Skip to content
Smart AC Solutions
  • CategoriesExpand
    • AC Troubleshooting
    • Air ConditionerExpand
      • Portable Air Conditioners
      • Room Air Conditioners
      • Split System Air Conditioners
      • Window Air Conditioners
      • Reviews & Prices
    • Thermostat Solutions
    • Calculator
  • Request HVAC Service
  • Join Our Pro NetworkExpand
    • HVAC BusinessesExpand
      • Residential
      • Commercial
      • Emergency Services
    • Add Business
  • Register
  • Login
  • Forgot Password?
Smart AC Solutions
Air Conditioner

Air Conditioner Making Pulsating Noise [SOLVED]

ByRalph P. Sita Updated onFebruary 5, 2025

Air conditioners often produce a pulsating noise during operation, which could indicate underlying issues that need attention. This sound is frequently caused by an unbalanced fan blade or worn-out motor bearings, both of which disrupt the unit’s function. Additionally, airflow restrictions due to dirty filters, coil fins, condenser coils, or evaporator coils can exacerbate the problem, leading to increased noise levels.

To address these concerns effectively, it’s essential to inspect and clean all relevant components, ensuring that filters and coils are free of debris. If these steps do not resolve the issue, it may be necessary to replace the fan blades or motor altogether to restore quiet and efficient operation. Promptly identifying and fixing these causes not only enhances your air conditioner’s performance but also helps to prevent more costly repairs down the line. For expert assistance, consider consulting a professional HVAC technician.

Air Conditioner Making Pulsating Noise

Page Contents

Toggle
  • Why is My Ac Unit Making a Weird Noise?
  • What Does a Bad Ac Compressor Sound Like?
  • Air Conditioner Making Pulsating Noise When off
  • Air Conditioner Noisy and Loud
  • Window Ac Pulsating Noise
    • Related Articles

Why is My Ac Unit Making a Weird Noise?

If you are hearing an unusual noise coming from your AC unit, it can be a sign that something is wrong and needs to be addressed.

This could indicate anything from a lack of maintenance to a more serious issue like an electrical problem or even worn-out parts in need of replacement.

It’s important to identify the source of the sound and address it as soon as possible before it causes further damage to your system.

If you hear any rattling noises, for example, this may mean that some screws or bolts have come loose, causing parts inside the unit to move around and make contact with each other.

If any grinding noise comes from your AC unit, it likely indicates that one of its internal components has worn down over time and needs repair or replacement.

Lastly, if there is a squealing sound emanating from the outdoor part of your AC system.

Why is My Ac Unit Making a Weird Noise

This generally means that either the condenser fan motor bearings have gone bad or that there is debris stuck in between them which requires immediate attention.

Taking care of these problems quickly will help ensure optimal performance levels while also avoiding expensive repairs down the line.

What Does a Bad Ac Compressor Sound Like?

It is not always easy to tell when an AC compressor has gone bad, but one of the most common indications is a strange or loud sound coming from it.

A bad AC compressor can make a variety of different noises, such as grinding, buzzing, clicking and squealing.

These sounds are usually more intense than normal and may be accompanied by vibration.

Additionally, if you notice that your AC system cycles on and off frequently without cooling the air properly then this could also be a sign of a faulty compressor.

If any of these issues occur with your air conditioning unit, then it’s important to contact an experienced HVAC technician for assistance as soon as possible to avoid further damage or expensive repairs down the line.

Air Conditioner Making Pulsating Noise When off

If your air conditioner is making a pulsating noise even when it’s off, this could be due to an issue with the compressor.

Common causes of such noises include loose parts, faulty wiring, or a malfunctioning capacitor.

If the noise persists after troubleshooting and maintenance have been done, you may need to call in a professional HVAC technician for further assistance.

Air Conditioner Noisy and Loud

Window Ac Pulsating Noise

Window air conditioners are a convenient and cost-effective way to cool down your home during the summer months.

Unfortunately, many of these units can make an irritating pulsating noise when running.

This sound is usually caused by an imbalance in the blades of the fan motor, meaning that the unit needs to be serviced or replaced in order to reduce or eliminate this issue.

In some cases, simply tightening any loose screws on the unit can help alleviate this annoying sound as well.

5/5 - (2 votes)
Ralph P. Sita
Author: Ralph P. Sita

Ralph P. Sita is a seasoned professional with deep roots in both the HVAC and tech industries. His family’s business, Ralph P. Sita, Inc., is a locally owned and operated HVAC contractor with over 42 years of experience, serving the DC, Maryland, and Virginia areas. The company specializes in residential, commercial, and industrial heating, ventilation, and air conditioning services, offering everything from installation and maintenance to custom ductwork and indoor air quality solutions -www.ralphpsita.com. A former CPA, he spent the last decade as co-founder and co-CEO at Cybrary, a leading platform for cybersecurity and IT training. Cybrary became the largest, most well-known cybersecurity training businesses in the industry under his leadership. Smart AC Solutions is an opportunity to give back to the HVAC community by providing reliable, actionable information on all things heating and cooling.

Related Articles:

  1. Why is My Air Conditioner Making a Humming Noise?
  2. Why is My Air Conditioner Making a Rattling Noise
  3. AC Making Hissing Noise And Not Cooling | What to Do?
  4. Ac Making Noise When off [We Have a Fix]
Ralph P. Sita

Ralph P. Sita is a seasoned professional with deep roots in both the HVAC and tech industries. His family’s business, Ralph P. Sita, Inc., is a locally owned and operated HVAC contractor with over 42 years of experience, serving the DC, Maryland, and Virginia areas. The company specializes in residential, commercial, and industrial heating, ventilation, and air conditioning services, offering everything from installation and maintenance to custom ductwork and indoor air quality solutions -www.ralphpsita.com.

A former CPA, he spent the last decade as co-founder and co-CEO at Cybrary, a leading platform for cybersecurity and IT training. Cybrary became the largest, most well-known cybersecurity training businesses in the industry under his leadership.

Smart AC Solutions is an opportunity to give back to the HVAC community by providing reliable, actionable information on all things heating and cooling.

Linkedin

Try our new Smart AC Solutions GPT

Description of Smart AC Solutions GPT and link to access.

  • Air Conditioner Troubleshooting: 10 Common Issues and Solutions
    by alovell
  • Central Heat and Air Unit Not Working? Troubleshooting Guide
    by alovell
  • HVAC Moisture Control Issues: Causes and Effective Solutions
    by alovell
  • Common Problems with Ducted Air Conditioning and How to Fix Them
    by alovell
  • Common Issues with Two-Stage Air Conditioners and How to Fix Them
    by alovell
  • Common Central Air Conditioning Malfunctions and How to Fix Them
    by alovell

Sites we love:
TrainACE

Facebook Twitter Pinterest YouTube

SmartACSolutions is your go-to source for the latest in heating and air conditioning news, tips, and expert advice.

  • About Us
  • Contact Us
  • Disclaimer
  • Privacy Policy
  • Sitemap

© 2025 Smart AC Solutions । DMCA Protected

SmartACSolutions.com is a property of FieldBin Inc.

Change Location
Find awesome listings near you!
  • Categories
    • AC Troubleshooting
    • Air Conditioner
      • Portable Air Conditioners
      • Room Air Conditioners
      • Split System Air Conditioners
      • Window Air Conditioners
      • Reviews & Prices
    • Thermostat Solutions
    • Calculator
  • Request HVAC Service
  • Join Our Pro Network
    • HVAC Businesses
      • Residential
      • Commercial
      • Emergency Services
    • Add Business
  • Register
  • Login
  • Forgot Password?