Finding water around an air conditioner is puzzling and concerning for any homeowner, especially when it happens during the hottest days of summer. While a small amount of condensation is a normal part of the cooling process, visible leaks, or standing water can signal that something’s wrong.
It’s important to understand the common causes of an air conditioner leak so you know when to call an HVAC professional in Metro Detroit.
How Does an Air Conditioner Produce Water?
As your air conditioner cools your home, it also removes moisture from the indoor air. This moisture collects on the evaporator coil and drains into a condensate pan. After that, it flows to a condensate drain line outside. When functioning properly, this is a seamless process that you won’t be aware of.
However, sometimes a blockage occurs in the drainage system, or perhaps another part of the unit isn’t operating correctly. In that case, water can back up and leak around the indoor unit.
5 Reasons Your Air Conditioner is Leaking Water
From a clogged condensate drain line to a dirty air filter, there are many reasons why your air conditioner could be leaking water.
1. Clogged Condensate Drain Line
This is actually one of the most common causes of an AC water leak. When dust, dirt, algae, and other debris builds up inside the drain line over time, water can’t flow properly away from the unit. The blocked line can lead to an overflowing condensate pan, which then pools water around your indoor air handler or furnace.
2. Dirty Air Filter
A clogged air filter restricts airflow across the evaporator coil, which then results in the coil becoming too cold and freezing over. As the ice melts, it produces more water than the condensate system can keep up with, which is how the leaks start. It’s easy to replace your air filter, and it should be done regularly to avoid this common problem.
3. Frozen Evaporator Coil
Anything from restricted airflow to low refrigerant levels to mechanical problems can cause the evaporator coil to freeze. Once the ice begins to melt, excess water spills over the drain pan and onto the floor.
4. Damaged or Rusted Drain Pan
Older air conditioning systems may have rusty or cracked condensate drain pans. Even if the drain line is functioning properly, water can escape through these openings before reaching the drain. Repair or replacement of the drain pan may be necessary in this case.
5. Condensate Pump Problems
If your home uses a condensate pump to move water away from the indoor unit, water can accumulate and eventually overflow from the drain pan when the pump fails or loses power.
What Should You Do if Your AC is Leaking?
If you notice water around your indoor air conditioner, turn the system off so no additional damage occurs. Take a look at the air filter to see if it’s dirty, then check the area around the indoor unit for signs of a clogged drain or overflowing pan. Don’t attempt DIY repairs that involve electrical components or refrigerant. Specialized training and equipment are needed to address these issues, and a professional Michigan HVAC contractor will have to be called.
When to Call an HVAC Professional
Schedule professional service if:
- You have replaced the air filter and leaks keep happening
- You notice ice on the unit
- Your home is experiencing water damage
An experienced HVAC technician in Metro Detroit can determine the underlying cause, clear blockages, inspect key components, and make any necessary repairs to restore your system’s performance.
It’s also a good idea to schedule regular maintenance to prevent these issues from happening in the first place. During an annual tune-up, your technician will inspect the condensate drain, clean components, and ensure proper operation of the entire unit.
Schedule an AC Inspection With Warm or Breezy
Whether due to a clogged condensate drain, frozen evaporator coil, or another issue, we can help diagnose and fix the source of your AC leaks. Schedule an AC inspection with our team so we can keep your cooling system running efficiently all summer long. Contact us today at (586) 335-3044.