AC Unit Leaking Water Inside? Causes and Quick Fixes

When you notice your AC unit leaking water inside, it can be frustrating and concerning. A leaking AC can damage your home, increase humidity levels, and signal an underlying issue with your air conditioning system. If left unchecked, this problem could lead to costly AC repair or even the need for a full air conditioning repair service. Understanding the causes and solutions can help you address the issue before it worsens.

Common Causes of an AC Unit Leaking Water Inside

Your air conditioner removes humidity from the air, but excess moisture should drain outside. When water starts leaking inside, something is wrong. Here are the most common reasons this happens:

1. Clogged Condensate Drain Line

One of the most common causes of an AC unit leaking water inside is a clogged condensate drain line. Over time, dirt, dust, and mold can build up in the drain, blocking water flow. When the line is clogged, water has nowhere to go and begins leaking inside your home.

How to Fix It:

  • Use a wet/dry vacuum to clear the blockage.
  • Pour a mixture of vinegar and warm water down the drain to prevent future clogs.
  • Call a professional AC fix service if the clog persists.

2. Dirty or Clogged Air Filter

A dirty air filter can restrict airflow, causing the evaporator coil to freeze. When the ice melts, excess water can overwhelm the drain pan and leak inside.

How to Fix It:

  • Check your air filter monthly and replace it if dirty.
  • Use high-quality filters for better airflow and efficiency.
  • Schedule regular maintenance to avoid air conditioning repair needs.

3. Low Refrigerant Levels

Low refrigerant can cause your evaporator coil to freeze. Just like with a clogged air filter, the melting ice can lead to an AC unit leaking water inside. Additionally, low refrigerant levels can reduce cooling efficiency and increase energy bills.

How to Fix It:

  • If your AC is not cooling well and you hear hissing sounds, you may have a refrigerant leak.
  • Contact a professional for AC repair to inspect and refill refrigerant levels.

4. Damaged or Rusted Drain Pan

Your AC’s drain pan collects condensation before it drains outside. If the pan is rusted or cracked, water will leak into your home instead of draining properly.

How to Fix It:

  • Inspect the drain pan for cracks or rust.
  • Replace a damaged drain pan to prevent leaks.

Signs You Need Professional AC Repair

Sometimes, fixing an AC unit leaking water inside requires expert assistance. Here are signs it’s time to call for air conditioning repair:

  • Water pooling around your AC unit despite DIY fixes.
  • Frequent leaks or recurring drain line clogs.
  • Strange noises or weak airflow from your system.
  • Higher-than-normal humidity levels in your home.

At Summers Comfort HVAC in Denham Springs, LA, our experienced technicians are ready to help with all your AC fix needs. We provide reliable AC repair services to ensure your system runs efficiently and prevents costly water damage.

How to Prevent Your AC Unit from Leaking Water Inside

Prevention is key when it comes to avoiding a leaking AC. Follow these maintenance tips to keep your system in top shape:

1. Change Your Air Filter Regularly

A clean air filter promotes proper airflow, reducing the risk of frozen coils and leaks. Replace filters every 1-3 months for optimal performance.

2. Schedule Routine AC Maintenance

Regular professional inspections help identify issues before they become serious. An annual air conditioning repair check can keep your system running smoothly.

3. Keep the Condensate Drain Line Clear

Pouring vinegar down the drain every few months helps prevent clogs. Consider installing a safety switch that shuts off the unit if the drain line becomes blocked.

4. Ensure Proper AC Installation

A poorly installed AC can lead to drainage problems. If your system wasn’t installed correctly, have a professional inspect it to ensure proper leveling and drainage.

Need Help with an AC Unit Leaking Water Inside? Call Summers Comfort!

If you’re dealing with an AC unit leaking water inside, don’t wait until it causes severe damage. The experts at Summers Comfort HVAC in Denham Springs, LA can diagnose and fix the issue quickly. Whether you need routine maintenance, a simple AC fix, or full air conditioning repair, we’ve got you covered. Contact us today to schedule your service and keep your home cool and dry!

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