We like to rinse the unit with fresh water from the garden hose to help slow down the rusting but it eventually happens and needs to be substituted
It’s a wonderful idea to keep your body inspected by doing proper exercise and eating mostly healthy foods. The same goes for your HVAC system, you should try to keep it cleaned and inspected so that it can serve you well for a long time. I don’t constantly eat healthy foods, although I would say that 85% of my diet consists of healthy fruits and vegetables and grains. I like to keep my HVAC plan cleaned on a proper basis so that it doesn’t lose its efficiency. I have a reminder on my tablet telling me when it is time to disinfect it and it has worked absolutely well because of that for several years. I feel I can get another many years out of the central heating and A/C before I need to substitute it. I have been putting some money aside each week so that when the time comes I won’t have to go on a rice and beans diet to afford a new system. We live near the beach and the salt air does a number on the A/C compressors, rusting them within a year or 2 of getting them installed. We like to rinse the unit with fresh water from the garden hose to help slow down the rusting but it eventually happens and needs to be substituted. Our air handler is still the same one from a couple of HVAC units ago and the local business told me it will need to be substituted when I replace the plan next time. I trust his judgment as he has been my associate for a long time.