According to ENERGY STAR : “A dirty filter will slow down air flow and make the system work harder to keep you warm or cool—wasting energy. A clean filter will also prevent dust and dirt from building up in the system — leading to expensive maintenance and/or early system failure.” Check your air filter once a month (especially during summer and winter months) and change it if it’s dirty...

The most important maintenance task that will improve the efficiency of your air conditioner is to routinely replace or clean the air filter. Replace one-inch pleated filters once a month. Standard fiberglass filters last between 1-3 months Homes with pets or air conditioners in constant use may need more frequent attention HVAC equipment, should be inspected, cleaned, and serviced at least once a year.

Heating in the Fall and Cooling in the Spring by a licensed technician. Maintenance should include: Checking levels of refrigerant Testing for refrigerant leaks using a leak detector Sealing any duct leakages in central systems >>> Read More