Is Your Air Conditioning Leaking Water? Here Are 8 Possible Reasons Why

An air conditioner (AC) keeps your house cool and comfortable by extracting heat and humidity from the air. As the AC extracts humidity from the air, it produces condensate, or water, in your furnace or air handler. This water is usually collected in a drain pan and transported through piping into your home’s drain system. 

As a side effect, a malfunction or sludge buildup could cause the piping to become clogged. When this happens, water returns to the drain pan inside your furnace or air handler. It can then reach your home. This is decidedly troublesome if your furnace or air handler is up in the attic or above a finished ceiling. 

In a majority of homes, building codes necessitate a secondary or safety drain pan that is installed underneath the furnace or air handler. This secondary drain pan has piping that is directed to the outside of the home. Most of the time, the outlet of the pipe is found above the outside of a window so it’s quickly noticeable if water starts draining from this pipe outlet. It is not normal for this to occur. If you see water spilling from piping on the outside of your home, this is usually evidence the primary drain is blocked and water is now draining from the safety drain pan. 

Here are the most frequent explanations for why your AC is leaking water and how to fix the issue. Some homes could also use a safety device that should automatically switch off your AC in the event the drain becomes clogged. In this case your system will stop cooling unless the drain is free of any obstructions. Regardless, if you spot water leaking, make sure to set your thermostat to “off” to prevent any other water damage and call a Service Experts Heating, Air Conditioning & Plumbing service provider to correct the issues. 

Leaking air conditioners often require professional repairs, which is why we’re here to assist you at Service Experts Heating, Air Conditioning & Plumbing. We happily deliver Expert air conditioning repair across the U.S., backed by a 100% Satisfaction Guarantee.* 

1. Condensate Drain Is Blocked 

When hot, humid air moves over the evaporator coil, water condenses on the cold metal surface. Ultimately, the water drains into a pan beneath the indoor coil inside the furnace or air handler. As the cooling sequence takes place, the condensate flows out of the pan and into drain piping before the pan fills up. 

However, mold, mineral deposits, dirt and other debris could clog the drain. This stops the water from moving away correctly. Trust the unclogging process to an Expert like Service Experts Heating, Air Conditioning & Plumbing to ensure it’s done properly and without causing further damage. Service Experts can also add a safety device that will automatically switch off your AC in the event the drain becomes blocked again later on, thus preventing water damage inside your home. Of course, routine maintenance on your AC will help keep your condensate drain clean and unhindered. 

2. Drain Line Is Disconnected 

While uncommon, the drain line connection to the drain pan can become loose or disconnected. This will sometimes be the cause if someone is working nearby the unit or when swapping out the air filter. AC leaks can occur when the drain line is disconnected from the pan. Take a look inside your AC to see if the drain line is still leading to the coil drain pan. If it is no longer connected, we encourage calling an HVAC technician to resolve this issue right away. Make an appointment with Service Experts Heating, Air Conditioning & Plumbing today. 

3. Condensate Pump Isn’t Working 

Some air conditioners rely on a condensate pump to adequately drain the water. These pumps are required when the home’s drain system is located above the AC unit. Even if the drain is free of obstructions, water can collect in the pan and leak out if the condensate pump is broken. First, determine that the pump is being powered. If that’s not the root cause, the AC leak might be due to a broken condensate pump. You should contact an air conditioning contractor like Service Experts Heating, Air Conditioning & Plumbing to resolve the issue. 

4. Evaporator Coil Is Dirty or Cracked 

If you see little drips rather than a more substantial puddle nearby the outside of your furnace or air handler, water could be bouncing off the evaporator coil rather than properly draining into the drain pan and condensate line. This can be the case if the coils are dirty, or if holes in the insulation protecting]1119] the coils redirect the water. The {smart approach to keep the evaporator coil from going downhill is to keep up with annual air conditioning maintenance using a Service Experts Heating, Air Conditioning & Plumbing membership. 

5. Low Refrigerant Level 

If you notice a leak and the AC isn’t cooling enough, the refrigerant level may be lacking because of a leak. Air conditioners count on refrigerant to produce cold air, so getting it inspected thoroughly during seasonal maintenance is very useful for the life span of your unit. Without adequate refrigerant, the evaporator coils could freeze over and cause the drain pan to overflow as they thaw. Contrary to some expectations, your AC does not need to be refilled unless there is a leak. The system is sealed and recharging is only necessary when a leak appears in the system. Call Service Experts Heating, Air Conditioning & Plumbing as soon as possible to resolve AC refrigerant issues quickly. 

6. Dirty Air Filter 

Your air conditioner’s filter should be changed regularly to encourage enough airflow. Without adequate ventilation, the evaporator coils could become too cold and freeze. The evaporator coils will then thaw, causing excess water to accumulate in the drain pan—possibly starting an overflow. To resolve this, try changing your air filter. If the problem lasts, more repairs might be needed. Thankfully, HVAC technicians from Service Experts Heating, Air Conditioning & Plumbing are happy to serve you, ensuring the problem gets solved. 

7. Outdoor Temperature Is Too Cold to Run AC 

Air conditioners are designed to run during warm weather. Starting your AC when outdoor temperatures are 60 degrees Fahrenheit or lower could cause the evaporator coils to freeze. Once thawed, the water and ice will drop off the evaporator coils and possibly result in an overflow because of ice blocking the drain pan opening. If a water leak persists, schedule a Service Experts Heating, Air Conditioning & Plumbing technician backed by our 100% service guarantee* to help solve the problem. 

8. Damaged Drip Pan 

Air conditioners are made to last, but nothing lasts forever. If you use an AC that is 12 years or older, the drip pan may be damaged or corroded due to normal use. If the drain pan has holes in it, a water leak may appear as condensate seeps directly through it. Service Experts Heating, Air Conditioning & Plumbing can replace the drain pan and ensure your AC gets back to working normally. 

Our Experts Can Meet All Your Air Conditioning Repair Needs 

Whatever the reason why your AC is leaking water, Service Experts Heating, Air Conditioning & Plumbing can help. We’ll troubleshoot and fix your air conditioner, getting it back to running again as soon as possible. 

Our technicians are well trained, knowledgeable and certified to perform quality work. We have full confidence in our repairs—in fact, we back up everything we perform with a one-year 100% Satisfaction Guarantee!* 

We’ll even advise signing up for a worry-free membership plan. This can help you catch AC issues, like water leaks, faster so you can avoid future breakdowns while keeping your house cooler. 

Contact us at 866-397-3787 to schedule your air conditioning appointment in North America today! 

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