Maintenance by month · Last checked: October 21, 2026

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Timing depends on where you live. Freeze-related jobs are tied to your area's average first and last frost dates: look up your frost dates or ask your local National Weather Service office or Extension service.

This month

• ☐ Check the HVAC filter more often while the AC runs hard. [2] If you find a problem →
• ☐ Gently rinse dirt off the outdoor AC coils (power off first). [28] If you find a problem →
• ☐ Clean the refrigerator coils if your model needs it. [29] If you find a problem →
• ☐ Make sure the dryer's outside vent flap opens and you can feel air when the dryer runs. [11] [6] If you find a problem →

Every month

• ☐ Check the HVAC filter. Change it if it looks dirty, and at least every 3 months. [1] [2] If you find a problem →
• ☐ Press the test button on every smoke alarm. [3] If you find a problem →
• ☐ Check CO alarms the way the maker's instructions say. [5]
• ☐ Test GFCI outlets: press TEST, then RESET. [8] If you find a problem →
• ☐ Look under sinks and around the water heater and toilets for drips. [15] If you find a problem →
• ☐ Clean the dryer lint filter every load. [11] If you find a problem →

Done by: ____________   Year: ______   Notes: ______________________________________

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Sources (fetched and checked October 21, 2026)

1. ENERGY STAR, Heat & Cool Efficiently
2. ENERGY STAR, Maintenance Checklist
3. U.S. Fire Administration, Smoke Alarms
5. U.S. Fire Administration, Carbon Monoxide Safety flyer (PDF)
6. U.S. Fire Administration, Clothes Dryer Fire Safety flyer (PDF)
8. U.S. Consumer Product Safety Commission, GFCI Fact Sheet (PDF)
11. Association of Home Appliance Manufacturers, Clothes Dryer Care
15. U.S. EPA WaterSense, Home Maintenance (leaks)
28. Bryant, How to Clean AC Coils
29. Whirlpool Product Help, How and When to Safely Clean the Condenser Coils