Why Is My Air Conditioner Leaking?

Tori Klein • January 17, 2022

Fixing an HVAC System Leak

Picture of a mop and bucket leaning up against a couch.

When the temperature level is in the high 80s and 90s for an extended period of time, your HVAC system is required to function using more energy and at higher temperatures which can increase the occurrence of issues such as your system leaking water. Let's talk about what can cause an HVAC system to leak and what you'll need to do to fix it.



Where Does the Water Come From?

HVAC systems work by drawing warm air in and passing it over an evaporator coil to cool it. This process generates condensation, which can be sped up even more by ultra-hot, moist temperatures. In a well-functioning HVAC, this moisture comes under the drain pan and then exits through a condensate drain line where it can vaporize outside.



Blockages in the Condensate Drainpipe Line or Drain Frying Pan

If either the drain pan or condensate drain line is obstructed or dirty, they won't be able to properly funnel the condensation droplets from the system. This can cause water to collect in the drain pan and ultimately splash out. If the water blocks particular HVAC components, it can cause the unit to freeze up and eventually damage the HVAC motor.



A Stopped Up or Dirty Air Filter

Considering that HVAC systems absorb air from the outside, an air filter is essential to safeguard the internal parts from damages and to avoid distributing particle-filled air in your home. When your air filter is filled with debris, it can block the intake of the evaporator coil, making it ice up. When your coils warm back up, the ice will begin to thaw causing an excess of water to flow from your system.



When Replacement May Be Required

Another typical cause of HVAC leakage is low cooling agent. HVACS are closed systems, which suggests they need to preserve a constant pressure level. When there's a cooling agent leakage, the pressure increases which can freeze the evaporator coil. Although some leaks are repairable, HVAC systems that were manufactured over a decade ago need a kind of refrigerant that is no longer being manufactured. Without the capability to recharge these units with brand-new refrigerant, a replacement will eventually be needed.


If you need assistance with your leaking system, the help of Best Owner Direct HVAC is the best solution! Our reliable and friendly staff will identify and resolve your HVAC issues in no time. Call us today to get more information regarding the services we provide.

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