Late August and September are the transition period between cooling season and heating season on Long Island.
Taking a few steps now — while the AC has been running all summer and any issues are fresh — sets you up for a smooth transition to heating season and protects your equipment during the months it sits idle. Here is what to do.
1. Note Any Performance Issues from This Summer
Before you forget, write down any problems you noticed this summer: rooms that stayed too warm, unusual noises, higher-than-expected energy bills, or times the system struggled to keep up. These observations are valuable for your fall service visit and help technicians diagnose issues that may not be apparent during a routine inspection.
2. Schedule a Fall HVAC Service Visit
Fall is the ideal time for a combined AC wrap-up and heating system startup inspection. A technician can address any lingering AC issues, inspect the furnace or heat pump before you need it, and ensure both systems are ready for their respective seasons.
3. Change the Air Filter
After a full summer of running, your air filter has likely accumulated significant dust and debris. Replace it now so your system starts the heating season with clean airflow. This is also a good time to stock up on filters for the winter.
4. Clean Around the Outdoor Condenser Unit
Clear any vegetation, debris, or grass that has grown around the outdoor unit over the summer. Trim back shrubs to maintain at least two feet of clearance. This is also a good time to gently rinse the coils with a garden hose if they look dirty.
5. Do Not Cover the Outdoor Unit
Many homeowners cover their outdoor AC unit for winter — but this is generally not recommended. Covers trap moisture, create a habitat for rodents, and can be forgotten in spring (running the AC with a cover on damages the unit). Modern condenser units are designed to withstand winter weather. If you are concerned about debris, a top-only cover (covering just the top, not the sides) is acceptable.
6. Test Your Heating System Before You Need It
Do not wait until the first cold night to find out your furnace or heat pump is not working. In September, when temperatures are still mild, turn your thermostat to HEAT and set it above the current room temperature. Confirm the system starts and produces warm air. If it does not, you have time to schedule a non-emergency repair before cold weather arrives.
7. Check Carbon Monoxide Detectors
Before heating season begins, test all carbon monoxide detectors in your home and replace batteries. CO detectors should be replaced every 5–7 years. Carbon monoxide from a malfunctioning furnace is odorless and colorless — working detectors are essential.
8. Clear Heating Vents and Registers
Summer furniture rearrangements sometimes result in heating vents being blocked by rugs, furniture, or curtains. Walk through your home and confirm all supply and return vents are open and unobstructed before heating season begins.
Schedule Your Fall Service with A1
A1 Heating & Air Conditioning provides fall HVAC tune-ups and heating system inspections throughout Long Island. Book now before the fall rush — appointments fill up quickly in September and October. Call 631-331-2102 or schedule online.
