How To Silence A Microwave: 4 Solutions

Whilst microwaves are a necessity in most households, they can be a pain as they can be quite noisy sometimes.

Not only do microwaves beep when their timer is complete and make a noisy buzz whilst in use, but they can also make other irritating noises at times.

Whether you are wanting to use your microwave late at night and not have to disturb the rest of your household or it is just excessively noisy in general, here are a few ways to quieten your kitchen by reducing the amount of noise your microwave makes:

1. Use The Mute Button

The first step to reducing the amount of noise your microwave makes is by silencing the annoying beeping noises it makes.

Most modern microwaves have a setting or a button, which most of us have no idea even exists, that will mute the beeping noises!

Even though no two microwaves are exactly the same, to find this beautiful button is simple. In most cases, there is a sound button hidden in plain sight.

Or the muting function may be hidden as a secondary function linked to another button.

some microwaves have a mute button

Typically, the keys that hold hidden secondary functions are 1, 0, Cancel, or Stop.

To activate the secondary function, if there is one, press and hold one of these buttons for a few seconds.

Often one of these buttons is bound to the child lock function.

This function can be turned off again by pressing and holding the same button again.

If none of these keys work to mute the beeping, it is best that you consult your instruction manual.

If you are not in possession of your microwave’s instruction manual still, you can try checking the website of the manufacturer.

If all else fails, try your luck by doing a Google search using your microwave’s brand and model number as well as the word ‘manual’.

If after all this you still cannot find a mute function on your microwave, it is likely that it does not have one and unfortunately you will just have to live with the beeping.

2. Make Sure The Microwave’s Sensors Are Clean

Sometimes your microwave may sense something inside of it and beep incessantly.

This can be extremely annoying, especially if you do not know why it is beeping, let alone how to stop it.

Luckily, there is a simple solution to this problem.

check that microwave sensors are clean

If your microwave’s sensors are dirty, it may be sensing the dirt and taking it as something that is still inside your microwave.

To stop this from occurring, all you need to do is to clean the sensors in your microwave.

The best way to clean your microwave is by steam cleaning it. To do this, all you need to do is:

  1. Place a bowl with four tablespoons of vinegar and two cups of water into your microwave.
  2. Add a toothpick to the bowl to prevent it from bubbling over.
  3. Microwave the bowl for five minutes and then let it sit for a further three minutes. After this, simply wipe the inside of your microwave down with a sponge.

3. Unplug The Microwave and Plug It Back In

If cleaning your microwave does not work and the beeping continues, the next thing to do is to give it a hard reset.

Hard resetting your microwave will reset the sensors and put them back to their original state.

unplug your microwave to reset it

To give your microwave a hard reset is as simple as unplugging it from its power source.

Once you have unplugged your microwave, wait two to three minutes before you plug it back in again.

After this, you will have to reset your microwave’s clock to the correct time. Once this is done, your microwave should be as good as new again.

4. Buy A New Microwave

If you have an older model microwave and none of these tips help to silence it, you may want to consider upgrading it by purchasing a new model microwave.

This should be your last resort as these appliances are not always the cheapest.

If purchasing a new microwave is the way you want to go, there are important factors to consider.

The first feature you should ensure your new microwave has is an easily mutable function, as this is the main purpose for the purchase. After this, consider what other features you want out of your new microwave and ensure that the one you choose has these features.

Do not choose the first microwave you see, do some research on the brand and model, and ask as many questions as you can so that you can make an informed decision.

Sometimes there may be other reasons for your microwave making an excessive amount of noise.

These reasons mainly include actual faults with your microwave that require more attention than just holding a few buttons down or unplugging it from its power source. Below are a few reasons why your microwave could be making a lot of noise.

Other Reasons For Microwave Noise

Most of these issues can be remedied by those who are handy and enjoy a do-it-yourself task.

For others who are not interested in muddling with an appliance they have no mechanical knowledge about, it may be best to contact a microwave technician.

how to silence a microwave

Remember – if your microwave is making an excessive noise due to a fault, check to see if the warranty is still valid.

If you believe the fault is covered by the terms of the warranty it is best to take advantage of this and speak to the manufacturer.

Faulty Turntable Motor

A common fault to occur with microwaves is with their turntable motor. If your microwave’s turntable motor is faulty it is most likely to make a grinding or clicking type of sound.

Diagnosing and fixing a faulty turntable motor can be done as follows:

  1. Unplug your microwave from its power source so that it is not electrically charged.
  2. Remove the support roller as well as the turntable plate from the microwave.
  3. Unscrew the panel of the turntable of the motor.
  4. Using a multimeter, test the turntable motor for continuity. If the turntable motor does not have continuity, you will need to replace it.

Faulty Diode

Another common part to malfunction or go faulty in a microwave is its diode.

The diode in a microwave is a key part of the high-voltage circuit.

