As days go by, window air conditioners are gaining more popularity. Window air conditioners are the simplest type of air conditioners on the market. Window air conditioners are highly in demand because of how convenient they are. 

Even though they are trendy, we hardly know anything about them. Most of us aren’t even aware of how window air conditioners function. A question that often pops into people’s minds while purchasing window air conditioners is, “Where Are The Drain Holes On A Window Air Conditioner?”. The reason behind this question is our lack of knowledge about window air conditioners. 

Luckily for you, this article will let you know everything you need to know about window air conditioners. 

where are the drain holes on a window air conditioner

Where Are The Drain Holes On A Window Air Conditioner?

Window air conditioners need to drain to function properly. The Drain hole of the window Air-Conditioner usually resides underneath the exterior portion of the unit, and it is tiny.

Window Air conditioners function differently from other air conditioners. Window air conditioners work by pulling.

Room temperature air into the unit and moves over the cold refrigerant coils. The atmosphere is cooled as it passes over the cold coils, and afterwards, it gets pushed out into the room. When it gets pushed out into the room, it cools the room and brings down the temperature.

Functions Of A Drain Hole In A Window Air Conditioning Unit 

The Drain hole of a window air conditioning unit is there to help drain the water that had gathered inside the window Air-Conditioning unit. It is crucial to drain a window air conditioning unit. 

 The Drain allows the window air conditioning unit to release the water stored while cooling your room’s air. Draining the water of your window air conditioner is crucial.

What Happens If A Window Air Conditioner Doesn’t Drain?

Sometimes the drain line of your window air conditioner gets clogged, the water that your window air conditioner produces can’t find a place to go. So, The water from your air conditioner sits in the line or in the pan you use for draining and then slowly wafts back into the atmosphere, which shoots your indoor humidity levels through the roof. 

Too much humidity in the air can be highly annoying as hair gets frizzy, and overall it’s incredibly uncomfortable. Humidity also contributes to issues like mold and mildew growth. These cause a lot of health problems on their own.

In the same way, sitting water or water vapor around your air conditioning unit is responsible for further corrosion or rust of metal parts that make contact with the water or are located near it. Rust trims the lifespan of your system and could be a reason for replacement. 

However, replacement is a costly issue that could easily be avoided by following a few steps. So, you don’t want water sitting around in the bottom of your drain pan or anywhere near the window Air-Conditioning unit.

 Another issue can raise in its head. When the water is unable to drain away, it will simply continue to get mixed up with the air in your room as your air conditioner runs. If the humidity in your room is too High more water will be collected from the air by your air conditioner, and soon it will fill the pan up. Before you know it, you have a completely blocked drain line in front of you which can cause catastrophic damage to your home.

Water that overflows the pan can cause are incredibly damage to drywall. it could stain your walls, weaken their structure and even damage your floors, furniture, or anything else that may be in the area. Your electrical system could also be impacted if water finds its way to an exposed wire or other issues. And like we mentioned previously, this water could also foster mold and mildew growth and even do so faster than water vapor or humidity ever could.

So, suppose there is water building up in the drain pan beneath your window air conditioning units equipment. In that case, it’s essential that you thoroughly go through the issues your window air conditioner might be facing as soon as possible.

The Difference Between Your Window Air Conditioner Leaking and draining 

When there’s something wrong with your window air conditioning unit, it starts leaking water and freon. However, draining is more of a voluntary process for your air conditioner. Window air conditioners need draining every 2-3 hours.

Read more: 10 Common Window Air Conditioner Thermostat Troubleshooting

Reasons Why Window Air-Conditioners Leak

There are many reasons why your window air conditioner might be leaking. Here are a few reasons why your window air conditioner might be leaking:

1) Window Air conditioner Unit Is Leaking Water Because Of Condensation Drain Blockage: In almost every case, the water is leaking from the front of the window Air-Conditioner unit because of blocked condensation drain. 

As annoying as this seems, this is the easiest leakage to solve. Every window air conditioner removes moisture and works as a dehumidifier; it draws moisture from the indoor air. Removed moisture is then collected in the condensation pan, situated at the bottom of the window Air-Conditioner unit. The condensation drain is connected to the overflow pan to the drainpipe, which allows for standard functioning. 

When the Condensation drain is partially or permanently blocked, everything starting from dirt, mold, leaves, and even dead animals such as bees, flies, or baby birds can clog the Drain of the condensation. When this happens, the water cannot escape from the condensate pan, which causes a spillover. So you will notice water spilling. The amount of water that spills depends on the block. 

2) There is a hole in the condensate pan. If you have been using your air conditioner for more than 10+ years, the condensate pan will start to break down, and there will be leaks on it. These leaks will cause the water to spill. The older units face this problem the most. Condensate pans collect the water the air conditioner unit gets rid of from the indoor unit. 

