Readers ask: Why Would A Microwave Heating Element Go Out?

Can you fix a microwave that stops heating?

If your microwave oven doesn’t heat, you may have a problem with the magnetron. Access to the magnetron will require removal of the cabinet. Disconnect the power and discharge the high voltage capacitor to prevent an electrical shock. You can then locate the magnetron and disconnect the two attached wires.

What are the symptoms of a bad magnetron in a microwave?

Symptoms to Observe When a Magnetron is Failed:

  • No heating.
  • Burning smell.
  • Arcing sounds.
  • Snapping sound.

How do you know when microwave needs replacing?

6 Signs It’s Time to Replace Your Microwave

  1. Smoke, sparks, and burning smells.
  2. Food isn’t cooking properly.
  3. It makes horrible sounds as it cooks.
  4. The door doesn’t seal properly.
  5. The keypad doesn’t function.
  6. It’s over 10 years old.

Is it worth replacing magnetron in microwave?

No matter how new your microwave or if there’s only one problem, if the magnetron is out then you might as well replace the entire appliance. The magnetron is the heart of a microwave that actually makes the micro-waves. Replacing it is about equal to the cost of buying a whole new microwave, sometimes even greater.

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What is the problem if the microwave is not heating?

If your microwave isn’t heating food, it’s likely that the magnetron in your appliance is broken. Unfortunately, a burned-out magnetron can’t be repaired, it has to be replaced. Other issues that can lead to food not being heated, includes a broken diode or a faulty door switch.

Are microwaves worth repairing?

Some experts say it’s not worth repairing a malfunctioning countertop microwave because the average cost of repairs runs about $70–$100 not including parts—about half the cost of a good-quality new one.

How do I know if my magnetron is working?

Look for an open line reading to see if the magnetron works properly. Read the screen on the multimeter to find your reading. If it says “OL” or “Open Line”, then the magnetron works properly! If you register any other reading, then replace the magnetron.

What causes a magnetron to fail?

This is caused by the magnetron over heating, some instances this is because of reflected microwave energy. Solution: Replace the magnetron and check why the magnetron has overheated. Burnt or melted antenna cap. Burned Dome (or Antenna) caused by arcing due to reflected microwave energy {back feeding}.

What happens if microwave capacitor goes bad?

A defective high voltage capacitor may also be responsible for the oven’s failure to heat up. Any problem to the HV capacitor will affect the functioning of the complete high voltage circuit.

How many years does a microwave last?

The average microwave oven lasts about seven years with normal use, and even less with heavy use and poor maintenance. A large family may find themselves replacing their appliance every four to five years as they become more reliant on its use to heat up snacks and leftovers, or to defrost meals.

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Why you shouldn’t use a microwave?

Microwaves do have some downsides. For example, they may not be as effective as other cooking methods at killing bacteria and other pathogens that may lead to food poisoning. That’s because the heat tends to be lower and the cooking time much shorter. Sometimes, food heats unevenly.

Is it dangerous to replace a magnetron?

Replacing a microwave magnetron: Have a certified and experienced appliance repair technician examine and replace your magnetron. This task is much too dangerous for the average layman to perform on his own.

Is it cheaper to fix a microwave or replace it?

Microwaves are a fickle appliance when it comes to repairing. Unlike other appliances that you want to keep working for a long time through making repairs, sometimes it might be more cost effective just to replace a microwave instead of spending money or time making a repair to keep it going for a few more years.

Is it worth repairing a 10 year old microwave?

Consider getting a replacement appliance for about $100, which should work for 7 to 10 years. In general, the microwave problems worth fixing include these: Interior light malfunction. Door switch problems.

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