Having central air conditioning in your home can help make those hot, humid Hamilton summers much more bearable.
There’s a usual sound an AC unit makes when the thermostat in your home tells it to turn on, and most of us recognize the familiar hum of the unit. What happens, though, when your AC starts to make some unfamiliar noises? Is it time to call in a professional repairman?
Here are a few noises you might find your central air conditioning unit making, and what they could mean, so you know how to handle them.
Banging AC Unit Sound
If you notice a banging noise in your AC unit, it usually means there are some loose parts somewhere inside the compressor. The loose parts are what is creating the banging noise. The banging noise could also mean it’s time for a compressor replacement.
Clicking Air Conditioning Noises
Usually, when the unit is powering up or shutting down, clicking noises are common and expected, but when the clicking continues when the unit is up and running, there could be a problem. The continuous clicking could be a sign of a failing thermostat or a defective control. An AC unit has so many electrical parts to it, so if you notice any electrical issues, it’s important to check them out as soon as possible.
Squealing AC Fan
Sometimes fans or blowers can make squealing noises either inside your home via the duct work or directly from the AC unit. Where the squealing is coming from could help determine what the issue is. If the squeal is coming from outside the home, it could be the blower motor as they tend to start squealing loudly when they’re about to go bad. The blower wheel can also squeal when it’s going bad, although a squeal is sometimes normal for some units. It’s important for you to determine if this is a new noise, or if this is a noise you normally hear when the unit starts up.
Rattling Air Conditioning Unit
Over time, the parts of your AC unit will start to break down as they are used and experience wear and tear. Sometimes when the parts start to break down, they will cause rattling inside the unit itself. The rattling can be a sign that your AC overall is starting to deteriorate. You can eliminate some problem sources if you can check for loose screws around the outer casing of the unit, and by cleaning the condenser coils if you feel comfortable doing so.
Screaming AC Unit Noise
If your air conditioner is screaming when it turns on, this is a very serious issue, and you need to call a professional right away. Oftentimes a screaming unit is a sign of a refrigerant leak, which can be very dangerous to the health of your family. The screaming could also be a sign of high internal pressure in the compressor, and that is also very dangerous. In either of these situations, your AC may actually turn off on its own – which is a good thing as it means there’s a sensor in the unit working to shut it down and prevent a hazardous situation.
If you’re having problems with your AC unit, Hamilton Home Comfort is here to help. We serve the Hamilton, Ancaster, Grimsby and Binbrook region. Call us today and we’ll gladly come out and check out your home’s AC.