JOIN THE MVP PROGRAM for as little as **$9/month** Ask Us How! Read More

Skip navigation

Serving Orange County

- SINCE 1981 -

Serving Orange County

- SINCE 1981 -


Hours: Monday-Friday 7:30-5:30PM
Saturday: 8:00-1:00PM


Saddleback Plumbing Heating & Air Blog

Listen for These Air Conditioner Noises

Air conditioning issues can cause quite a bit of damage, especially if they’re left alone for long periods of time. It’s important that you be able to recognize the signs of an air conditioning problem, so that you can call for repairs as soon as possible. One of the most common signs of an air conditioner issue is strange noises coming from the system. Let’s take a look at some of the most common air conditioner noises that indicate a problem.


The air handler is the part of the air conditioner responsible for circulating air throughout the home during operation. In order to cope with the massive amount of friction that the air handler motor generates, the system is equipped with oiled bearings. These bearings help the motor run smoothly , but they do wear down over time. This causes the friction on the system to increase over time, producing a grinding sound. If you hear this sound, shut the air conditioner down and call for repairs as soon as possible. Otherwise, the air handler motor could overheat and burn out.


Hissing and other “wet” sounds coming from the air conditioner indicate that air bubbles have formed in the refrigerant line. Air conditioner recycle refrigerant back and forth during operation to remove heat from the home. The system is not designed to consume refrigerant, and the initial charge of refrigerant it gets upon installation should last for its entire lifetime. A refrigerant leak will drain the system of the fluid it needs to operate, causing a series of escalating problems culminating in a full breakdown. Call a professional if you hear any of these noises.

Saddleback Plumbing offers a full range of air conditioner repair services throughout Laguna Niguel, CA. Call today to schedule an appointment with one of our experts.

Comments are closed.

Let's talk about your project.