Your air conditioning unit is a complex piece of machinery, and sometimes, it can also make complicated noises. There might come a time where your AC breaks down and expels sounds beyond its usual whooshing of air. When that happens, you need to pay attention so you can quickly identify the problem and call a professional for help. Strange sounds are usually indicative of an internal issue that causes your unit not to perform at its best.
To help you recognize and analyze common AC sounds, here is a list that can serve as your reference in the event your system shows signs of problems.
Shrieking
This sound is when you hear metal banging against each other. It’s most likely a sign of a motor problem, typically motor bearings that have worn own. It should not be taken lightly as damaged bearings can cause permanent impairment on your motor. At the first sign of shrieking from your AC, call your trusted HVAC specialist right away.
Grinding
Grinding is another sign of a motor-related problem, albeit a less severe one. It could mean that there’s too much dust build-up inside, or there is little lubrication on the components. If the grinding sound is accompanied by an acrid odor emitting from the vents, it might mean that your motor is overheating, and you should shut it down ASAP until a professional comes to conduct a proper inspection.
Chattering or Rattling
A rattling or chattering sound can be caused by many issues, but it’s usually a sign that your unit is beginning to deteriorate, or there are parts that have come loose. It might also mean that some twigs or leaves have clogged your system. The issue can be easily remedied by checking for loose screws or bolts, cleaning out condenser coils, and changing your indoor air filter, but if you want peace of mind, you should enlist the help of a professional to check if there might be more pressing damage.
Hissing or Bubbling
Hissing or bubbling noises usually steam from internal leaks. You might have leaky refrigerant lines or compressor valves. When not attended to right away, it might lead to bigger, more costly problems. A refrigerant leak can also cause health issues, so it would be in your best interest to have it repaired ASAP.
Clicking
Clicking noises are normal when your AC unit is booting up, or when it cycles down. It’s only a problem if there’s constant clicking during operation. It could mean that your thermostat is failing or the system is having a hard time powering the compressor. These are both electrical issues that you need to be repaired right as soon as possible.
Clanging
This kind of noise can be alarming, but it usually only means that there’s a loose fan belt inside your unit, or there’s a bent air handler that comes in contact with the fan blades. When you hear this, shut down the system and fix it right away by hiring a professional.
So there you have it. You should try and familiarize yourself with the noises listed above to avoid incurring further damage to your AC unit. At the first sign of a problem, you can contact us so we can assess the issue and make the necessary repairs — stat.
We’re an air conditioning repair service in Tampa, get in touch with us to see how we can help.
