Changing the HVAC Air Filter Regularly Prevents These Negative Effects

July 22, 2014

The air filter plays a key role in keeping your HVAC equipment operating as it should, so it’s essential to check it monthly during the heating and cooling seasons. If you don’t clean or replace the filter whenever dirt starts to accumulate, a number of problems can develop that negatively impact your comfort, costs and the system’s reliability. Some of the undesirable effects of a dirty air filter that you can prevent by performing this simple monthly chore include:

Costly breakdowns and failures. A blocked filter restricts critical airflow through the HVAC system, and an insufficient flow of air puts unnecessary strain and wear on key components. If the issue isn’t corrected, you could face unexpected repair bills, or worse, a premature equipment failure that requires an expensive replacement.
Reduced capacity. Airflow has to stay within certain limits for your HVAC system to run at full capacity. If a clogged filter is suffocating the system, you’ll feel a loss of conditioned air at the registers. Since adequate air movement across the cooling coil is necessary for effective moisture removal, you may also experience excess humidity issues during the summer months.
Bigger energy bills. When heating and cooling equipment is forced to compensate for a clogged filter while operating, the system has to work harder to reach the thermostat’s target temperature. You’ll see an increase in energy consumption, and higher monthly operating costs.
Safety issues. Operating your HVAC system when the filter is blocked can cause the motor(s) to overheat. Not only can this potentially damage sensitive and expensive components, it increases the risk of fire and endangers your home and everyone in the household.
Bad air quality. If the filter in an HVAC system is blocked with accumulated dust and dirt, it can’t capture mold spores, pet dander, pollen and other minute particles that make life miserable for anyone with allergies and sensitivities. Instead, these irritants stay inside the ductwork and get re-circulated throughout your home.