If the noise your microwave is making sounds like the magnetron except louder, it suggests that a faulty magnetron (or diode – see below) is to blame. A faulty magnetron can also cause an annoying high-pitched sound, which indicates that the magnetron tube is failing due to age and heavy usage.

Why is my microwave making a weird sound?

Microwave Magnetron Noise





Magnetron is part of the high voltage circuit and provides the micro waves that generate heat. If the magnetron is defective, it may cause a loud buzzing noise, which indicates that the magnetron is nearing the end of its life or might be defective.

What are the signs that a microwave is going bad?

6 Signs It’s Time to Replace Your Microwave

  • Smoke, sparks, and burning smells. These are signs of a serious and urgent problem. …
  • Food isn’t cooking properly. …
  • It makes horrible sounds as it cooks. …
  • The door doesn’t seal properly. …
  • The keypad doesn’t function. …
  • It’s over 10 years old.

How much does it cost to replace a magnetron in a microwave?

$100 to $200





Microwave Magnetron Replacement Cost
Replacing a microwave magnetron costs $100 to $200. This includes a part price of $50 to $100 and $50 to $100 for labor. A magnetron is the primary component that produces heat for the appliance.

How do I fix my microwave from humming?

If you notice a humming noise while the microwave does not function, turn the fan off by pressing the specific button on the microwave. A fan button usually is indicated with a picture of a fan or it may say “High/Low/Off.”

Why does my microwave sound like a whale?

A growling or high-pitched sound coming from your appliance when its cooking is a good indication the magnetron tube is failing. The magnetron in your microwave is responsible for creating the frequency that cooks your food. In good condition, this device operates silently.

What causes electrical humming noise?

The reason power lines themselves might hum is due to a different phenomenon called corona discharge. This hum, or discharge of energy, happens when the electrical field around the power lines is greater than what is needed to start a flow of electric current from the power line to the surrounding air.

How do you get rid of electrical hum?



Process of Elimination

Switch off all electrical appliances and devices in your home and then go to your electrical panel. Switch off the circuit breaker. If the noise doesn’t stop, you know it isn’t coming from your electrical system. If it does stop, start switching breakers back on one at a time.

How do you get rid of electrical noise?

4 Critical Tips For Eliminating Electrical Noise

  1. Shielded Cable. Using shielded cable may seem like a no-brainer. …
  2. Cable Routing. Routing the cable properly is very important. …
  3. Proper Grounding. Your sensors should be connected to a good ground. …
  4. A Note About Sensor Outputs.


What is this humming noise in my house?

Some possible causes of that humming noise coming from the walls of your home could be: Incorrect electrical wiring. Poor connections inside an electrical outlet. Switch connections gone bad.

Can electrical wiring make noise?

This sound is electricity itself, but the sound of alternating current moving through wires or appliances. Alternative current (AC) causes fluctuations in magnetic fields, and this causes vibrations. Most of the time, this isn’t harmful, and only the higher voltage appliances will create an audible sound.

Can electrical outlets make noise?

While an outlet making noise is common, it’s not an issue to be ignored. An electrical outlet buzzing could create a dangerous situation if left unrepaired.

Why do I hear a rumbling noise in my house?



Excessive sediment accumulation may produce a popping or rumbling sound, which should be your signal to call in a repair professional. Depending on the severity of the situation, flushing the inside of the tank might be enough to fix the problem, but it could also be time for a new heater.

Why do I hear noises at night?

Summary. Hearing voices at night is not uncommon. While it can be a sign of a mental health condition such as schizophrenia, it is also seen when sleep is disrupted, after stress or trauma, or with certain medications or medical conditions.

Why do I hear banging in my walls at night?

Do you hear strange LOUD popping sounds in the night? Don’t worry it most likely is just a Frost Quake. Your house will not fall down. A Frost Quake happens when moisture suddenly freezes and then expands.