The condensate pan is located at the bottom of the window Air-Conditioner unit. This pan has less than 2pints capacity. The condensate pan must be intact, or the water doesn’t stay in the pan. If there is a hole in the pan or even a tiny dent, water will start leaking from that hole. 

3) Frozen evaporator coils are often responsible for window air conditioner leaks. It would help if you cleaned your air filters twice a year. If you don’t clean them twice a year, chances are the dirty air filters can cause a frozen evaporator coil. 

Due to the frozen evaporator coil, the window air conditioner will leak water and might even blow hot air. Air filters are mainly there to remove larger particles like hair, dust, bugs, debris, and stuff similar to these. Impurities like these can cause condensation drain leakage. If air filters are correctly and regularly cleaned or changed, the window Air conditioner unit will have unrestricted airflow and function usually.

4) Deficient refrigerant levels can cause window air conditioner leaks. Low refrigerant levels are the worst; they are incredibly annoying. 

5) The condensate pump not pumping water out properly is a big reason behind window air conditioner leaks. This problem only occurs for people with below-ground level air conditioner units with condensate pumps. This is the rarest cause of window air conditioner units leaking. 

If you are the owner of a below-ground level Air-Conditioner, you will need an in-built pump with your Air conditioner unit. This pump is used to drain the water instead of the drainpipe; this pump actively transports the gathered water against gravity to the surface to get proper drainage. If the excess water isn’t being pumped to the surface, the condensate pan will overfill quickly, and you will notice a leakage.

6) Sometimes, after installing your window air conditioner unit, it starts leaking. The main issue behind this is improper installation. When your window air conditioner isn’t installed correctly, it causes water leakage. Remember that this can also happen if you just relocated an existing air conditioner to another window.

These are the main reasons behind window air conditioners leaks.

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List Of Best Window Air Conditioners 

1)Friedrich Kuhl 10,000 BTU Window/Wall SlideOut Air Conditioner:

Product Features

Friedrich Kuhl 10,000 BTU Window/Wall SlideOut Air Conditioner has Built-in Wi-Fi control on the go with the Friedrich GO App along with Smart home/voice command device compatibility (Amazon Alexa) and 24-hour timer.

It is Remote Controlled and has Heavy-duty insulation on the inner wall for sound absorption. The Stiffened sheet metal casing of the air conditioner blocks external noise. Wide air discharge vents optimize airflow and minimize the front panel noise of the air conditioner. Counterweights dampen vibration and decrease the sound of the air conditioner. 

2)GE AHY08LZ 8,000 BTU 115-Volt Smart Window Air Conditioner

Product Features

GE AHY08LZ 8,000 BTU 115-Volt Smart Window Air Conditioner uses standard 115V electrical outlet (Easy window mounting kit and remote control included). It Connects to the  WiFi system. This Wirelessly controlled window air conditioner functions from your smartphone. It works with Alexa, Google Assistant, and Apple Homekit. It is Energy Star Certified. 

You can enjoy the same great cooling power as standard units while using less energy by using this air conditioner. It Quickly cools a room up to 350 sq. ft. with dehumidification up to 2. 1 pint per hour. This air conditioner has Digital controls, 3 cool speeds, 3 fan speeds, and 2-way air direction along with an Easy clean air filter. Easy installation is also available. It fits windows 24 1/2 – 36 in wide, minimum height 13 3/8 in.

3)FRIGIDAIRE 5,000 BTU 115V Window-Mounted Mini-Compact Air Conditioner with Mechanical Controls

Product Features 

FRIGIDAIRE 5,000 BTU 115V Window-Mounted Mini-Compact Air Conditioner with Mechanical Controls maintains the preset room temperature, so you will remain comfortable at all times. It has an Easy-to-Clean Washable Filter. It Captures dust from the air and keeps your dehumidifier working efficiently with our easy-to-clean washable filter.

It has SpaceWise Adjustable Design Optional Side Panels. With the Adjustable Side Panels, the side panels will extend to best fit your window. It also contains Power Cord. It comes with an extra-long three-prong cord — which makes extension cords unnecessary. It Effortless Restarts and Automatically resumes operating at its previous settings when power is restored to your unit.

4)Midea U Inverter Window Air Conditioner 12,000BTU

Product Features 

With the advanced DC Inverter technology, Midea U achieves over 35% energy savings compared to other traditional units, and it’s the first window AC to obtain the ENERGY STAR Most Efficient 2020 Certification. You may also get exclusive benefits from your local energy distributor. This air conditioner is 9 times quieter than some traditional units. The U-shape blocks the noise from the cooling system using your window. This design allows for extremely quiet operation as low as 42 dBA – almost as quiet as a library – so you can get a restful night’s sleep or binge your favorite shows undisturbed.

