Key takeaways
- Change filters on a schedule.
- Keep the outdoor unit clear of plants and debris.
- Keep vents and returns unblocked.
- Schedule professional tune-ups in spring and fall.
Monthly
Check the filter and change it when it is dirty. Look at the vents and returns to make sure furniture and rugs are not blocking them.
Listen for new noises.
Spring
Clear leaves, grass clippings and mulch away from the outdoor unit and trim plants back a couple of feet. Test the air conditioner before the first hot day.
Schedule a professional cooling tune-up.
Fall
Test the heat before the first cold night and schedule a professional heating tune-up. Replace the thermostat batteries if yours uses them.
Check that the furnace area is clear of storage.
When to call a professional
Any gas smell, burning smell, water leak, ice on lines, repeated breaker trips or loud noises call for a professional.
Annual professional service finds worn parts and keeps the system efficient.
Quick answers
How often should I change my filter?
Every one to three months for thin filters, longer for thick media filters.
Can I clean the coil myself?
A gentle rinse helps, but a professional cleaning is more thorough and protects the fins.
