https://www.reddit.com/r/hvacadvice/comments/14zfha1/does_coil_cleaner_actually_work_does_any/
Does Coil cleaner actually work? Does any particular brand work ...
Jul 14, 2023 ... Many cleaners/foams will react to the urea that's left behind. Evaporator, you can use cleaner, no problem. Just make sure to manually clean the ...