Air conditioners can make noises just like any other machine. For instance, the sound of air whooshing through your vents to reach the rooms of your home is pretty normal. Honestly, we’d be concerned if your air conditioner didn’t make this kind of noise. But there are sounds that an AC shouldn’t make, and these can often be clues toward a larger problem that needs to be taken care of.
AC repair in Kennewick, WA can be tough from a homeowner’s perspective. You want to notice any problems, but you don’t have an HVAC technician license, so how are you supposed to detect issues so you can call for help?
Noises are some of the easiest and most obvious ways that even someone paying little attention to their air conditioner could detect. We’re going to cover 5 basic noises that can be bad for your AC in a major way.
1. Bubbling or Hissing
Bubbling or hissing noises are two sides of the same coin. These are almost always the result of a refrigerant leak, which is a pretty devastating problem that your air conditioner could have.
Bubbling is usually the sound of oxygen bubbles infiltrating the liquid refrigerant line, while hissing is the sound of gaseous refrigerant escaping the line. Either way, these sounds should be a big red flag that you need professional repairs.
2. Grinding
Any grinding should be an immediate red flag, and that’s not just for air conditioners! Grinding, unless the appliance is literally a grinder, is usually the sound of metal hitting metal. This is an uncomfortable and loud sound, and it can be something that is hard to miss.
If you detect a grinding noise, quickly turn off your AC and call for repairs.
3. Shaking
If your air conditioner sounds like it’s shaking, it could be due to loose bolts and an improperly set up cage for the blower fan. Fan blades might be smacking against the housing, causing it to shake or vibrate rapidly. This is a breakdown waiting to happen, so we urge our customers to call for help when this noise comes up.
4. Buzzing
Buzzing is usually the sound of an electrical failure. There are plenty of electrical components located within your air conditioner and those can make buzzing or snapping noises when they run into problems.
Another sound you should be on the lookout for that could signal electrical problems, is rapid clicking. Your air conditioner will click when it turns on or off, but more clicking (or rapid clicking) could signal an issue with the capacitor.
5. Rattling
Rattling is a simple sound to hear, but it’s never a good one. If your air conditioner is rattling, chances are there’s a loose part somewhere in there that isn’t properly bolted down. This might not sound like a big deal, but it can quickly compound into a serious problem when that loose component bumps into a large or expensive component that then breaks down.
Frequently Asked Questions
Question: What AC sounds should I never ignore?
Answer: Hissing, bubbling, grinding, shaking, buzzing, rapid clicking, and rattling are all warning signs that your air conditioner may need repair. Some point to refrigerant leaks, while others suggest loose parts, electrical trouble, or metal-on-metal wear. If the sound is new, loud, or persistent, schedule professional AC service.
Question: Why is my air conditioner making a hissing or bubbling sound?
Answer: Hissing or bubbling often points to a refrigerant leak. Bubbling can happen when air enters the liquid refrigerant line, while hissing may come from refrigerant escaping as a gas. Because refrigerant problems can affect cooling performance and system safety, this is not a DIY repair.
Question: What does a grinding noise from my AC mean?
Answer: A grinding sound usually means metal parts are rubbing together, which can happen when a motor, bearing, or fan component is failing. Turn the air conditioner off quickly to prevent more damage, then call for AC repair. Continuing to run the system can make the problem worse.
Question: Is a buzzing air conditioner dangerous?
Answer: A buzzing air conditioner can signal an electrical issue, especially if the sound comes from the outdoor unit or happens with rapid clicking. The problem may involve electrical components, wiring, or the capacitor. Since electrical repairs carry safety risks, it is best to have a trained technician inspect the system.
Question: Why is my AC rattling or shaking?
Answer: Rattling or shaking often means something is loose inside the system, such as bolts, panels, fan parts, or components near the blower. A loose part can strike other expensive components and lead to a breakdown. Prompt repair helps stop a small noise from becoming a major AC problem.
Contact Americool Heating & Air Conditioning. Your comfort is our business!