Understanding AC Leaks

Water leaking from your AC unit is never a good sign. Let's dive into what causes your AC to leak and what steps you can take to address it.

Common Causes of AC Leaks

1. Clogged Condensate Drain Line

A clogged condensate drain line is the most common cause of AC leaks. Over time, dirt and dust can accumulate in the drain line, mixing with moisture and causing blockages. This blockage prevents condensation from draining properly, leading to overflow and water leakage from the AC unit.

2. Insufficient Refrigerant

Low refrigerant levels can lead to pressure drops in the AC unit, causing refrigerant leaks. This can result in reduced cooling capacity and freezing of the evaporator coils. When the frozen coils thaw, they can cause water leakage from the AC unit.

3. Dirty Air Filter

A dirty air filter can impede airflow to the evaporator coils, causing them to freeze. Without proper airflow, the coils become too cold and freeze over, leading to water leakage from the AC unit.

4. Damaged Drain Pan

Older AC units may have damaged or rusted drain pans. Cracked drain pans can be repaired using sealants, but rusted drain pans may require more extensive repairs or replacement. Rust holes in the drain pan can allow water to leak from the AC unit.

Addressing AC Leaks

If you notice water leaking from your AC unit, here are some steps you can take to address the issue:

• Clear the Condensate Drain Line: If the condensate drain line is clogged, clear it using a wet/dry vacuum or a stiff brush. Regular maintenance of the drain line can prevent future blockages.

• Check Refrigerant Levels: If you suspect low refrigerant levels, contact a professional HVAC technician to inspect and recharge the refrigerant in your AC unit.

• Replace Air Filters: Regularly replace dirty air filters to ensure proper airflow to the evaporator coils and prevent freezing.

• Inspect and Repair Drain Pan: Check the drain pan for damage or rust, and repair or replace it as needed to prevent water leakage.

Conclusion

Water leakage from your AC unit can indicate various underlying issues that require attention. By understanding the common causes of AC leaks and taking proactive steps to address them, you can prevent further damage to your AC unit and ensure efficient cooling performance. If you need assistance with diagnosing or repairing AC leaks, don't hesitate to contact Brothers HVAC. Our team of experienced technicians is here to help keep your home comfortable and your AC unit running smoothly. Schedule a service today and let us address any concerns with your AC system.