With today’s sound-dampening technology, the decibel level of your HVAC system will be between 25 and 55, depending on the type of air conditioner you have. In layman’s terms, a volume of 25 decibels corresponds to the sound level of a whisper. In contrast, a volume of 55 dB corresponds to a typical moderately loud discussion in a domestic setting. 

Current ductless AC options, such as window and mini-split models, are often quieter than traditional central ducted units. Any air conditioner generating unusually loud noises is either broken or experiencing another issue requiring professional care. 

Noises coming from your air conditioner can be an early warning sign of a problem that needs air conditioning repair service.

It’s important to be able to identify distinct sounds since they may indicate different issues. Here’s how you can do this.

5 AC Haunting Sounds: Indication Your Air Conditioner Needs Urgent Attention of a Professional Repairer

• Banging Noise

The compressor is likely at fault if your air conditioner generates a banging noise. This section of your HVAC system is specifically made to transport the coolant around your home. 

Loosening of the HVAC system’s compressor component frequently signifies that your unit is in its middle or late stages of life. 

If the components in your air conditioner’s compressor become loose, you may hear an unwanted sound whenever the system is turned on. The noise is produced by loose parts striking the compressor’s outer casing. 

Since the compressor is likely not designed to be taken apart without causing damage, you may need to buy a new energy-efficient one. If your AC unit is making a banging noise, it’s time to contact a professional air conditioning repair service.

• Grinding

Is your air conditioner generating a horrible grinding noise whenever it turns on? If yes, then it’s because the air handler malfunctioned. 

The air handler’s motor operates with less friction – thanks to lubricated bearings. However, as time passes, the bearings in the air handler deteriorate, leading to an increase in friction. 

This results in a grinding noise. If you hear this noise, don’t delay in getting it fixed. Before the air handler motor overheats and burns out, you should change the bearings.

• Hissing

When an air conditioner emits a hissing sound, it might indicate a moderate to serious air duct leak. A faulty expansion valve or an incompatible air filter might be the scapegoat for that noise. Don’t hesitate to call the air conditioning service if you suspect problems with your air conditioning system. 

• Screeching

A broken fan motor in the external condenser is the most typical cause of screaming noises coming from an air conditioner. 

A screeching sound from your air conditioner usually means something is wrong with the fan motor. A malfunctioned compressor motor in the condensing unit might account for this haunting noise. 

This sound might also be the result of a faulty blower fan motor. The blower fan is specifically designed to gather hot air from each room. When the blower fan is turned on, hot and humid air from the whole enclosure is sucked into the return ducts and transported to the air conditioner for cooling. Next, the blower fan will circulate the chilled air throughout your home. 

Damaged bearings in your fan motor might potentially cause a screeching noise. The source of the noise might be a broken fan belt. Deactivate the unit and contact a licensed HVAC technician as soon as possible if you hear a loud noise from your air conditioner. 

• Humming

If your air conditioner’s relay switch is broken, you may hear a humming sound. This part is very important as when it gets power from your thermostat; this part activates the outside condenser unit. Unfortunately, you will be without air conditioning until a qualified expert examines this problem. You should not put off fixing the electrical system. This will severely harm your central air conditioning system and increase the repair expense. 

Don’t Leave Your AC Alone to Combat the Challenges! We Are Here for You

While all of the aforementioned noises are signs of an in-trouble air conditioner, there are others too. Ultimately, there is probably something wrong with your air conditioner if it produces noises you have never heard before. It’s always a better and more cost-effective bet to have a professional take as soon as you suspect there could be a problem. 

Total Comfort Solutions has a skilled team that will clean and repair your HVAC system. We can diagnose the problem with your air conditioner and recommend the best course of action, whether repair or replacement. Contact Us Now!

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