Why Is My A/C Making Weird Noises?


Why Is My A/C Making Weird Noises?

Why Is My AC Making Weird Noises

When the hot summer months decide to come around, your home air conditioning system is an essential part of your family's comfort. Unfortunately, unexpected noises can happen, and being able to identify them early can help you to avoid costly repairs in the long run. Start by taking a second to identify the noise that your HVAC system is making.

1. Banging

If you notice a banging noise coming from your air conditioning system, it's a likely indication that there is a broken or loose part. This could be a crankshaft, piston pin, or even a connecting rod. It's best to shut your HVAC system off and contact an HVAC professional to evaluate the noise.

2. Clanking

When you hear your HVAC system make a clanking noise, it's likely that a part is loose or out of balance. It's not uncommon for an indoor blower fan to become unbalanced and hit other parts. When this noise occurs, it's best to shut off your HVAC system and contact an HVAC professional for further assistance with the issue.

3. Clicking

The electrical components of your air conditioning system will click when they turn on and off. If you hear a clicking noise while your system is running, it's an indication that something is wrong. The most likely culprit is a defective thermostat. However, it's best to contact an HVAC professional for a whole HVAC system evaluation.

4. Buzzing

A distinctive buzzing noise coming from your air conditioning unit can indicate many different things. There could be loose parts, loose debris in your HVAC unit, a refrigerant leak, or even a soon-to-be-failing part. You may want to contact an HVAC professional to identify the source of the buzzing noise.

5. Rattling

Rattling is one of those noises that can mean a variety of issues with your air conditioning system. It could be as simple as debris caught inside of your system or a loose bolt. Or, it could be as serious as a deteriorating air conditioning system. An HVAC professional should be able to listen to the rattling noise to locate where it's coming from and what's causing it.

6. Screaming

A high-pitched screaming noise coming from your air conditioning system is likely a refrigerant leak. It's vital that you immediately shut off your air conditioning system and contact an HVAC professional right away. Your HVAC professional may be able to identify a refrigerant leak or an internal pressure problem with the compressor in your air conditioning system.

7. Pulsating

While a slight pulsating noise from your air conditioning system is completely natural, it can sometimes indicate a problem. If the outdoor unit is creating a pulsating noise that you can hear clearly when inside of your home, it's likely a problem with a loose part in your condenser unit. You should contact an HVAC professional for assistance with this noise.

8. Humming

A humming noise from your HVAC system isn't usually a sign of anything overly serious. Rather, a humming noise tends to indicate that there's a part working itself loose inside of your air conditioning system. While you can still run your HVAC system, it's a good idea to contact an HVAC professional. They can evaluate the problem and fix it before it gets worse and causes costly damage to your air conditioning system.

9. Squealing

A squealing noise from your air conditioning system is typically a result of the blower fan. As the fan motor starts to wear out, it will start to squeal. It's best to have your local HVAC professional evaluate the fan and determine if a replacement motor is necessary for your air conditioning system.

Contact Us Today

If you're experiencing a weird noise from your air conditioning system, it's time to give us a call. One of our HVAC professionals can come to your home, listen to the noise, diagnose the problem, and fix it for you. Remember that the sooner you call, the less costly the air conditioning repair will likely be.