Here are a couple of the tricks we’ve tried with moderate success, to   fix  or  reduce window air conditioner noise. How to quiet a noisy window air conditioner. If you have any tips or suggestions to add, your feedback is appreciated. These and more soundproofing covers will significantly reduce noise levels produced by the air conditioner. If the AC voltage is still too low, tell your utility company. Tighten nuts and bolts if they are loose. We live in London. Have several sizes of each of the straight / blade, Philips, and star head drivers.

I created this blog to share what I learned and to make it easier for you to improve your quiet space too.

Thanks, Terry.

Pass the Cool Air through Vents by Ducting. This method is often seen in offices and public places. You can “plug up” this source of noise, by stuffing small pieces of this material in between the rattling metal pieces. In today’s post, I will be touching on some of the most simple and practical ways to make your air conditioner quieter, hassle-free. But you need not spend a lot for one, as you don’t need great reading precision when testing air conditioner parts. Read the manufacturer’s installation instructions before beginning, and follow their directions. Why? It may indicate that something is rubbing against the copper lines too. Especially if you spend the day in the well-cooled office or outside.

All air conditioners will make noise, and while a well-built A/C unit may be more expensive, it should be quieter and last longer. But today’s bearings are pre-lubed. Indeed, we’ve installed units from five to twelve thousand BTUs in our windows at various apartments, homes, trailers, and basements, and have been frustrated by all the noises of the roaring fans, cycling compressors, snapping air cleaners within, whistling vens, and the window rattling as the installation loosens. However, if it is frequently clicking on or off, there may be a problem with the unit’s thermostat, an electronic component, or relay switch. If the sound is coming from within the product, it could mean a part like the fan has come loose. What are the best soundproofing materials for a noisy air conditioner? These seem to carry all through the house where window air conditioners are running. Tighten any loose parts or fasteners which may rattle or vibrated. Even the best ones grower noisier over time. Here’s a look at some of the quieter window models on the market. Check for any loose screws, bolts, nuts, spring clamps, belts, or parts and tighten or replace as required. A simple way that manufacturers reduce noise from this component is through the installation of an insulator. As such, you will be able to  have a quieter air conditioner, especially when running at low speeds. Do the same with the cooling fins if required. A buzzing or burring may prove to be an unbalanced or loose fan, or that the fan motor may be loose or failing. e. buzz, and vibrate. Why are window ACs quieter than portable ACs? You never know what kinds of fasteners you’ll need to tighten up in the numerous brands of window air conditioners out there. The noise a window A/C unit makes does vary between manufactures but there is somethings you can do to help get rid of unwanted noise. It could be that the noise is not from the air conditioner itself, but water dripping onto the concrete floor, which frankly can quickly become a steady source of disturbance. These hold the fans and compressor in place. Plus, they suspend the fan motors and position the blades at the correct spot in front of the condenser coils. City not exactly well known for its hot weather. The banging could be caused by the air filter hitting the grill when it starts a cooling cycle, or be due to a loose or broken part. If they start squeaking too soon, you’ll probably have to replace the fan motor. First off, you need to choose a suitable location for your AC. Observe that the rubber vibration pads on the compressor’s feet are still supple. Those are the main five types of AC noises. Often indicates that something may be broken or loose within the compressor. Enter your email address to subscribe to this blog and receive notifications of new posts by email. But first, why reduce the air conditioner sound? And, we got great results with it. Also, blowing cellulose insulation inside the wall may dampen vibrations. The bolts that hold it down may have vibrated loose, or the rubber pads that it sits on have deteriorated and need to be replaced. Make sure everything is secured as it should be. Also, consider components such as fans, compressor insulation and more when buying a new AC. There are several steps to check if your window air conditioner is making too much noise, or has begun making a new sound.

Alternatively, you can opt for wood fencing. Fans with dry bearings can squeal, start up too slowly, and overheat and burn out. Also, keep in mind to prune the vegetation often to achieve the predetermined spacing. Rubber fabric belts are often found in window air conditioners. They dampen the sound hence helping in air conditioner noise reduction. It is fade resistant as it is water repellent. However, a unit that beeps more frequently may mean that a power supply is failing or an internal relay is faulty. One way to go about it is to fix anti vibration foam beneath the AC. Hi Avi, Are the 2 AC units on the ground? Quietest Window AC. Check this by knocking on the wall.

Best Quietest portable air conditioners. When this happens, the refrigerant escapes producing a hissing sound due to extreme pressure in the coil. Humming is a normal electric sound but may indicate vibrating of the refrigerant coils that can lead to bigger issues. How to Make Portable Air Conditioner Quiet. So routine oiling with a long-tubed applicator helps them rotate more smoothly and quietly. If the cooling unit begins to make a new sound, then check it out. These can pack enough force to seriously hurt a finger or hand that gets in their way. Needed to check for correct line voltage and troubleshoot thermostats, micro switches, and fan motor windings. It is somewhat weather proof and does a good job at reducing noise. 15 Types of Window Air Conditioner Noises, 10. A look at 5 budget and 3 premium methods, Why Is Soundproofing So Expensive? They reduce the noise produced by the condenser and compressor. We’ve done this successfully. Fans are also chief producers of noise especially when the AC is running at 100 percent capacity. Sometimes, especially in older cooling units, there’s just no toning them down. Alternatively, insert rubber or silicone strips to absorb vibration between parts that rub and tighten.

