Microwave Sparking? 5 Common Causes – Ocean Appliance

A trip microwave will alarm most people, but there ’ s no need to throw out the microwave, as it can be fixed. A microwave uses a senior high school level of electricity, which makes microwaves susceptible to sparking issues. Sparking microwaves are normally the leave of metallic fragments in the microwave or a trouble with the waveguide cover. Both these problems are well fixed .
The next most common cause for a microwave trip is a defective diode. While it is possible to fix this exit yourself, it is recommended that a aim microwave technician repairs your microwave. A microwave is a high-current, high-octane device that requires extreme caution to be taken when repairing .
The microwave ’ randomness capacitor can store a deadly measure of electricity, even after the microwave has been disconnected from the power for several months. Before repairing electric components of a microwave, such as the diode or magnetron, the capacitor must be discharged .

1. Worn Microwave Racks

If your microwave has a microwave rack, it may be causing the microwave to spark. Microwave racks contain metallic element that is covered in protective plastic to prevent spark. If you have been using the same rack for a long time, the protective plastic report may have chipped or worn off.

  • Inspect your microwave rack for exposed metal.
  • Replace your microwave rack.

2. Dirty or Damaged Waveguide Cover

Microwave sparking due to the waveguide cover is common among microwaves that get a distribute of function. The waveguide cover in most microwaves is normally a humble square gore you can see on one wall inside your microwave. The waveguide is responsible for transferring power from the magnetron, distributing the department of energy to cook your food .
If the microwave hasn ’ metric ton been cleaned, food particles and grease on the waveguide can cause sparking in your microwave. The trip is caused by the magnetron burning the food fragments stuck to the waveguide. The waveguide top can besides get damaged by frequent trip. If the microwave is not heating your food by rights, it can indicate that the waveguide empanel is damaged. If the waveguide itself is damaged, it can not be repaired, and you will most likely need to get a new microwave .

  1. Clean the waveguide cover. Make sure to keep the waveguide cover clean.
  2. Examine the waveguide panel for any damage.
  3. To replace the waveguide cover, make sure the microwave is disconnected from the power.
  4. Unscrew the waveguide cover.
  5. Clean the area.
  6. Screw in a new waveguide cover.

3. Faulty Diode

A microwave diode is responsible for eminent voltage that is used to exponent the magnetron that cooks the food. If your microwave is sparking and failing to properly heat your food, a faulty diode may be creditworthy. A burn olfactory property besides indicates a defective diode. A diode can short, wear out, and split in two. The diode is located inside the cabinet, adjacent to the magnetron .

  1. Disconnect the microwave from the power source.
  2. Unscrew the microwave access panel, usually at the top or back of the microwave.
  3. Discharge the capacitor. Remember, the capacitor can contain a lethal amount of electricity, even while not connected to the power, so proceed with caution.
  4. Use a multimeter to test the diode for continuity.
  5. Hold the black lead against one end of the diode; touch the opposite end of the diode to the negative terminal on a 9-volt battery. Touch the red lead to the positive terminal on the battery.
  6. A diode should only have continuity in one direction. If the multimeter shows no continuity, try reversing the diode so that the black lead is in contact with the opposite end of the diode. Touch the other end to the diode to the battery.
  7. If there is negative continuity in both directions or there is continuity in both directions when the leads are reversed, the diode is faulty and should be replaced.

4. Metal in the Microwave

It is common cognition not to put tinfoil or alloy in the microwave, as this will cause it to spark and can damage the microwave. Has person not familiar with this govern been using it ? Is the trip because of a crockery item with metallic element spare ? Has a steel wool scrubber been used to clean it ? This should be avoided because it might have left some shards that are causing your microwave to spark .
Before moving on to more complex causes for a trip microwave, give the microwave a clean to make sure there aren ’ deoxythymidine monophosphate any metallic element fragments in there that are causing the problem .

5. Failing Magnetron

A problem with the microwave ’ sulfur magnetron is less likely to be causing sparking issues ; however, as magnetrons wear out, they may cause your microwave to spark. The magnetron is responsible for creating the microwave frequencies that heat the food .
food that is not cooking by rights and an increase in the typical hum a microwave makes when cooking indicate that the magnetron is failing. Depending on the model, sparks from the magnetron can sometimes be seen inside the microwave.

Make sure to exercise caution when checking the magnetron .

  1. Disconnect the microwave from the power source.
  2. Remove the top microwave cover to access the magnetron.
  3. Discharge the capacitor. Remember, it can contain lethal amounts of electricity even when power is disconnected.
  4. Unscrew the magnetron and remove it for easier access.
  5. Use a multimeter to test the magnetron.
  6. Set the multimeter to the ohms setting.
  7. Touch the red multimeter lead to one of the magnetron’s connectors. Touch the black multimeter lead to the other magnetron connector.
  8. If it reads below 1 ohm, then the magnetron electric filament is functioning correctly.
  9. Set the multimeter to the highest resistance testing setting.
  10. Place one of the leads against the magnetron’s metal casing.
  11. Put the other lead on one of the magnetron’s connectors.
  12. A properly functioning magnetron should read “OL” or “Open Line” on the multimeter.
  13. If the magnetron is defective, purchase a new magnetron to replace it.

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