A split system air conditioner can leak water due to various reasons. Some common causes of water leakage from a split system air conditioner include:
Clogged condensate drain: The air conditioner's indoor unit contains a condensate drain that removes moisture from the air during the cooling process. If this drain becomes clogged with dirt, dust, or debris, it can cause water to back up and leak from the unit.
Improper installation: If the air conditioner was not installed correctly, it may not be level, causing water to accumulate and leak from the unit.
Frozen evaporator coil: If the evaporator coil inside the indoor unit becomes frozen, it can result in water leakage when the ice melts.
Low refrigerant levels: Low refrigerant levels can lead to the evaporator coil becoming too cold, resulting in condensation and water leakage.
Damaged or blocked drain pan: The drain pan, located beneath the indoor unit, is designed to catch condensation and direct it to the drain. If the pan is damaged or blocked, water may leak from the unit.
Airflow issues: Poor airflow over the evaporator coil can cause it to become too cold and freeze, leading to water leakage when it thaws.
To fix a split system air conditioner leaking water, you can try the following steps:
Check and clean the condensate drain: Locate the condensate drain line and check for any clogs. If you find debris or blockage, use a pipe cleaner or a mixture of vinegar and water to clean the drain.
Check the unit's installation: Ensure that the indoor unit is mounted level and that the condensate drain is properly positioned to allow water to flow freely.
Thaw the frozen evaporator coil: If you suspect the evaporator coil is frozen, turn off the air conditioner and let it thaw completely before turning it back on.
Check for refrigerant leaks: If you suspect low refrigerant levels, contact a qualified HVAC technician to inspect the system for leaks and recharge the refrigerant if necessary.
Inspect the drain pan: Examine the drain pan for cracks or damage. If the pan is broken, it may need to be replaced.
Improve airflow: Make sure there are no obstructions around the indoor unit that could restrict airflow. Clean or replace air filters regularly to ensure proper airflow.
If you're uncomfortable performing these steps yourself or if the issue persists, it's best to contact a professional HVAC technician to diagnose and repair the air conditioner properly. Regular maintenance and inspection can also help prevent water leakage issues in the future.