Why Is My Air Conditioner Is Leaking Water?.
Why Is My Air Conditioner Is Leaking Water?.

Why Is My Air Conditioner Is Leaking Water?.

Why Is My Air Conditioner Is Leaking Water?

The summer is quickly approaching, which means, it’s that time to operate the air conditioning system. However, during the process of operation, you notice water coming from the system.

Many customers may ask, why is their air conditioner leaking water?. So before you pick up the phone to call your locate HVAC contractor, here are some things you can check.

1. Clogged Filters
2. Frozen Evaporator Coils
3. Clogged Condensate Drain Line.

Clogged Filters

  Furnace Filter installation

Customers should always check to see if the system air filter is dirty and needs replacing. We have seen this too often with customers not keeping up on their system maintenance. In addition, this not only blocks the airflow from passing through the coil but also causes the air conditioner coil to freeze up. This may lead to a bigger problem which could lead to higher repairing costs. Therefore, we recommend customers first take a look at their system filter and replace it if need be.

Frozen Evaporator Coils

Frozen Evaporator Coil

In the event of a frozen evaporator coil, we would first look at the condition of the air filter. However, not in all cases, this is the problem, but those would require us to do a more in-depth diagnostic. So when your air filter is clogged, air won’t be able to pass through as easily, which leads up to the evaporator coils freezing up. Since refrigerant flows through your evaporator coils require proper airflow to absorb heat, therefore, it relies on proper airflow to maintain a cold and freeze-free evaporator coil.

 Clogged Condensate Drain Line.

Drain Trap


The condensate line can become blocked with fungi, algae, and debris. It’s necessary to have the drain line check every time during system maintenance. You can call a professional or try to do it yourself. Here are some tips on clearing the drain line. ( This may require a coupling and cutting of the drain pipe)

  1. Locate the drain line on the air handler and take apart one side.
  2. Used something to tap on the drain line which will loosen the particles, before pouring water into the drain pan.
  3. If there are any traps in the drain line, that’s most likely where the line is plugged, so ensure proper flush.

If you are experiencing any problems with your air conditioner, don’t hesitate to give us a call. Here at Knowledge HVAC & Refrigeration, our experts are here to help. We specialize in everything air conditioner, whether it’s air conditioner installation, repair, maintenance or replacement. Our team got you covered. Call 778-522-5669.