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3 Common HVAC Questions Homeowners Ask

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The HVAC system is one of the most important systems in a home. It's important that you know how to troubleshoot and maintain your furnace when winter weather sets in. Without a functional furnace, you could experience a host of issues within your home.

A lack of proper heating can create a dangerous environment for your family. You also run the risk of having plumbing freeze up and pipes burst as a result of cold temperatures inside your home.

Three of the most common questions homeowners have about their HVAC heating systems are answered below. This information will help you better care for your own furnace in the future.

1. Why Do Furnaces Circulate Dust?

Homeowners can become frustrated with the level of dust that settles over the surfaces in their home while the furnace is in use. It's important to recognize that an increase in dust production is not normal for a modern furnace. If you do see a spike in dust activity, this is likely an indication that you need to change out the air filter in your furnace.

Air passes from the outside environment into your furnace for heating through the air filter. Allergens, contaminant particles, and dust are removed from the air supply by the filter. Air filters can become clogged over time.

A clogged filter is not capable of effectively removing particulate matter from the air that is heated and circulated through your home. The result is an increase in the amount of dust being delivered through your furnace vents.

Experts suggest that you change out your furnace filter at least once every 90 days.

2. Why Are Furnaces Noisy?

You want your home to be a place of peace and tranquility. It's hard to relax when your furnace is constantly interrupting your day with a series of intrusive clicks, bangs, hisses, or rattles. Modern furnaces are made to operate as quietly as possible.

It's completely normal to hear the sound of the blower pushing air through the ducts in your home, but your furnace should not be so loud that it begins to interfere with your day-to-day activities.

Loud noises coming from your furnace are usually the result of loose screws, bolts, and other fasteners. Once these fasteners come loose, they can vibrate when the furnace is active. These vibrations generate a lot of noise that is transmitted through your air ducts.

Loud furnace noises could also be caused by a failing blower motor or a damaged motor mount. You should contact an HVAC technician for help if your furnace is operating too loudly.

3. Why Do Furnaces Fail?

One of the most inconvenient problems a homeowner can face is the sudden failure of their furnace. Before you go into panic mode, take a moment to troubleshoot your home's heating system.

Check your thermostat settings if you feel like your furnace isn't performing. It's possible that the temperature setting was bumped or changed by accident. You may also discover that your thermostat is running a scheduled program that overrides the manual temperature setting. You can easily reset the thermostat to eliminate problems and restore the heat in your home.

Other common causes of a sudden furnace failure include tripped circuit breakers, blocked gas lines, and provider outages. If you have verified that your thermostat is working properly and your furnace has access to a reliable energy source but the furnace still isn't producing heat, it's time to schedule an HVAC service appointment.

An experienced technician will be able to identify the cause of the furnace failure and let you know if your furnace can be repaired or if you will need to invest in a new furnace for your home.

To learn more, contact a heating contractor.