Check filters regularly and replace dirty filters. Keep return grilles, supply vents, and the area around outdoor or rooftop equipment clear.
Keep doors and gaskets clean, avoid blocking airflow, and watch for frost buildup, temperature swings, unusual noises, or water leaks.
Avoid pouring grease or solids into drains. Slow drainage, recurring backups, leaks, or unusual odors should be addressed before they become larger problems.
Do not use damaged outlets, cords, switches, or fixtures. If a breaker repeatedly trips, stop using the affected equipment and schedule professional service.
Document equipment temperatures and unusual behavior. Scheduled maintenance can identify worn parts, dirty coils, drainage problems, and airflow restrictions before an emergency.