The air filter in your house or apartment is the first line of defense for your heating, ventilation, and air conditioning (HVAC) system. It protects against dust, dirt, and large particles that could enter the system and cause damage by clogging up your HVAC components. Here are some warning signs that your air filter needs to be replaced.
1. Poor Indoor Air Quality
HVAC systems rely on air filters to keep the air you breathe clean and healthy. If your HVAC system constantly sends dirty air back into the house, you probably have a bad air filter. Checking the filter at least once a month and replacing it every 90 days or so will ensure that you maintain good indoor air quality.
2. High Energy Bills
A dirty air filter can cause your HVAC system to work harder than necessary to do its job of keeping you comfortable. A clogged air filter blocks airflow through the system, which can make it more difficult to reach your thermostat settings. In addition, when it’s overworked by a dirty air filter, your HVAC unit suffers more wear and tear, making it more likely to break down sooner and need repairs or premature replacement.
3. Loud or Strange Noises
If you hear loud noises coming from your HVAC unit, it could mean that the filter is clogged and dirty air is being forced back through the system. The most common sound from a clogged filter is a whistling noise caused by disrupted airflow. You may also hear rattling, buzzing, or flapping noises if your HVAC system is running with a dirty filter that needs to be changed.
4. Rising Energy Bills
When your air filter is clogged and forcing your system to run more than necessary, you will experience more than just an uncomfortable house. You’re also going to see your energy bill going up month after month. Regularly replacing your filters is an easy way to keep your heating and cooling costs in check.
5. Mold and Mildew Growth
If your air filter is clogged with large particles, this could cause moisture to get trapped in your HVAC system. Moisture will lead to mold and mildew, which can cause health issues for you and your family. You can easily wipe away the mold yourself with a little water or bleach mixed with water. If the mold has spread to your ductwork or other areas of the home, contact an HVAC technician for assistance.
The air filter in your home is a relatively inexpensive HVAC component that can have a major impact on your comfort and finances. Ensuring that it is changed regularly will protect your HVAC system and your health. If you are a Green Bay, WI resident and need HVAC maintenance or repair performed, contact Nicolet Heating & Cooling today!