Now:
Use a high-efficiency pleated filter with an electrostatic charge that works like a magnet to grab the tiniest particles. Replace the filter every 90 days and check it monthly. If it looks dark and clogged, change it, and if you have pets, you may need to change it more often.
Keep the air-conditioning unit free of leaves, pollen, grass or branches that can interfere with its future efficiency. Make sure there is at least two feet of space cleared around outdoor units.
Monthly or Seasonally:
Inspect the insulation and refrigerant lines monthly. Before winter sets in, replace the humidifier filter and turn on the water.
Annually:
Replace the battery in the carbon monoxide detector. Walk around the exterior of the house and check that outdoor AC units and heat pumps are on firm and level ground. Pour one cup of bleach mixed with water down the AC condensate drain to prevent a buildup of mold and algae, which can clog the drain.
Always:
Keep at least 20 percent of a home’s registers open to avoid putting unnecessary strain on the HVAC system. Following these simple tips can prolong the life of your HVAC system and help you be prepared for whatever the winter season may bring.