My coils have build up. Condensation is falling off into filter and then onto the floor. Foam may help, but there's still material in it after use.
Notice that condensation is occuring only on the middle 3 coils, not the others. Could this mean some of the coils are blocked inside?

Are these coils justifiable to have it replaced?
My guess is no since air can technically flow over it and be cooled...but it works harder and my bill will be higher