All HVAC systems make some noise while they’re running. A steady hum on a hot day is completely normal and nothing to worry about. But if you start hearing banging, clanking, or screeching, it could be a sign that something is wrong.
Diagnosing HVAC problems based on sound alone isn’t a perfect science, but unusual noises offer helpful clues. This guide will help you better understand what those sounds might mean so you’re more prepared when your Hoock’s Heating & Cooling technician arrives.
Why It Matters
You may not be an HVAC expert, but you know an unusual sound when you hear one. Preventing small issues from turning into larger ones is critical to minimizing repair costs and extending the life of your system.
A strange noise coming from your heating and cooling unit, while inconvenient, can be a blessing in disguise. Don’t ignore it! A quick call to Hoock’s can help you sort out the cause before you experience a costly breakdown or system failure.
Banging or Clanking
If you hear a clanking, banging, or rattling sound coming from within your system, there’s a good chance it’s being caused by a broken or disconnected part. Though it’s challenging to determine the exact component that may have failed without looking inside, a damaged blower, imbalanced motor, or disconnected rod may be to blame.
As soon as you hear a noise that sounds like something is “loose,” don’t compound the problem by continuing to run your heat or AC. Shut down your unit immediately and call Hoock’s to schedule an inspection or repair to restore functionality and minimize damage.
Hissing or Whistling
Leaks of any kind compromise energy efficiency and force your system to overwork. Hissing or whistling sounds could be the sign of an air duct or refrigerant leak. In addition, these noises might stem from a clogged air filter.
If you notice a whistling noise, check your air filter first. Replacing a dirty filter is an easy DIY job that could set things straight in under a minute. If that doesn’t fix the problem, it’s time to call in a pro. Your Hoock’s technician will use the latest diagnostic technology to identify leaks or pressure issues that are hurting system performance and causing the unusual sound.
Buzzing
Your HVAC system relies on a complex electrical configuration to keep your home at the desired temperature. An unfamiliar buzzing noise could indicate a problem related to various electrical components like the capacitor or compressor. It could also be a sign of loose wiring within your unit.
Because of the risks involved with anything electrical, checking for problems is a job for a professional. Trying to diagnose an electrical issue can be dangerous to both you and your system.
Clicking
A clicking noise doesn’t always mean something’s wrong. In fact, it’s common when systems turn on or off. But if you’re hearing clicks while the heat or AC is running, it bears investigating.
Frequent clicking could signify a problem with the electrical control system or a faulty thermostat. If it persists, have a technician take a look to prevent further damage, including a complete system failure.
Screeching or Squealing
A high-pitched screeching or squealing noise typically indicates a worn-out belt, fan that’s going bad, or motor bearings that need lubrication. These parts, while important to your system’s overall functionality, are typically easier and less expensive to repair and replace.
Remember, catching issues early can prevent bigger problems down the line. If ignored, even small components can lead to system inefficiencies or worse.
Don’t Ignore It: Get Hoock’d Up with an Expert Technician
Strange sounds coming from your HVAC system rarely fix themselves. And unlike with your car, you can’t just turn up the music and ignore it (not that we recommend that!). There is good news though: an irregular noise is often the first sign that something’s going wrong. Catching the problem early can save you a significant amount of money on potential repairs while protecting your system from further issues. If you’re noticing a noise that gives you the feeling “something’s not right,” call in a Hoock’s Heating & Cooling professional. We’ll diagnose the issue, recommend the most affordable fix, and restore your comfort and peace of mind. Schedule your appointment today!