4 Common Problems That Create Air Conditioner Leaks

Construction & Contractors Blog

The last thing a homeowner wants to see is a puddle of water anywhere near their AC unit. The first step in resolving this issue is figuring out why your unit is leaking water in the first place. It could be an issue with the drain pan, the filter, or even the condensate line.

Possible Problem #1: Overflow or Drain Pan Cracks

The drain pan can become cracked or corroded over time, which will result in a water leak. This part can be easily inspected by the user with a simple flashlight. Small cracks can be repaired with epoxy, but experts agree, it is usually best to just replace a broken drain pan.

Possible Problem #2: Clogged or Dirty Filter

If the air filter becomes clogged or dirty, it can cause ice to form on the coils. When the ice thaws, it overfills the drain pan, and causes a leak. To ensure the filter is always clean, it is best to inspect it monthly during the cooling season, and replace it if it looks dirty.

Possible Problem #3: Clogged Condensate Line

The condensate line carries the water from the drain pan to outside, and is the most common source of leaks. The water that passes through this line is often stagnant, causing algae, dirt, and mold to build up. If it is clogged, the blockage can be removed with a wet/dry vacuum. This line can be kept clear by pouring chlorine bleach through monthly.

Possible Problem #4: Broken Condensate Pump

This is the pump that pushes water outside if the main condenser is located in a basement. If this pump stops working, it will need serviced by a technician. The technician will be able to help decide if the pump can be repaired or needs replaced.

Possible Problem #4: Low Refrigerant

Low refrigerant, or Freon, can be caused by a coolant leak. As the pressure of the available Freon gets lower, the temperature of the condenser gets lower, causing it to ice up. If the condenser is iced up, turn off the unit, then turn the fan to on. This should allow the unit to thaw at a rate the drain pan can keep up with, stopping further leaks.

A Freon leak is not user serviceable, and should always be a call to the technician. Freon is bad for the environment in large quantities. Putting off a Freon leak repair can also lead to a costlier fix down the line.

As you can see, a water leak in your AC system is not the end of the world. As soon as you find the problem, you should have no trouble fixing it. Contact a repair contractor, like Spell's Mechanical Services, for more help.


29 February 2016

 Pool Care Perfection

Before you decide on adding a pool to your backyard, you need to decide how you’re going to take care of the pool once it’s in. This is a very important part of the pool addition process, because you’re going to spend a lot more time on the upkeep of the pool than on the installation, and it’s important to have a plan in place. After years of pool ownership, I’ve learned a lot about how to take care of a pool, what you can do yourself, and what to leave to the pool professionals. I started this blog to help others learn what they need to know about pool care and maintenance. Take a deep breath and dive right in!