However, it mostly depends on the type of noise the unit is making. Related: Latest articles on Soundproofing Hacks, Your email address will not be published. Erecting a two-sided one will not aid in air conditioner noise reduction, but rather facilitate sound reverberation. A popping or crackling sound may be caused by humidity condensing, or icing up on the coils.
But the best answer to quiet this type of air conditioner noise is to move it to a more massive wall.

But when that’s not an option, the above steps and tips have proven to work well; not perfect, mind you, but effective. Usually, we have about two weeks of hot waves, therefore investment to a split air conditioning unit for a house or flat is hard to justify. Not only can the right voltage quiet most air conditioner hum, but likely prevents motor burnouts too. The thermostat may be set too low, or the drain may be clogged. When checking window air conditioners, addressing any low line voltage conditions is quite important. Many units normally click when they start or shut down. In fact, they offer 5 decibels insulation resulting in 40 percent noise reduction.

Step 2: If the noise is coming from inside the window unit, check for twigs, leaves, or other debris. In this article, I’ll discuss the different sounds you may hear from your cooling unit, what the noise may indicate, and how to quiet or mute noises. AC motors such as those found in common air conditioners, can hum and buzz excessively when the mains voltage is too low. It might sound weird but, you might be a victim of vibrations due to the unsteady installation surface. The location means it is closer and more directly part of the living area, so any noises it produces will be more disruptive. Make sure gaskets, seals, and weather-stripping are where they should be.

The best way to quiet a noisy window air conditioner is through regular maintenance, ensuring the unit is properly secured, and any loose parts are tightened. Call for service if the fix is outside your comfort zone. Close the window onto the A/C to secure it in place, most of the weight is outside the building. However, a whistle to one person could be a squeal to another.

Conventional air conditioners run at 100 percent capacity. Damaged fan blades can create many noises and also cause damage to the motor too. If the AC is inside your house, it is likely due to a defective motor blower. The air conditioner generates 58.4 decibels on the highest setting which is slightly louder than other models we reviewed but it’s quieter than most window air conditioners on the market. You might be surprised​. One very easy step to take, is to tighten all screws, tap down rivets, and re drive nails. We suggest spending no more than $50 for a meter used in HVAC repairs. So, if your air conditioner is noisy, then, follow the following simple tips and soon you’ll enjoy a peaceful silent night’s sleep.

This in return will increase the overall noise. It should be level from side to side and have a slight tilt toward the back to prevent moisture pooling. 09/06/2019 885 Views. They have a noise level ranging from 60dB to 40dB. Used to fill in spaces where metal vibrating against other metal can be a big noise source. Use white grease or light machine oil to lube moving parts. Window air conditioners are usually seasonal appliances mounted in a window opening to provide cool relief to a small area. Here are a few crucial aspects you need to consider. However, it mostly depends on the type of noise the unit is making. You’ll get the precision you need, without having to worry too much over breaking a more expensive meter if you drop it. This compressor vibration problem may not be as easy as easy to solve as the air noises, squeals, and bangs. The following is a list of noises a window air conditioner may make and what it could mean: A leaf or other debris could be caught in the blower, and the air movement is causing a whistle.

If parts are broken and can be replaced, exchange them using proper parts. The compressor may make a normal thunking noise when it starts up. 4. One lubricant we used was white lithium grease. Hoping to reduce the need for the lubricants mentioned above, we’ve reinforced the metal stand-off brackets in some of our window air conditioners. In this article, I’ll discuss the different sounds … Select the location of your thermal control systems (air conditioners or heat pumps) carefully when installing a new unit. Here are some of the things I have found over the years to help quiet a unit. To see if your voltage is too low, read the voltage at the outlet with a multi meter. But failing belts here can cause excess hissing, rubbing and squealing sounds, and thus, can add markedly to the loud noise your AC unit makes. To solve this, choose either brick or cement walls for your window AC unit.


Beyond the steps above, you can also place it on a carpet or rug that acts as a cushion to absorb sounds made by its vibration, or get yourself an anti-slip vibration pad instead. This unit comes with an air conditioner kit which includes a filter, support bracket, side panel leaf covers, and window sealing foam. Program using the remote or touchpad, and enjoy the cool air. Plus, some of the high end models also feature water pumps (to draw out the condensed water), electronic air cleaners (for keeping dust, pollen, and other allergens at bay). Unfortunately, it is daunting to repair a broken compressor. In certain situations, the refrigerant pressure may be wrong. Quietest central air conditioners. If a bracket or joint is making sound, apply some grease there as well. A loose part or belt can also cause a whistling sound.