All checklists
Heating & cooling · Every 1–3 months (check your filter's label)
HVAC air filter change
Swap the furnace or air-handler filter so air moves freely and the system isn't working harder than it needs to.
Add to an item in my homeSteps
- 1Turn the thermostat off
- 2Note the size printed on the old filter's frame
- 3Slide out the old filter
- 4Check the airflow arrow on the new filter — it points toward the blower
- 5Slide in the new filter
- 6Write today's date on the frame
- 7Turn the thermostat back on
Steps follow the sources listed. Your item's manual comes first.
Safety first
Turn the system off before removing the filter.
When to call a pro
If the old filter is wet, the blower sounds unusual, or you smell burning.
In GoodKeap
Open the item on its page, choose Add checklist, and pick this one. Tick steps as you go, add a note, and each time is saved to the item's record.