Your air conditioner leaks water because of a clogged condensation drain, frozen evaporator coils, or low refrigerant levels. These issues prevent proper moisture removal during cooling.
Air conditioners remove humidity from indoor air by cooling it below the dew point. This process condenses moisture into water, which typically drains away through a condensation drain line. When this system fails, water leaks occur.
The most common reasons for AC water leaks include:
For a clogged drain line, unplug the unit and locate the drain line near the outdoor condenser. Use a wet/dry vacuum to clear the blockage. If the issue persists, contact a professional.
To address frozen coils, turn off the AC and let the ice melt. Replace dirty air filters and check refrigerant levels. If refrigerant is low, schedule a service appointment.
Inspect the drain pan for cracks or misalignment. If damaged, replace it or secure it properly.
If you've tried basic fixes and the leak continues, or if you suspect refrigerant issues, contact an HVAC technician. Low refrigerant often indicates a leak in the system, requiring professional repair.
Install a safety float switch to shut off the AC if water backs up. Keep the area around the unit clean and free of debris. Consider upgrading to a high-efficiency AC with better drainage systems.