5 Reasons Why Your Ac Is Leaking Water Inside Your Home

By | September 25, 2017

Just imagine! During a summer afternoon, you are comfortably nestled inside your home when a large drop of water suddenly falls on your face! You look up and see the AC vent in the ceiling is leaking water. You need not be an engineer to interpret it as a clear warning sign. And if you are living in Florida, then you must be well aware how important it is to have your AC running smoothly throughout the summer.  In Florida, the summer heat wanes due to heavy rain in the middle of the year. With rain, come further condensation problems in indoor AC units. The cities like Largo in Tampa Bay area witness heavy rainfall in August and September. AC repair services in Largo witness spike in house calls during this time of the year, and most of them  have at least one complaint in common –, they all have water leaking from their AC vents. When this happens, turn off the AC and give a call to your nearest AC repair company. However, on top of the professional assistance, you should also learn the probable causes that make your AC leak. The knowledge will help you prevent the reappearance of the problem in future and ensure that your AC stays in good health for the long run.

  1. Condensate Drain Line Clog


A clogged condensate drain line is one of the major causes of water leaking from your indoor AC vents and units. You have to take a close look at the condenser unit (the outdoor unit) and check if the drip pan is overflowing or full. This is a telltale sign that you have your condensate drain line clogged with dirt and debris. The clogged drain is pushing the condensate water back into the collector tray. And, when this tray overflows, water drips through AC vents. Sometimes, an improperly installed drain line can get disconnected, and this makes water leak through air vents.



  1. Low Refrigerant


If your AC is running low on refrigerant, then the lower gas pressure inside the AC system will make the evaporator coil to freeze while the machine is running. But, the moment the engine shuts off, the ice will melt and leak through the air vent. This will eventually ruin your ceiling and the air conditioning system. You should always ensure that your AC is never running low on refrigerant, or there is any coolant leak in your AC. Any hissing or bubbling noise coming from your AC unit may be an indication that your AC is leaking refrigerant.


  1. Dirty Air Filter


A dirty air filter blocks the cool air from flowing over the evaporator coils. This will freeze the evaporator coil when the machine is on, but when the machine is off, the ice over the coil will melt, and water will start dripping through the vent. You should check your air filter, and if it appears to be dirty, you should change it immediately.

Depending on the season, you should be changing filters every 1-3 months.


  1. Poor Insulation


If the AC duct is not properly insulated and has leaks in many places, then cool air passing through the duct will leak and condensate at those locations. Most AC ducts pass through the attic or wall. The leaked water in such places will ruin the wall and the materials of the roofing.


Tip: Home improvement store in your locality have ductwork patch kit available. You can ask your service person about the best possible solution to combat this problem.


  1. Broken Condensate Pump


Sometimes the problem arises due to the broken condensate pump. If the float switch inside the condensation pump gives out, then the pump will not turn on and drain the excess water. It will then be collected inside the water pan in your AC. The water accumulated in the collector pan will eventually leak through vents.



The five reasons mentioned above are often the primary causes of water leakage from your AC vents. The reputed AC repairing services in your locality at Largo can quickly solve these issues for you. For smoother running of your air conditioning system, keep checking these points from time to time. Your careful monitoring can prevent your AC unit from breaking down suddenly.