Midea U-shaped design allows your window to open, bringing fresh air into your home anytime allowing you to maintain more of your view. The Midea U is Wi-Fi-enabled, it can be controlled from anywhere through the cloud using the MideaAir app on iOS or Android. You can also use voice commands with Alexa or Google Assistant if you prefer. The support bracket is included for a more robust installation that supports the unit with the window open or closed. Available for single-hung or double-hung windows with sizes: 22-36 inches, minimal height at 13.75 inches.

5)Soleus Air Exclusive 6,000 BTU Energy Star

Product Features 

Soleus Air Exclusive 6,000 BTU Energy Star’s Exclusive design combines the benefits of a portable ac, window ac, and mini-split ac into a simple format. It Simply slides the saddle air conditioner over the window sill for a safe installation without any tools required or risks of the air conditioner falling out of the window. The maximum window sill clearance this unit will fit in is 11 inches. Fits windows 24″ to 48″ wide. Fits windows with a minimum of 16″ height clearance.

This air conditioner Connects to WiFi to control the Hybrid AC from your phone or connect to Alexa or Google Home. By Activating the MyTemp sensor on the remote control you can relax anywhere in the room while the air conditioner cools to your exact location also. 

You can save on energy costs with the 24-hour timer, energy saver mode, and sleep mode and rest easy knowing the air conditioner with automatic restart after a power interruption.

Electronic controls and LCD remote control keep all of the industry-leading features at your fingertips. Washable and reusable filter for easy maintenance and extended product life.

6)Friedrich Chill 8,000 BTU Window Air Conditioner

Product Features 

Friedrich Chill 8,000 BTU Window Air Conditioner has Built-in Wi-Fi control on the go with the Friedrich GO App

It has a smart home/voice command device compatibility (Amazon Alexa) and a 24-hour timer. It has Heavy-duty insulation on the inner wall for sound absorption. The Stiffened sheet metal casing of this air conditioner blocks external noise.

The Wide air discharge vents optimize airflow and minimize front panel noise and Counterweights dampen vibration and decrease sound.

7)Friedrich Kuhl 10,000 BTU Window/Wall SlideOut Air Conditioner

Product Features 

Friedrich Kuhl 10,000 BTU Window/Wall SlideOut Air Conditioner has Built-in Wi-Fi and is Voice command compatible. It can Create customizable 7-day schedules along with Advanced grouping of multiple units. It also has a 24-hour timer. the Friedrich Kuhl 10,000 BTU Window/Wall SlideOut Air Conditioner has Up to 4 cooling and 4 fan-only. it speeds on select models. The auto fan adjusts the fan speed to maintain the set temperature in the Friedrich Kuhl 10,000 BTU Window/Wall SlideOut Air Conditioner. 

Auto-changeover between cooling and heating modes (Kuhl+ models except for KEQ08) is also available in this air conditioner. this air conditioner Auto restarts has an 8-way airflow control for better air distribution, the Control panel lockout (ON/OFF), is Up to 45% quieter than competitive models. 

It also contains Steel inner wall and extra dense insulation blocks outdoor noise, Vibration isolating design and components reduce operating noise, Precision engineering delivers maximum airflow and air dispersion at low sound levels, Superior fresh air intake, and stale air exhaust vent, Washable, antimicrobial air filter, Carbon filter absorbs odors and reduces ozone and volatile organic compounds (VOCs). Dual filtration of this air conditioner provides superior air filtration with ratings as high as MERV 6.

The Friedrich Kuhl 10,000 BTU Window/Wall SlideOut Air Conditioner Checks filter reminder. it contains Hinged doors which allow easy filter access for easier maintenance, a Robust 20-gauge steel cabinet, a Solid-steel blower housing that offers enhanced protection, and Totally enclosed commercial grade fan motor which runs at a lower temperature to prevent overheating and is double mounted for added stability and reduced wear. 

The Durable base pan and steel inner walls, Aluminum endplates will not contribute to rust-stained building exteriors, Scratch-resistant cabinet, High-tech aluminum fins with rifled copper tubing is more efficient and less prone to corrosion, ENERGY STAR qualified models, including heat pumps also play a huge role. 

The Friedrich Kuhl 10,000 BTU Window/Wall SlideOut Air Conditioner has Multiple scheduling options to save energy. Kuhl+ heat pumps provide energy-efficient cooling and heating of this air conditioner is also very important.

 This air conditioner has Temperature limiting for maximum low and high-temperature settings along with Smart grid capability via participating energy providers and Environmentally friendly R-410A refrigerant used in all models also Recyclable packaging.

The EntryGard anti-intrusion protection secures the chassis to the sleeve to deter kick-in intrusion, Power cord leakage current protection, Insect barriers are very important Features. The aluminum rear grille protects the outdoor coil from debris and vandalism.


“Where Are The Drain Holes On A Window Air Conditioner?” You asked. Well, the response is simple and has been given in this article. The answer to your question has been thoroughly explained. 

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