Is a mysterious puddle forming right under your indoor air conditioning unit? You’re probably scratching your head about your AC leaking water. That’s not normal, right?
Your first thought might be that your system is failing. Do you have a big, expensive repair on your hands? Don’t panic; professionals know that there’s usually a straightforward reason for water leaks in an air conditioner, but it is important to move quickly.
Parthenon Plumbing, Heating, & AC Repair’s AC services handle leaky air conditioners before they cause severe water damage. In this guide, we’ll break down the most common culprits and what you can do about leaking water in or from your HVAC unit in Bellevue, Tennessee.
What Causes an Air Conditioning Unit’s Water Leaks?
Air conditioners work by removing heat and moisture from the air. That moisture turns into condensation, which usually drains safely away through a condensate drain line. When something goes wrong in that system, water can back up, leaving you with drips and puddles. Here are some of the most common reasons this happens:Clogged Condensate Drain Lines
A clogged drain line is one of the most common reasons for an AC to leak water in homes in Bellevue. Over time, dust, dirt, and even mold can accumulate in the condensate line, preventing water from draining properly. When the drain clogs, the water has nowhere to go, so it overflows. Signs of a clogged line include:- Drips near the indoor unit
- Higher humidity levels
- A musty smell
Frozen or Dirty Evaporator Coil
The evaporator coil pulls moisture from the air. If it gets too cold or covered in grime, it can freeze up. When it melts, you’ll get a mini flood inside your air conditioner. A dirty air filter, which blocks airflow, is the most common reason for a frozen evaporator coil. However, a faulty blower fan can also cause it to ice over. Regular maintenance, including filter changes every one to three months, helps keep the coil clean and frost-free.Low Refrigerant Levels
If your system is running low on refrigerant, it can drop the pressure inside your air conditioner, which may also cause the evaporator coil to freeze over and then defrost. Low refrigerant often points to a bigger problem: a leak somewhere in the system. Some of the warning signs of a refrigerant issue include:- Weak airflow from vents
- The air conditioner is not cooling like it used to
Broken or Disconnected Drain Pan
The drain pan under the air conditioner’s evaporator coil is there to catch condensation and direct it to the drain line. Is it rusted, cracked, or out of place? Water will leak onto the floor. Older systems (over 10 to 15 years old) are more likely to have a worn-out drain pan. If you have an AC leaking water, and you’ve ruled out a clogged line, the pan could be the culprit.Can a Leaky AC Cause Water Damage to Your Bellevue Home?
Over time, even a small drip from the air conditioner can lead to warped floors, soggy drywall, mold, and mildew. In humid Bellevue summers, that damage happens quicker than in some other locations. If you’re dealing with an air conditioner leak, don’t wait to fix it. The longer it drips, the more it costs to repair the air conditioner and your home.
