When your air conditioner is working properly, your home will be cool and dry. A leaking air conditioner is annoying but isn’t necessarily harmful. It depends on whether it’s leaking water or refrigerant.

Water leaking from your air conditioner isn’t dangerous but can cause a lot of damage to your home. On the other hand, a coolant leak is dangerous for you and the environment. In either case, fixing a leak will require professional air conditioning repair.

In most cases, you can stop your air conditioner from leaking by requesting annual air conditioning maintenance. During your appointment, an HVAC technician will closely check your system for problems and clean it. This service helps ensure worry-free cooling and may even boost energy efficiency.

Learn more about why your air conditioner is leaking and how you can prevent it from happening in the future.

Why Is My Air Conditioner Leaking Water?

Water is a natural result of air conditioning. Your air conditioner has two units, one outside and one inside. The indoor unit has an evaporator coil that cools warm air as it blows over it. Condensation forms as the air cools, drips into a drain pan and drains out of your house through a condensate drain line.

Because of the condensation process, having water leak is a common problem. We often get calls about an air conditioner leaking water inside or an air conditioner leaking water outside. Here’s why it occurs:

Drain Line Is Plugged

Over time, mold can clog the condensate drain line. This can result in water backing up inside your home. Our Diedrick's Heating and Air Conditioning professionals can break up clogs and get water draining again smoothly. Reach us at 920-833-7967 for help.

Air Filter Needs to Be Changed

We recommend changing flat filters once a month and pleated filters every three months.

Replacing your air filter is critical for:

  • Indoor air quality
  • Energy efficiency
  • Reducing breakdowns
  • Lengthening your air conditioner’s lifetime

A dirty air filter can restrict airflow, make the coil very cold and freeze it. As the coil defrosts, it can make the drain pan overflow. We recommend checking your air filter if you haven’t changed it lately and your air conditioner is leaking water indoors.

If this doesn’t resolve the issue, your drain pan might be rusty or have a broken condensate pump. Replacing your pan or pump requires a pro, so contact us at 920-833-7967 for assistance.

Why Is the Air Conditioning Leaking Freon?

Your air conditioner relies