Is your air conditioner making a buzzing noise? When your HVAC system is working well, you shouldn’t be able to hear it. If your unit is making weird sounds that is a telltale sign that it needs repair. Here’s a list of some common HVAC noises and what they mean.
Heat Pump Noise
A noisy heat pump is problematic. This can be caused by a faulty condensing fan, fan motor, or blower motor. Sometimes, debris or loose screws can cause issues with your fan and motor so it’s important to inspect the area to make sure neither of these is present.
Air Conditioner Making Noise
Wondering why your AC makes loud noise when starting? One or more components of your AC unit are worn or broken. It could be the belt that needs to be replaced or motor bearings that have become damaged.
AC Rattling Noise
A rattling sound from your AC may be caused by one of the following reasons:
To address any of these, turn off your unit and hire an HVAC specialist to address the issue.
Furnace Making a Loud Rumbling Noise
As your furnace powers on and off, you may hear weird sounds, which means that some part of your furnace is not working well. This could be caused by the blower fan coming loose, a broken seal, or a hole in the ductwork. If the sound is coming from outside, your compressor springs may have broken, or the fan is knocking against metal. If this sound continues or gets louder, call your local HVAC professional to take a look at it.
How to Quiet a Noisy Furnace Blower
A noisy furnace can keep you up all night. If you are experiencing this, getting to the root of the problem is a priority. The noise could be due to loose parts or a broken motor. Another cause could be damaged insulation causing a howling sound as air flows through the damaged sections. Replace this with high-quality insulation material.
Furnace Banging Noise
Loud banging sounds from your furnace mean it has broken down and needs to be repaired. Another cause could be your compressor needing replacement or that your piston pin or connecting rod is broken. Either way, you’ll need to refrain from using your furnace until it can be repaired or replaced.
Furnace Makes a High-Pitched Noise
A screeching or squealing sound from your furnace often means you need to replace the belts or the motor bearings have shifted and need to be corrected. Another reason for the noise is if the furnace motor needs lubrication. Be sure to keep the motor lubricated using the appropriate type of oil.
Furnace Making a Loud Buzzing Noise
A constant buzzing sound coming from your HVAC unit often means that you have a refrigerant leak or that the unit is overwhelmed due to excessive usage. This could also be due to an issue with the condenser fan or mean that there’s an electrical problem that needs to be rectified.
Contact Us
Call One Stop HVAC for reliable HVAC services in the GTA. We’ll help you diagnose the problem and work quickly to provide a long-lasting solution. Reach out to our team to learn more about our professional HVAC services.
