siren 24/7 Emergency Service

Get 24/7 emergency service from Robert B. Payne. Call 540-373-5876 now for urgent service.

5 Reasons Your Air Conditioning Makes Clicking Noise

Summary

  • Identify 5 reasons your AC makes clicking noises.
  • Learn how to troubleshoot and fix common AC issues.
  • Expert HVAC repair services in Fredericksburg, VA.

Anyone with a heating or cooling system knows that if they hear a whirring noise or even a slight hum, there’s no cause for concern. However, if your air conditioning makes clicking noises constantly or is loud enough to wake you out of your dreams, it is a telltale sign that something is wrong and needs fixing.

Air Conditioning Makes Clicking Noise

There are a few common reasons an air conditioning system may make a clicking noise, including loose parts in the compressor, electrical issues, thermostat problems, or an issue with the fan unit.

Let’s explore why your air conditioning is making clicking noise.

1. Could Loose Parts Be Making My AC Click?

If clicking noises are coming from outside the house, your compressor may be the reason. Sometimes, clicking noises stem from a loose bolt. Clicking noises from your air conditioning could be a refrigerant tube loose within the compressor, causing a soft clicking noise. Luckily enough, if this is the reason that your air conditioner is making clicking sounds, then it is not a cause for immediate concern. It is worth keeping an eye on, though.

2. Are Electrical Problems Causing the Clicking Sound?

Did you know that most air conditioning systems click once when they startup? Yeah, it’s completely normal. However, if your air conditioning clicks constantly but won’t turn on, you most likely have an electrical problem having to do with your capacitors. When the air conditioning starts up, the click is the thermostat sending a signal to the capacitors to get things started. The problem comes when the thermostat can’t communicate with the capacitors, probably due to shorted wires or a faulty capacitor.

3. Is the Fan Unit Responsible for the Clicking Noise?

The first thing (but not the most obvious thing) to check for is the fan unit inside your air conditioning. The clicking noise could be an obstructed or slightly bent fan blade hitting something inside the air handler repeatedly. Fan problems usually occur as a result of wear and tear or a lack of proper maintenance.

4. Can a Faulty Thermostat Make My AC Click?

Clicking noises may also come from a faulty thermostat. If the thermostat is experiencing wear and tear, it may cause irregular clicking noises. It is important to have your thermostat checked by an experienced HVAC technician if you hear clicking coming from it. Your thermostat is an important part of your air conditioning system and should be taken seriously. If it is not working properly, it can lead to other air conditioning problems as well since the unit will not receive the correct signals.

5. Are Mechanical Problems Behind the Clicking Sounds?

If your air conditioner is fairly old, parts may start to break down. This could mean loose parts and clicking noises. Some of the parts that may be affected are the piston, valve, and belt. If you suspect any kind of mechanical problem with your system, it is important to contact a professional HVAC technician right away.

No matter what is causing your air conditioner to make clicking noise, it is not something to ignore – it will only get worse if left unchecked. It is important to contact an experienced HVAC technician who can diagnose and fix the issue. Don’t wait until it’s too late; get your air conditioner checked out today! 

Do You Need an Air Conditioner in Virginia?

There are many reasons why you might need an air conditioner in your home. Air conditioners can help keep the temperature comfortable during summer months and provide relief from heat-related illnesses such as heat stroke or exhaustion. They also reduce indoor humidity levels, making it easier to breathe for those who suffer from allergies or asthma. Additionally, air conditioning units can also help improve indoor air quality. They do this by filtering out pollen, dust mites, and other allergens from the air. With all these benefits, it’s no wonder why so many people are finding themselves needing an air conditioner in their homes.

‎A quality air conditioning unit is a valuable investment for your home – not only does it provide comfort and protection from the heat, but it can also help you save money in the long run. Having your air conditioner regularly serviced and maintained can help reduce energy consumption and increase its lifespan. A properly functioning air conditioning system will provide an even temperature throughout your home and keep you and your family happy all summer long! ‎ Contact us today to get started with an AC installation. ‎ ‎

Air Conditioning Repair in The Fredericksburg Area

Clicking noises are often harmless, but you don’t want to incur hefty electrical damage to your AC unit and harm yourself trying to replicate DIY videos on YouTube. Save yourself some time and money by contacting the professionals at Robert B. Payne Schedule an appointment today by calling 540-373-5876.

Clicking Air Conditioner FAQ


A clicking noise often indicates issues like loose parts, electrical problems, or fan obstructions. It’s best to have a professional inspect it.


While it might still operate, using an AC with clicking noises can lead to further damage. It’s advisable to turn it off and seek professional help.


Some minor issues can be addressed by checking for visible obstructions. However, for electrical or internal problems, professional repair is recommended.


Repair costs vary based on the issue’s severity. Simple fixes might be inexpensive, but complex problems could be costlier. A professional assessment provides an accurate estimate.

Financing Badge

Easy Financing

Same-Day Approval

Request Service

Energy Savings Agreement

Sign Up for the Energy Savings Agreement

Streamlined HVAC Maintenance & Member-Exclusive Perks
  • Annual heating and air conditioning tune-ups
  • 15% off parts, labor, and overtime costs
  • Priority service
  • Loyalty credits
  • And more