The answer to 'maintenance or maintenance' is that maintenance and maintenance are the same thing - they both refer to the regular, preventive care and servicing of HVAC systems to keep them running efficiently and prevent major breakdowns. Maintenance typically involves tasks like cleaning or replacing air filters, inspecting and tightening electrical connections, lubricating moving parts, and checking refrigerant levels. This helps extend the life of your HVAC system and can save you money on energy bills and costly repairs down the road.
Regular HVAC maintenance is generally recommended 1-2 times per year, typically in the spring and fall before the peak heating and cooling seasons. While some basic maintenance tasks can be done by homeowners, it's best to have a licensed HVAC technician perform a comprehensive inspection and tune-up to ensure everything is working properly and safely.