If you don't change your air conditioner filter regularly, several issues can arise:
Reduced cooling/heating efficiency: A dirty filter can obstruct the airflow, making it harder for the air conditioner to cool or heat your home effectively. As a result, your AC unit may work harder and longer, leading to increased energy consumption and higher utility bills.
Poor indoor air quality: The primary purpose of an air conditioner filter is to trap dust, pollen, pet dander, and other airborne particles. If the filter is clogged, it won't be able to effectively capture these contaminants, leading to poorer indoor air quality. This can cause respiratory issues and worsen allergies or asthma symptoms.
Increased wear and tear on the system: When the filter is clogged, the air conditioner has to work harder to push air through it. This additional strain can cause unnecessary wear and tear on the AC components, potentially leading to breakdowns and costly repairs.
Icing on the evaporator coil: If the airflow is restricted due to a dirty filter, it can cause the evaporator coil to get too cold and form ice. This not only reduces cooling efficiency but can also lead to system malfunctions and damage.
Shortened lifespan of the AC unit: The increased strain on the air conditioner caused by a dirty filter can shorten the overall lifespan of the system. Regularly replacing the air filter helps maintain the unit's efficiency and keeps it running smoothly for longer.
To avoid these issues, it's essential to follow the manufacturer's recommendations and replace the air conditioner filter regularly. The frequency of filter replacement depends on factors such as the type of filter, the level of air pollution in your area, and how often you use the system. In general, it's advisable to check the filter every month and replace it every three to six months, or more frequently if it's visibly dirty.