The problem with babies, dogs, and cats is that they can make noise but can’t tell us why. It’s clear they’re unhappy, but what’s their problem?

Noises from appliances aren’t that different. Odd sounds are a cry for help, but it’s hard to tell what needs to be looked at.

Do you need a full AC replacement? Is it a small problem with an internal component? Knowing what sounds indicate helps you know what to do.

Is your AC making a hissing noise? Read on to learn a few explanations.

Clogged Air Filters

29% of Americans never change their air filters. 31% only change it every few months. 

A dirty filter restricts airflow. This can create a hissing sound as the air forces its way through the debris. 

Leaky Ducts

Ducts can also get clogged by dirt, but that’s not their only possible issue. They get torn or crushed over time and leak out cool air.

Do you hear hissing while you’re inside? Does it come from the same side of the yard where your condenser is installed? Does your home heat unevenly? Have you seen a recent increase in your energy bills? 

If the answer to all of these questions is yes, then you need professional AC duct repair. Have your ducts replaced every 10-15 years.

Refrigerant Leaks

One of the first signs of an AC refrigerant leak is a hissing noise. It can be caused by:

  • Corrosion in the copper pipes
  • Damage to the unit
  • Improper installation
  • Wear and tear from usage

This is an emergency, so start looking for “AC repair near me” as soon as possible.  A lack of refrigerant keeps your system from running properly. You’ll notice the difference now and in the future. The refrigerant itself is also highly toxic and flammable.

High Compressor Pressure

The compressor pushes refrigerant through your system, creating a buildup of pressure. You may notice hissing or screeching in the outdoor unit if the pressure becomes too high.

The noise often starts when the system turns on and lasts for 10-15 seconds. The system may also start and stop more than usual.

Faulty Parts

Problems with one of the internal parts are the most all-purpose reason for an AC making a hissing noise. There could be problems with the fan belts, compressors, or motors, to name a few.

Following a regular AC maintenance checklist helps these parts last longer. You’ll enjoy more comfortable air in your home. It’ll also save you money on repairs and replacements.

Make sure to also add a professional AC tune-up to the schedule. They can tighten or clean parts that aren’t working at their best and identify any that need replacing.

Who Can Quiet an AC Making a Hissing Noise?

When looking through all the AC companies in the Texas area, choose the eagle.

Texas Eagle AC and Heating has over 15 years of experience specializing in Carrier models. We use a team of licensed and bonded technicians who are available 24/7. We’re ready to handle any issue you have, from an AC making a hissing noise to a full system replacement.

Get a free AC repair estimate to see how we can fix your noisy AC today.

(713) 497-1145