Purchased new Amana 2 ton, 16 seer coil, condenser, air handler and thermostat in January 2015. The control board in the air handler has failed 4 times so far and every failure was due to condensation in the unit which fouled up the control board. Every time I have asked Goodman if there were a way to coat the control board in a special silicone spray to protect it during the humid part of the year. The answer is always no. They replace the control board under warranty, but I have to pay labor for every failure and replacement. They do not appear to have any concern about the impact this has on a disabled person on a very limited income. I want a more permanent solution covered under warranty.