This part, when faulty, can typically be determined by a loud humming noise.

The following can be done to diagnose a faulty diode and fix it:

  1. Unplug your microwave so that it is not electrically charged.
  2. Take off the top cover of the microwave to get to the diode.
  3. Discharge the capacitor.
  4. Using a multimeter, test for resistance from the diode. A healthy diode, depending on what kind of model it is, will read between 50 000 and 200 000 ohms.
  5. In the opposite direction, check for continuity. This can be done by reversing the leads of the meter. Continuity should only be present in one direction.
  6. If the diode in your microwave is defective, you will need to replace it.
  7. Ensure caution is exercised when attempting to access the diode.

Faulty Magnetron

Another key part of a microwave that is common to go faulty is the magnetron.

This part of the microwave is what is responsible for producing high-frequency waves that are used to cook your food.

Most times, when you are running your microwave on a low setting, you should be able to hear the magnetron turning on and off in order to reduce the frequencies whilst the microwave cooks your food.

a faulty magnetron can cause excessive microwave noise

If the sound your microwave is making a sound similar to this, only louder, there is likely a fault with your microwave’s magnetron.

An extremely annoying high-pitched sound can also be the indication of your microwave’s magnetron tube failing.

Alternatively, if your microwave gives off a burning smell, this could also be an indication of a problem with the magnetron.

To determine if your microwave’s magnetron is faulty and to fix it, follow these steps:

  1. First make sure your microwave is unplugged so that is not electrically charged.
  2. Take off the top cover of the microwave in order to get access to the microwave’s magnetron.
  3. Discharge the microwave’s capacitor.
  4. Using a multimeter, check for continuity from the microwave’s magnetron. The readings should typically be less than one ohm.
  5. If the magnetron proves to be faulty, it will need to be replaced for a new one.
  6. Ensure caution is exercised when attempting to access the magnetron.

Faulty Cooling Fan

A faulty cooling fan is yet another issue that could be causing an overly noisy microwave. In some cases, your microwave’s cooling fan may have just become dislodged or even have debris caught in it.

This type of noise is common in many electronic devices that use fans including Xbox, PS4 and Computer fans.

If this is the case, you may hear a rattling sound which is caused by the fan making contact and clipping with another component.

In slightly more complicated cases, the motor of the cooling fan may have worn out and needs to be replaced.

If your microwave begins to buzz loudly or the sound of the cooling fan running increases, this is an indication that the problem is with the motor of the cooling fan.

Accessing your microwave’s cooling fan can be a bit of a challenge as other components may need to be removed first. Ensure utmost caution is exercised when doing this.

The following can be done to test and fix a cooling fan that is faulty:

  • Make sure your microwave is unplugged from its power source so that it is not electrically charged.
  • Discharge the microwave’s capacitor.
  • If you need to, remove any of the components that are blocking your access to the cooling fan.
  • Check the fan to see if it is spinning freely and that it is not obstructed by anything.
  • If the cooling fan is not obstructed by anything but is not moving freely, this indicates that the fan’s motor needs to be replaced.
  • Using a multimeter, check the cooling fan’s motor for continuity. Typically, these motors should read 280 ohms.
  • If the fan motor is defective, it will need to be replaced.

Stirrer Motor

The component in your microwave, known as the stirrer motor, powers a metal blade that makes sure your microwaved food is cooked evenly.

If this part of your microwave is faulty it is likely that your microwave will make a grinding type of sound.

To diagnose and fix a stirrer motor that is faulty, do the following:

  • Ensure your microwave is not electronically charged by unplugging it.
  • Above the microwave’s turntable plate on the inside of the microwave cavity, you should be able to access the stirrer motor.
  • Remove the cover of the stirrer motor.
  • Ensure your microwave’s stirrer blade is not damaged and has not become loose.
  • If you are able to, disconnect the stirrer motor and run your microwave. If it no longer makes a noise with the stirrer motor disconnected, it is likely that it is broken and needs to be replaced.

How To Silence A Hamilton Beach Microwave

Hamilton beach microwaves often don’t have a mute button.

To mute it manually follow these steps:

  1. Unplug the microwave.
  2. Remove the microwave cover.
  3. Leave the microwave to stand for at least 90 minutes to allow the capacitor time to discharge.
  4. Find the ‘beeper’, it should be located at the back of the microwave and looks like this.
  5. Take 3 or 4 small pieces of duct tape and layer them over the hole.
  6. This will significantly mute it!

Final Thoughts

For some, microwaves are somewhat of a necessary evil.

Whilst they are incredibly convenient and useful, the inevitable noises they make can be a huge annoyance.

In some cases, these noises are easy to mute or fix, but in other cases, the microwave may have a mechanical fault that requires further attention.

Either way, before you go out and purchase a new, upgraded appliance, there may be a way to solve your noisy problem.

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