Why Is My AC Making a Loud Noise?

As the summer heat rises, the last thing you want to deal with is a noisy air conditioner disrupting your peace. At Napps Cooling, Heating & Plumbing, we understand how frustrating and concerning these sounds from your air conditioner can be, so we’re here to help. In this blog post, our HVAC experts explain the potential causes behind a range of strange sounds that your air conditioner could be making and cover whether you can handle the issue yourself or if it’s time to call in a professional.

Unusual Air Conditioner Noises & What They Can Mean

Air conditioners aren’t entirely silent, but any loud or unusual noises should be a cause for concern. Here are a few common sounds and what they might indicate:

Buzzing

A buzzing sound coming from your AC unit often points to electrical issues, such as loose wiring, a failing motor, or issues with the capacitor. It can also be caused by debris in the unit, like leaves or twigs, that might be obstructing the fan blades. Ignoring this sound could lead to more significant problems, so it’s crucial to address it promptly.

Banging or Clanking

If you hear banging or clanking noises, they typically indicate loose or broken parts within the compressor unit. Components can become loose over time due to regular wear and tear, and if not fixed, they can cause further damage to the unit. The sooner you address this noise, the better, to prevent loose components from damaging others.

Squealing

Squealing noises are one of the most annoying AC sounds, and they are usually associated with issues in the motor or the fan belt. Worn-out belts or bearings in the motor can cause this high-pitched noise. Regular maintenance can help prevent these issues, but if you do hear squealing, it’s best to get it checked out sooner rather than later to avoid a full motor replacement.

Hissing

Refrigerant leaks are the most common culprits behind a hissing sound from your AC. Refrigerant is crucial for the cooling process, and any leak can severely impact your AC’s efficiency. Additionally, a hissing noise can indicate an issue with the compressor’s internal valve. Both of these problems require professional attention to prevent further damage and ensure your home stays cool.

When To DIY vs. Call for Professional AC Repairs

Understanding when you can tackle an AC issue yourself and when to call a professional is essential for maintaining your unit and avoiding further damage. Some minor issues, like replacing a dirty air filter or clearing debris from around the outdoor unit, can be handled on your own. Regularly checking and maintaining these parts can prevent many problems and extend the life of your AC system.

For more serious problems, it’s best to call in a professional. Electrical issues, motor problems, and refrigerant leaks require specialized knowledge and equipment to diagnose and repair safely. Attempting to fix these issues yourself can be dangerous and may void your warranty.

Schedule AC Repairs With Napps

At Napps Cooling, Heating & Plumbing, our team of NATE-certified technicians is ready to diagnose and repair any issues your AC might be experiencing. We also offer 24/7 emergency AC repairs, so you can count on us to be there quickly to resolve your air conditioning problem.

Our family-owned and -operated company has served the Longview, TX, area since 1957. Our decades of experience and commitment to customer service mean that will fix your air conditioner right the first time! With upfront pricing, service for all brands, and special offers, working with us is easy and affordable.

Contact Napps Cooling, Heating & Plumbing today to schedule AC repairs in Longview or the surrounding areas.