What Everyone Needs To Know About HVAC Systems

How To Tell Your HVAC To Shut Up And Run

by Amelia Martin

The best HVAC (heating, ventilation and air conditioning) systems are those that are barely noticed; those that are able to run in the background and cool or heat the house without making noise. Of course, a barely discernible noise level is to be expected because an HVAC is an electromechanical system with moving parts. However, if your HVAC is too noisy, here are a few things that may silence it.

Ensure the Air Ducts Are the Right Size

Air ducts should be installed with a particular HVAC size in mind; the two should be proportional. Using undersized air ducts may lead to noisy HVAC operations because air will be forced through the air ducts at high speed. This is more likely to be the case with a new construction or new HVAC installation rather than an existing system that has been quiet all along but has suddenly become noisy.

Clear Airflow Obstructions

Air obstructions within the ducts may also lead to a noisy HVAC operation. A dead animal, air duct damage during a storm damage incident or toys that find their way into the air ducts can all lead to noise generation. You may need the help of a professional technician to confirm if this is the issue.

Fix Electrical Malfunctions

Your HVAC system may also be noisy if it is experiencing an electrical malfunction. For example, loose wires or damaged relays may emit crackling or humming noises. An electrical malfunction is dangerous and should only be handled by a professional technician; if you suspect one, stop the HVAC and call for a technician immediately.

Plug Refrigerant Leaks

Small refrigerant leaks may not cause any noise at all. Serious refrigerant leaks, such as those caused by mechanical damage to refrigerant lines, can cause hissing sounds. Running the HVAC with low refrigerant levels may overwork and damage it. Apart from that, the leaking refrigerant may also affect your health. Therefore, this is a dangerous situation that is best handled by a professional technician so turn off the HVAC and call for one.

Install a Fence

Some HVAC systems get noisier with time due to regular wear and tear. If that is the case, then you may be able to block some of the noise coming from the exterior unit by installing a suitable fence around it. Just make sure to leave a reasonable distance between the unit and the fence for efficient air circulation.

For more information, contact a company like Ronnie Ritchie Service Co Inc.