Originally Posted by
hvac1000
When you actually discover the exact answers to all those questions I sure someone will buy the answers off of you. This have been going on for some time and some attribute it to the oil like coating that is sprayed on the coils as a presertive/whatever. Some contractors are actually pressure cleaning the coil with a acid base cleaner BEFORE they are installing them. Many post this as a cure but I really do not know about that.
If it is a brand new unit let the contractor that sold and installed the unit fix the problem and also contact the local distributer/factory and complain real loud but nice. Good luck.