal decoration on the dishes. If the plates sent to the microwave oven, there is a metal casing, avoid sparks almost impossible.

For cooking it is recommended to use a special bakeware.

1. The use of all-metal dishes. Due to the design features, to put a bowl on the warm-up is disabled (if there are no exceptions, specified by the manufacturer).
2. Burnt diffuser plate.

The photo - a diffuser plate or mica

Microwave fires and sparks on each of the above reasons, but the most common is always burn-mica.

Why burns mica?

During his tenure in the microwave oven on the walls and detail begins to accumulate fat. Getting on a mica plate, fat starts to gradually burn through and due to this overheating (sometimes completely burns) metal. If you continue to use the oven, you can burn the cap and the antenna of the magnetron.

Magnetron - the most expensive item in a microwave oven.

Magnetron - special device which generates high-frequency electromagnetic waves, a length of 12 cm. A special internal chamber design allows water molecules to resonate at a specific frequency and heat food.

It is very important that the inside had no mechanical damage. Otherwise, the radiation can escape to the outside, and irradiate the surrounding objects.

So why sparks microwave? When working in the furnace there is a very large load on the electrical circuit the circuit, so may eventually come to some details of the fault. Very often burns the waveguide cover (example pictured below).

waveguide chamber is closed rectangular lid of the dielectric.

The waveguide in a microwave - a special recess within which is the antenna of the magnetron. waveguide cap often made of a material that does not transmit electricity, but transmits electromagnetic waves (insulator) - mica and plastic.

When this plate is adhered dirt and grease, it begins to burn through, so the microwave oven when the sparks from the waveguide. It looks as if the inside is lit and shines some cardboard.

eliminate sparks

Eliminate the appearance of sparks can own, without recourse to the experts:

Picture	instruction
	Step 1 Turn off the oven from the mains socket and, if necessary, allow it to cool. With the included tool to make such manipulation is prohibited.
	step 2 Wash the inside of the chamber without the use of coarse abrasives.
	step 3 Carefully remove the diffuser. Often the lid is attached to either plastic plugs or a few screws.
	step 4 Remove the magnetron, observing the following rules: double-check that the power supply is turned off; temporarily short the capacitor; temporarily short the magnetron.
	step 5 Check the magnetron on serviceability: If bankrupt cap magnetron, replace it with a new one (sold in art stores); If the cap does not - it is necessary to replace the entire device (magnetrons price is very high, it sometimes makes sense to buy a new device). If the cap is all right - put the mechanism in place.
	step 6 Change the plate of mica: Complete replacement (cut from a sheet of mica new workpiece by using the sample burned); Repair (if the plate only partially burned, it can expand and attach to deepen the whole portions).

Promptly rescue situation can be detected if damage to the enamel within the furnace. To do this, the remnants of the old paint must be removed and put a special shop means.

Look for funds labeled "Enamel for household appliances" on the package.

To restore the enamel in a microwave oven can not use ordinary household paint.

Precautionary measures

Avoid sparks emanating from the microwave, you can. To do this, I recommend:

• Cap. When cooking and heating food (particularly fat) use caps and lids.

The hood will maintain the microwave oven walls clean.

• Metal foil and. Do not use pans with foil and metal edging (all-metal plates in the singular).
• Pause in work. If the microwave oven will work more than 75 minutes without stopping, there is a risk of overheating of internal parts. So try to take breaks to cool down.
• purification. Regularly clean the oven and check for possible malfunctions.

Regular cleaning of surfaces in the oven will prevent the appliance from the sparks.

findings

If the spark microwave - you need to correct the situation immediately. Most often, it is sufficient to wash thoroughly, and it is sometimes necessary to replace some parts. How to act, I told you. A video in this article shows you how to self-test the oven. If you have any questions - happy to answer in the comments.