I clean/maintenance my A/C system every year (in spring) by pretty much following this guide:
Here’s the cleaner I use and after 20 years it still looks like this:
Question 1: Is the “A/C Safe” cleaner really any different from a typical foaming bathroom cleaner like:
Question 2: The FamilyHandyMan guide suggests applying some oil to the fan motor if it has lubrication points. How do I know if my motor has lubrication points via visual inspection?