Is your air conditioner suddenly leaving a puddle of water near the indoor unit? You’re not alone. Many homeowners in Jerseyville, IL, face this common yet potentially damaging issue during hot and humid months. While some water discharge from your AC unit is normal due to condensation, continuous or excessive leaking usually points to a problem that shouldn’t be ignored.
AC leaks often point to hidden issues like clogged drain lines, dirty filters, or frozen coils. These problems disrupt your system’s ability to manage condensation, leading to water pooling around the unit. Left unchecked, leaks can cause mold growth, water damage, and reduced cooling efficiency. Watching for signs like musty smells or water stains can help catch problems early. While some fixes, like changing the filter, are simple, ongoing or excessive leaks usually require a professional inspection to prevent further damage.
Is It Normal for ACs to Leak Water?
It’s natural for your air conditioning system to produce water during the cooling process. This happens when warm air passes over the evaporator coil, which causes condensation that drips into a drain pan and flows out through a condensate drain line.
However, it’s not normal for water to:
- Pool around the indoor unit
- Leak through ceilings or walls
- Cause musty odors or damage to flooring
If leaks continue and your system is outdated, it might be time to consider a new AC installation.
According to the U.S. Department of Energy, clogged drain lines and dirty filters are among the most common causes of AC malfunction, often leading to leaks and system inefficiency.
Common Reasons Why Your AC is Leaking Water
Here’s a breakdown of the most frequent causes of water leakage and what each one means:
| Cause | Explanation |
| Clogged Condensate Drain Line | Dirt, algae, or mold can block the drain line, causing water to back up and leak out. |
| Dirty Air Filter | Reduced airflow can cause coils to freeze; once thawed, excess water floods the drain pan. |
| Low Refrigerant Levels | Can result in frozen evaporator coils and excessive melting. |
| Broken Condensate Pump | In basements or attic units, if the pump fails, water can’t be pumped out. |
| Improper Installation | If the AC is not level or drain setup is faulty, water won’t flow properly. |
| Rusty or Damaged Drain Pan | Corrosion in older systems can lead to leaks from the bottom of the unit. |
| Frozen Evaporator Coil | Common in systems with airflow problems or refrigerant issues. |
Signs Your AC is Leaking Water (And Not Just Condensating)
Watch for these warning signs that your air conditioner leak is more than just harmless condensation:
- Water stains on the ceiling near the indoor unit
- Pooling water around the air handler or furnace
- Reduced cooling performance
- Unpleasant musty or moldy smells
- System shutting down intermittently
The EPA warns that unchecked moisture from HVAC systems can lead to mold growth, which may affect indoor air quality and pose health risks.
If you’re noticing frequent shutdowns, smart thermostat installation could also help regulate indoor conditions more effectively.
What to Do If You See Your AC Leaking: Step-by-Step
Step 1: Turn off your AC system at the thermostat to prevent further water damage.
Step 2: Replace your air filter if it’s dirty or clogged.
Step 3: Check the drain pan for cracks or overflowing.
Step 4: Look for ice on the evaporator coil. If present, allow it to melt fully.
Step 5: If the drain line appears clogged, use a wet/dry vacuum to try and clear the line.
Step 6: Still leaking? It’s time to call the pros at Womack Heating and Cooling.
How to Prevent AC Water Leaks
Regular maintenance and simple preventative measures can eliminate most AC leaks before they start.
Replace Air Filters
- Frequency: Every 1–3 months
- Benefit: Keeps airflow strong and coils free from ice buildup
Schedule Annual AC Tune-Ups
- Benefit: Professionals clean the system, check refrigerant, inspect drainage, and optimize performance
- Studies show that systems receiving regular maintenance operate up to 15% more efficiently and last longer.
Clean the Drain Line
- Pour 1 cup of vinegar or bleach into the drain line every few months
Ensure Your Unit Is Level
- AC systems must be level to drain properly, especially window or mini-split systems
Install a Safety Float Switch
- Automatically shuts off the unit if a leak is detected
Real-World Case Study: AC Leak Solved in Jerseyville, IL
A homeowner recently called us after discovering water damage near their indoor AC unit. After a thorough inspection, we identified a clogged condensate line and damaged drain pan. We cleaned the line, replaced the pan, and added a safety switch to prevent future flooding. Their system now runs perfectly, and their home is dry and cool.
Understanding the AC Cooling & Drainage Cycle
Let’s simplify how AC systems manage moisture:
| Component | Role in Preventing Leaks |
| Evaporator Coil | Condenses moisture from warm air |
| Drain Pan | Collects condensation before draining |
| Drain Line | Channels water outside the home |
| Air Filter | Maintains airflow to prevent freezing |
| Condensate Pump | Pumps water in vertical or basement installations |
If any of these components fail or get clogged, leaks are likely to occur.
Why Jerseyville Homeowners Trust Womack Heating and Cooling
We’ve helped hundreds of local families solve cooling problems before they turn into home disasters. Here’s what sets us apart:
- Fast Response Times: We know AC leaks can’t wait
- Expert Diagnosis: We find and fix the real cause, not just symptoms
- Upfront Pricing: No surprises, just honest quotes
- Local Experience: We understand Jerseyville homes and climate
- Preventative Care Plans: Save money and avoid emergency calls
We also handle ductwork installation and ventilation system upgrades to ensure your air moves efficiently.
Call us at (618) 234-2567 to schedule your leak diagnosis or maintenance service.
Don’t Ignore the Drip
A leaking AC may start small, but the consequences can grow quickly, from higher energy bills to expensive home repairs. By understanding the causes and acting quickly, you can avoid water damage and ensure your AC performs efficiently all summer long.
Summer Tip for Jerseyville Homeowners:
During humid months, your AC works overtime. Schedule a tune-up in late spring to catch potential drainage issues before the busy season kicks in. Preventative care now saves money, and mess, later.
If you’re facing water leaks or just want peace of mind, Womack Heating and Cooling is here to help. With expert technicians, fair pricing, and unmatched customer care, we’re the trusted name for AC repair in Jerseyville, IL.
Don’t Wait for Water Damage
Every drop counts. Don’t let a minor AC leak turn into mold, drywall damage, or costly restoration work. Call Womack Heating and Cooling at (618) 234-2567 today to stop the leak fast, and keep your home cool, dry, and comfortable.
