We sometimes don’t notice the humidity that builds up on a hot day, and we certainly don’t know how much of an impact this has on our health and well-being. A leaky air conditioner can add to your misery by dripping water onto your floors and into your walls, causing you to have mold issues or get sick from the bacteria buildup. The truth is that if you’re having these problems with your AC unit then there’s a good chance it needs to be checked by a professional AC technician before the season gets too hot again.

If you’ve noticed that your air conditioner is leaking, it’s time to take a look at the unit and see why. It could be as simple as changing out some air filters or cleaning up the coils. If you’re not sure where to start, don’t worry! There are a few reasons why your AC unit is leaking, and we have listed them below:

Uncleaned Air Conditioner Filters 

The summer is right around the corner, and many of us are excited to turn on our air conditioners. But before you do that, it’s important to make sure your filter is clean! If your filter is dirty, then the heat from your air conditioner will just blow all that dust back into the room. That means more allergens in your home and a higher chance for leaks.

It is a well-known fact that air conditioner filters need to be changed every 12 months. If you don’t change your filter, then the chance of leaks increases substantially due to the dirt and debris accumulating on it. What many people don’t know is that dirty filters can also cause mold and mildew growth inside the unit itself which will create an even bigger problem when it comes time to clean up after a leak.

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Dirty filters are detrimental in more than one way, so make sure you are changing them out as often as needed!

Air Conditioner Disconnected Drain Pipes

The AC unit in your house needs to be drained regularly, or you will have a leak. But why is that? It’s because the drain line runs from the condensing coil and into the ground. This means if water accumulates in the bottom of your furnace (where it should evaporate), it can flow out through any hole in this tube and get on anything below, like carpeting or wood floors. The disconnection of your air conditioner from its drain line can allow water to accumulate inside when you are not using it, which leads to leaks that need repair!

This is one of the most common causes of a leaky AC unit sot it’s important to know that this will cause water in your basement or crawlspace as well as make an otherwise functional AC unit stop working properly. When this happens, be sure to fix it before things get out of hand.

Drains From Your AC Unit That is Blocked 

The drainpipe that is attached to the indoor unit’s gutter needs special attention. If it becomes blocked, then water will build up inside of your home and could potentially leak onto other floors or outside around the house. When this happens, mold may develop and cause damage to your property while also affecting your health.

It also helps if you take a look at where your safety drip tray underneath the furnace is located, as this can help avoid leaks in different areas of the property by collecting excess overflow from time to time during periods when humidity reaches high levels due to rainstorms for example.

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Having a Low Conditioner Refrigerant Level 

Lowering the refrigerant level in an air conditioning system can cause leaks. This is because the cooling coils are designed to work with a specific amount of refrigerant, and if less than this amount is present, then it will be more difficult for them to do their job. The result? Leaks that needlessly increase your energy bill!

To properly fix a leak that’s coming from a refrigerant, you need to seek the help of a professional since this can be a bit of a hard task to do.


Leaky air conditioners can be a huge problem for homeowners. Not only is the sound of the leaking air frustrating, but it also means that your cooling system will not work as efficiently as possible, and you might end up spending more money on utilities than necessary! Be sure to fix leaks in your AC system, so problems won’t escalate further.