The answer to 'maintenance or maintenance' is that maintenance and maintenance are both important for keeping your HVAC system running efficiently and preventing costly breakdowns. Maintenance refers to the regular, preventative tasks performed to maintain the system, while maintenance refers to the repairs and replacements needed to fix issues that arise.
Maintenance is typically done on a regular schedule, such as annually or semi-annually, and involves tasks like cleaning the system, checking refrigerant levels, lubricating moving parts, and inspecting for any potential problems. This proactive approach can help extend the lifespan of your HVAC system and keep it operating at peak performance. Maintenance, on the other hand, is reactive and involves repairing or replacing components that have failed or are not functioning properly.