Why Monthly Changes Are Critical:
- AC runs more hours, filters clog faster
- Dirty filters reduce efficiency 5-15%
- Clean filters improve air quality
- Prevents costly coil cleaning
Summer Filter Strategy:
- Buy 6-month supply in bulk (save 30-40%)
- Set phone reminder for same date monthly
- Consider upgrading to MERV 11 for better filtration
- Keep spare filters accessible
Condensate Drain Maintenance
Monthly Drain Care:
1. Locate drain pan and drain line
- Usually near indoor air handler
- May have multiple drains (primary and secondary)
2. Clear drain line
- Pour 1 cup white vinegar down drain monthly
- Use wet/dry vacuum to clear clogs
- Install drain pan tablets for algae prevention ($15-$25)
3. Check for backups
- Look for water around air handler
- Check secondary drain for water flow
- Clear any visible algae or debris
Energy Efficiency Monitoring
Weekly Energy Checks:
- Compare utility bills to previous years
- Note unusual spikes in consumption
- Monitor thermostat for proper operation
- Check for ice formation on outdoor unit
Efficiency Optimization Tips:
- Set thermostat to 78°F when home, 85°F when away
- Use ceiling fans to feel 4°F cooler
- Close blinds during peak sun hours
- Avoid using heat-generating appliances during day
Mid-Season Professional Check (Optional: $100-$150)
Recommended for systems 7+ years old:
- Refrigerant level verification
- Electrical connection inspection
- Coil cleaning if needed
- Performance optimization