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Why Is My A/C Unit Leaking Water?

Why Is My A/C Unit Leaking Water?

Posted by
Ed Miller on Mon, May 18, 2015

Summer is approaching! It’s an exciting time of year as you anticipate longer, warmer days and special time with family and friends. Although you’ll enjoy every moment, deep down you know it’s going to fly by in a blink. As you prepare for summer, don’t forget about your old air conditioner – it’s about to be employed full time!

It’s fairly common for your air conditioner unit to leak throughout the hot summer months. The trick for homeowners is to know when it’s normal and when the unit needs some professional attention. The causes of a dripping A/C unit are varied. While some leaking water needs immediate attention, other instances are normal results of hot temps and other factors.


The evaporator coil within your A/C unit works to dehumidify the air within your home on those sultry days that seem to last longer than a mere 24 hours. As your A/C pulls all that hot air, it’s natural for condensation to build-up around it, causing a few drips here and there. That moisture should empty into a drain pan where it will eventually drain. Sometimes the pan gets a little too full on really hot days. This is completely normal and doesn’t signal a problem with air conditioner leaking. However, if you notice the leakage occurring on a regular basis, it’s time to seek professional help.

Dirty Filter

Dust, debris, pollen and air pollutants quickly build up on your air conditioner’s filter. When the filter becomes clogged, it leads to moisture build-up on the evaporator coil which quickly forms into ice. The melting ice then spills over the edges of the drain pan, causing air conditioner leaking. To prevent leakage due to a dirty filter, check and change your A/C filter regularly. If you know how, you can change the filter yourself. Otherwise, call your A/C service professional.

Old Insulation

Your air conditioner consists of copper pipes connecting the outside compressor to the inside A/C unit. Condensation can occur as cold refrigerant runs through the warm pipes if they are improperly insulated. Sometimes older insulation begins to deteriorate, causing the condensation to drip water out of your A/C unit. If this is the case in your home, it’s important to call a professional to re-insulate those pipes.

Clogged Drain Hole

The drain that removes water from the air conditioning unit can sometimes clog with debris. Clear any blockage and the leaking should stop.

Improper Installation

If an air conditioner is improperly installed, it can become unlevel and cause excess water to leak. Check your unit to make sure it’s level.

When To Call a Professional

Although a leaking A/C unit can be cause for alarm, sometimes it’s a natural thing that will pass as fast as the hot weather. If you have a concern, your best bet is to call on a professional service provider to come and take a look.

Contact Snyder Heating & Air Conditioning and we’ll give you the information necessary to keep your A/C running smoothly and efficiently all summer.

where you’ll find snyder

Snyder Air Conditioning, Plumbing and Electric serves families across Florida. You'll find our technicians are just a short phone call away in neighborhoods throughout these counties:


  • Alachua
  • Baker
  • Clay
  • Duval
  • Flagler
  • Nassau
  • St. Johns


  • Broward
  • Martin
  • Miami-Dade
  • Palm Beach
  • St. Lucie

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-Christy Cormier

The service from Sam and Chris was excellent! They were very knowledgeable and professional. They were able to answer all of my questions and completed all of my electrical issues. I will definitely use them again for future jobs. Thank you!

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From the get go I could tell that the Snyder employees were truly professionals and didn’t push to make sales like other companies I’ve talked to my whole life. They took the time to explain so that I could make a decision. The installers and later the duct cleaners were very respectful during their work here. Thank you.

-Mike Daniels

Snyder Heating and AC is dependable, always on time and techs have always been courteous and knowledgeable. Emanuel was a great addition to the company. He was friendly and knew what he was doing. Thank you for great service.

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Snyder came in and did a total overhaul of our duct system. They had a great knowledge of what to do to make our home so comfortable! The technicians were all so professional and took great care of us! We’re so thankful for their expertise. Great and easy communication with the call center. We will definitely use them again!

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Snyder provided an amazing experience from start to finish. Most of us dread getting estimates with pressuring salespeople. Erik was a great guy, explained all my options and didn’t try to pressure me to act quickly! Justin followed up with my husband and I to offer further assistance in our decision. Again, no pressure, just helped with our follow up questions.

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Snyder was easy to get in contact with and had availability the next day. Clint came out and needed some parts so had to reschedule us for the next day for installation. He did a great job converting our old 3 knob shower to one. Looks great! Professional and courteous. 100% recommend this company, especially Clint.

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