Mara Heating & Air Conditioning: Certified HVAC Services Serving Hanover 02339

Annual maintenance is crucial for safety. Our Hanover technicians perform a comprehensive check of your furnace's heat exchanger, flue pipes, and combustion chamber—common points where cracks or blockages can lead to dangerous carbon monoxide leaks. We ensure proper ventilation and that all safety controls are functioning, giving you peace of mind during our cold New England winters.

Key signs include reduced cooling, ice on the refrigerant lines or evaporator coil, and a hissing sound. In Hanover's humid summers, a leak is urgent because it forces your AC to work harder, increasing energy bills and strain that can lead to a costly compressor failure. More importantly, refrigerant is essential for proper operation; low levels mean your system can't effectively dehumidify your home.

For optimal safety and efficiency, we recommend a two-step approach. In the fall, focus on your heating system: a carbon monoxide safety check, burner cleaning, and filter replacement. In the spring, switch to cooling: checking refrigerant levels, cleaning condenser coils, and testing system pressure. This proactive, seasonal schedule addresses Hanover's specific climate challenges and helps prevent emergencies.