Have you noticed water pooling around your air conditioner? A leaking AC can be frustrating and even damaging to your home. But don’t worry! We’re here to help you understand why this happens and what you can do about it.
Why Does an AC Collect Water in the First Place?
Your air conditioner doesn’t just cool the air it also removes excess humidity. As warm air passes over the evaporator coils, moisture condenses into water droplets, which then drip into a drain pan and flow out through the condensate drain line.
This process keeps your home comfortable and dry. But if something goes wrong, that water can end up inside your home instead.
Can You Keep Using Your AC If It’s Leaking?
Technically, yes. But should you? Definitely not!
Running your leaking AC can lead to bigger problems, like electrical damage, mold growth, or even a complete system failure. If you notice a leak, turn off your unit and call an HVAC professional.
Common Causes of a Leaking AC
Here are some of the most common reasons why your air conditioner might be leaking water:
1. Clogged Condensate Drain Line
Over time, dirt and debris can clog your drain line, preventing water from flowing out. When this happens, water backs up and spills out of your AC unit.
Quick Fix –
- Turn off your AC.
- Locate the drain line and try flushing it with a mixture of warm water and vinegar.
- If the clog is stubborn, you may need a wet/dry vacuum to clear it.
2. Cracked or Rusted Drain Pan
If your AC is older (10+ years), the drain pan may have developed cracks or rust, causing water to leak instead of draining properly.
Quick Fix –
- If the damage is minor, you can use a water-resistant sealant to patch small cracks.
- For severe rust or cracks, it’s best to replace the drain pan.
3. Dirty Air Filter
A clogged air filter can restrict airflow, causing the evaporator coils to freeze. When they eventually thaw, excess water can overwhelm the drain pan and leak onto the floor.
Quick Fix –
- Check your air filter every month and replace it if it’s dirty.
4. Low Refrigerant Levels
When refrigerant is low, the pressure in your AC drops, which can cause the coils to freeze. Once they thaw, the excess water can leak out.
Quick Fix –
- If you suspect a refrigerant leak, call a professional for an inspection and recharge.
5. Faulty Condensate Pump
In some AC systems, a condensate pump helps remove water. If this pump fails, water can accumulate and leak.
Quick Fix –
- A broken pump needs to be repaired or replaced by an HVAC technician.
Bottom Line
A leaking AC can be a hassle, but with proper maintenance and quick action, you can keep your system running smoothly.